This is a test network. Coins have no value.

Documentation

General

Addresses

Blocks

Mining

Fees

Mempool

Transactions

Lightning

Below is a reference for the Testnet REST API service.

General

GET Difficulty Adjustment general
Endpoint
GET /testnet/api/v1/difficulty-adjustment
Description
Returns details about difficulty adjustment.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/difficulty-adjustment"
Response
{
  progressPercent: 44.397234501112074,
  difficultyChange: 98.45932018381687,
  estimatedRetargetDate: 1627762478,
  remainingBlocks: 1121,
  remainingTime: 665977,
  previousRetarget: -4.807005268478962,
  nextRetargetHeight: 741888,
  timeAvg: 302328,
  adjustedTimeAvg: 302328,
  timeOffset: 0
}

Addresses

GET Address addresses
Endpoint
GET /testnet/api/address/:address
Description
Returns details about an address. Available fields: address, chain_stats, and mempool_stats. chain_stats and mempool_stats each contain an object with tx_count, funded_txo_count, funded_txo_sum, spent_txo_count, and spent_txo_sum.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/address/tb1qp0we5epypgj4acd2c4au58045ruud2pd6heuee"
Response
{
  address: "tb1qp0we5epypgj4acd2c4au58045ruud2pd6heuee",
  chain_stats: {
    funded_txo_count: 6747,
    funded_txo_sum: 84313783821,
    spent_txo_count: 0,
    spent_txo_sum: 0,
    tx_count: 6747
  },
  mempool_stats: {
    funded_txo_count: 0,
    funded_txo_sum: 0,
    spent_txo_count: 0,
    spent_txo_sum: 0,
    tx_count: 0
  }
}
GET Address Transactions addresses
Endpoint
GET /testnet/api/address/:address/txs
Description
Get transaction history for the specified address/scripthash, sorted with newest first. Returns up to 50 mempool transactions plus the first 25 confirmed transactions. You can request more confirmed transactions using an after_txid query parameter.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/address/tb1qp0we5epypgj4acd2c4au58045ruud2pd6heuee/txs"
Response
[
    {
      txid: "3e6afd67862ce9fe3eb55268a3107f495415ff1b5d1933c928507e9bdf7a21e6",
      version: 2,
      locktime: 0,
      vin: [],
      vout: [],
      size: 211,
      weight: 736,
      fee: 0,
      status: {
        confirmed: true,
        block_height: 2091086,
        block_hash: "00000000340f3667cce7032d084973ca29bdd0d858ec363ed894ad4c8ed09ebc",
        block_time: 1630607773
    }
  },
  ...
]
GET Address Transactions Chain addresses
Endpoint
GET /testnet/api/address/:address/txs/chain
Description
Get confirmed transaction history for the specified address/scripthash, sorted with newest first. Returns 25 transactions per page. More can be requested by specifying the last txid seen by the previous query.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/address/tb1qp0we5epypgj4acd2c4au58045ruud2pd6heuee/txs/chain"
Response
[
  {
    txid: "3e6afd67862ce9fe3eb55268a3107f495415ff1b5d1933c928507e9bdf7a21e6",
    version: 2,
    locktime: 0,
    vin: [],
    vout: [],
    size: 211,
    weight: 736,
    fee: 0,
    status: {
    confirmed: true,
      block_height: 2091086,
      block_hash: "00000000340f3667cce7032d084973ca29bdd0d858ec363ed894ad4c8ed09ebc",
      block_time: 1630607773
    }
  },
  ...
],
GET Address Transactions Mempool addresses
Endpoint
GET /testnet/api/address/:address/txs/mempool
Description
Get unconfirmed transaction history for the specified address/scripthash. Returns up to 50 transactions (no paging).
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/address/tb1qp0we5epypgj4acd2c4au58045ruud2pd6heuee/txs/mempool"
Response
[
  {
    txid: "16cd9bbc6b62313a22d16671fa559aec6bf581df8b5853d37775c84b0fddfa90",
    version: 2,
    locktime: 0,
    vin: [ [Object] ],
    vout: [ [Object], [Object] ],
    size: 226,
    weight: 904,
    fee: 6720,
    status: { confirmed: false }
  }
]
GET Address UTXO addresses
Endpoint
GET /testnet/api/address/:address/utxo
Description
Get the list of unspent transaction outputs associated with the address/scripthash. Available fields: txid, vout, value, and status (with the status of the funding tx).
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/address/tb1q4kgratttzjvkxfmgd95z54qcq7y6hekdm3w56u/utxo"
Response
[
  {
    txid: "c404bc4ba89e9423ff772cb45268ba6fba8b713f809484c1216f1a657aafa088",
    vout: 1,
    status: {
      confirmed: true,
      block_height: 2086944,
      block_hash: "000000000000039a27007892b0f3ac646afa4eb3ef3d4a4e75e8bdf636b4d006",
      block_time: 1630159123
    },
    value: 1973787
  },
  ...
]
GET Address Validation addresses
Endpoint
GET /testnet/api/v1/validate-address/:address
Description
Returns whether an address is valid or not. Available fields: isvalid (boolean), address (string), scriptPubKey (string), isscript (boolean), iswitness (boolean), witness_version (numeric, optional), and witness_program (string, optional).
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/validate-address/tb1q4kgratttzjvkxfmgd95z54qcq7y6hekdm3w56u"
Response
{
  isvalid: true,
  address: "tb1q4kgratttzjvkxfmgd95z54qcq7y6hekdm3w56u",
  scriptPubKey: "0014ad903ead6b149963276869682a54180789abe6cd",
  isscript: false,
  iswitness: true,
  witness_version: 0,
  witness_program: "ad903ead6b149963276869682a54180789abe6cd"
}

Blocks

GET Block blocks
Endpoint
GET /testnet/api/block/:hash
Description
Returns details about a block.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/block/000000000000009c08dc77c3f224d9f5bbe335a78b996ec1e0701e065537ca81"
Response
{
  id: "000000000000009c08dc77c3f224d9f5bbe335a78b996ec1e0701e065537ca81",
  height: 2091140,
  version: 543162372,
  timestamp: 1630625150,
  tx_count: 2,
  size: 575,
  weight: 1865,
  merkle_root: "5d10d8d158bb8eb217d01fecc435bd10eda028043a913dc2bfe0ccf536a51cc9",
  previousblockhash: "0000000000000073f95d1fc0a93d449f82a754410c635e46264ec6c7c4d5741e",
  mediantime: 1630621997,
  nonce: 1600805744,
  bits: 436273151,
  difficulty: 16777216
}
GET Block Header blocks
Endpoint
GET /testnet/api/block/:hash/header
Description
Returns the hex-encoded block header.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/block/000000000000009c08dc77c3f224d9f5bbe335a78b996ec1e0701e065537ca81/header"
Response
040060201e74d5c4c7c64e26465e630c4154a7829f443da9c01f5df97300000000000000c91ca536f5cce0bfc23d913a0428a0ed10bd35c4ec1fd017b28ebb58d1d8105d7e5d3161ffff001a705b6a5f
GET Block Height blocks
Endpoint
GET /testnet/api/block-height/:height
Description
Returns the hash of the block currently at :height.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/block-height/2100100"
Response
000000000000001be62f15637e813e1d8ecdf26ee95d1820ef16db9bd8685985
GET Block Timestamp blocks
Endpoint
GET /testnet/api/v1/mining/blocks/timestamp/:timestamp
Description
Returns the height and the hash of the block closest to the given :timestamp.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/blocks/timestamp/1672531200"
Response
{
  height: 2413838,
  hash: "00000000000000082888e2353ea4baaea04d2e0e88f2ee054ad2bbcc1d6a5469",
  timestamp: "2022-12-31T23:57:26.000Z"
}
GET Block Raw blocks
Endpoint
GET /testnet/api/block/:hash/raw
Description
Returns the raw block representation in binary.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/block/000000000000009c08dc77c3f224d9f5bbe335a78b996ec1e0701e065537ca81/raw"
GET Block Status blocks
Endpoint
GET /testnet/api/block/:hash/status
Description
Returns the confirmation status of a block. Available fields: in_best_chain (boolean, false for orphaned blocks), next_best (the hash of the next block, only available for blocks in the best chain).
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/block/000000000000009c08dc77c3f224d9f5bbe335a78b996ec1e0701e065537ca81/status"
Response
{
  in_best_chain: true,
  height: 2091140,
  next_best: "0000000000000064152f2dc1e13bd70811fbcfa9c1660557233668b98b7b1c2b"
}
GET Block Tip Height blocks
Endpoint
GET /testnet/api/blocks/tip/height
Description
Returns the height of the last block.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/blocks/tip/height"
Response
2091168
GET Block Tip Hash blocks
Endpoint
GET /testnet/api/blocks/tip/hash
Description
Returns the hash of the last block.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/blocks/tip/hash"
Response
00000000000000a7a5227bb493ffb90d1e63e1c7e8cab2c9a2b98e9f2599a9a9
GET Block Transaction ID blocks
Endpoint
GET /testnet/api/block/:hash/txid/:index
Description
Returns the transaction at index :index within the specified block.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/block/000000000000004a3ff1faff12c446f711c650454ff8af7f41d1e8b2564dd74b/txid/1"
Response
7aede67cd9f48c2f77ca9112c27da2583ea41fbb391652777c44ef21d5b1656e
GET Block Transaction IDs blocks
Endpoint
GET /testnet/api/block/:hash/txids
Description
Returns a list of all txids in the block.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/block/000000000000004a3ff1faff12c446f711c650454ff8af7f41d1e8b2564dd74b/txids"
Response
[
  "b5d033f57045b76f2f29df0c2469be0153ecf2514717bccd8d52250b3e7ba781",
  "7aede67cd9f48c2f77ca9112c27da2583ea41fbb391652777c44ef21d5b1656e",
  "20827f9a8fb5ec5fa55ce5389b1d7520d7961272492dc3424874887daeea21dc"
]
GET Block Transactions blocks
Endpoint
GET /testnet/api/block/:hash/txs[/:start_index]
Description
Returns a list of transactions in the block (up to 25 transactions beginning at start_index). Transactions returned here do not have the status field, since all the transactions share the same block and confirmation status.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/block/000000000000004a3ff1faff12c446f711c650454ff8af7f41d1e8b2564dd74b/txs"
Response
[
  {
    txid: "b5d033f57045b76f2f29df0c2469be0153ecf2514717bccd8d52250b3e7ba781",
    version: 2,
    locktime: 0,
    vin: [],
    vout: [],
    size: 238,
    weight: 844,
    fee: 0,
    status: {
      confirmed: true,
      block_height: 2091173,
      block_hash: "000000000000004a3ff1faff12c446f711c650454ff8af7f41d1e8b2564dd74b",
      block_time: 1630635771
    }
  },
  ...
],
GET Blocks blocks
Endpoint
GET /testnet/api/v1/blocks[/:startHeight]
Description
Returns details on the past 15 blocks with fee and mining details in an extras field. If :startHeight is specified, the past 15 blocks before (and including) :startHeight are returned.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/blocks/2091187"
Response
[
   {
    "id": "00000000000000533f63df886281a9fd74da163e84a21445153ff480e5f57970",
    "timestamp": 1630641890,
    "height": 2091187,
    "version": 545259520,
    "bits": 436273151,
    "nonce": 309403673,
    "difficulty": 16777216,
    "merkle_root": "4d6df12a4af11bb928c7b2930e0a4d2c3e268c6dc6a07462943ad1c4b6b96468",
    "tx_count": 26,
    "size": 8390,
    "weight": 22985,
    "previousblockhash": "0000000000000079103da7d296e1480295df795b7379e7dffd27743e214b0b32",
    "extras": {
      "coinbaseRaw": "03b3e81f3a205468697320626c6f636b20776173206d696e65642077697468206120636172626f6e206e6567617469766520706f77657220736f75726365201209687a2009092009020de601d7986a040000",
      "medianFee": 1,
      "feeRange": [
        1,
        1,
        1,
        1,
        5,
        56,
        5053
      ],
      "reward": 10547567,
      "totalFees": 781942,
      "avgFee": 31277,
      "avgFeeRate": 143,
      "pool": {
        "id": 137,
        "name": "Unknown",
        "slug": "unknown"
      }
    }
  },
  ...
]
GET Blocks (Bulk) blocks
Endpoint
GET /testnet/api/v1/blocks-bulk/:minHeight[/:maxHeight]
Description

Returns details on the range of blocks between :minHeight and :maxHeight, inclusive, up to 10 blocks. If :maxHeight is not specified, it defaults to the current tip.

To return data for more than 10 blocks, consider becoming an enterprise sponsor.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/blocks-bulk/100000/100000"
Response
[
  {
    "height": 100000,
    "hash": "00000000009e2958c15ff9290d571bf9459e93b19765c6801ddeccadbb160a1e",
    "timestamp": 1376123972,
    "median_timestamp": 1677396660,
    "previous_block_hash": "000000004956cc2edd1a8caa05eacfa3c69f4c490bfc9ace820257834115ab35",
    "difficulty": 271.7576739288896,
    "header": "0200000035ab154183570282ce9afc0b494c9fc6a3cfea05aa8c1add2ecc56490000000038ba3d78e4500a5a7570dbe61960398add4410d278b21cd9708e6d9743f374d544fc055227f1001c29c1ea3b",
    "version": 2,
    "bits": 469823783,
    "nonce": 1005240617,
    "size": 221,
    "weight": 884,
    "tx_count": 1,
    "merkle_root": "d574f343976d8e70d91cb278d21044dd8a396019e6db70755a0a50e4783dba38",
    "reward": 5000000000,
    "total_fee_amt": 0,
    "avg_fee_amt": 0,
    "median_fee_amt": 0,
    "fee_amt_percentiles": {
      "min": 0,
      "perc_10": 0,
      "perc_25": 0,
      "perc_50": 0,
      "perc_75": 0,
      "perc_90": 0,
      "max": 0
    },
    "avg_fee_rate": 0,
    "median_fee_rate": 0,
    "fee_rate_percentiles": {
      "min": 0,
      "perc_10": 0,
      "perc_25": 0,
      "perc_50": 0,
      "perc_75": 0,
      "perc_90": 0,
      "max": 0
    },
    "total_inputs": 0,
    "total_input_amt": null,
    "total_outputs": 1,
    "total_output_amt": 0,
    "segwit_total_txs": 0,
    "segwit_total_size": 0,
    "segwit_total_weight": 0,
    "avg_tx_size": 0,
    "utxoset_change": 1,
    "utxoset_size": null,
    "coinbase_raw": "03a08601000427f1001c046a510100522cfabe6d6d0000000000000000000068692066726f6d20706f6f6c7365727665726aac1eeeed88",
    "coinbase_address": "mtkbaiLiUH3fvGJeSzuN3kUgmJzqinLejJ",
    "coinbase_signature": "OP_DUP OP_HASH160 OP_PUSHBYTES_20 912e2b234f941f30b18afbb4fa46171214bf66c8 OP_EQUALVERIFY OP_CHECKSIG",
    "coinbase_signature_ascii": " �'ñjQR,ú¾mmhi from poolserverj¬îí�",
    "pool_slug": "unknown",
    "orphans": []
  }
]

Mining

GET Mining Pools mining
Endpoint
GET /testnet/api/v1/mining/pools[/:timePeriod]
Description
Returns a list of all known mining pools ordered by blocks found over the specified trailing :timePeriod.

Leave :timePeriod unspecified to get all available data, or specify one of the following values: 24h, 3d, 1w, 1m, 3m, 6m, 1y, 2y, 3y.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/pools/3y"
Response
{
  "pools": [
    {
      "poolId": 112,
      "name": "SBI Crypto",
      "link": "https://sbicrypto.com",
      "blockCount": 26243,
      "rank": 2,
      "emptyBlocks": 11272,
      "slug": "sbicrypto"
    },
    {
      "poolId": 8,
      "name": "Huobi.pool",
      "link": "https://www.hpt.com/",
      "blockCount": 12134,
      "rank": 3,
      "emptyBlocks": 6096,
      "slug": "huobipool"
    },
    ...
  ],
  "blockCount": 2226180,
  "lastEstimatedHashrate": 602244182177430.8
}
GET Mining Pool mining
Endpoint
GET /testnet/api/v1/mining/pool/:slug
Description

Returns details about the mining pool specified by :slug.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/pool/binancepool"
Response
{
  "pool": {
    "id": 105,
    "name": "Binance Pool",
    "link": "https://pool.binance.com/",
    "addresses": [],
    "regexes": [
      "/Binance/",
      "binance"
    ],
    "slug": "binancepool"
  },
  "blockCount": {
    "all": 2,
    "24h": 1,
    "1w": 1
  },
  "blockShare": {
    "all": 8.984160924290476e-7,
    "24h": 0.004524886877828055,
    "1w": 0.0005089058524173028
  },
  "estimatedHashrate": 2617854550633.5283,
  "reportedHashrate": null
}
GET Mining Pool Hashrates mining
Endpoint
GET /testnet/api/v1/mining/hashrate/pools/[:timePeriod]
Description

Returns average hashrates (and share of total hashrate) of mining pools active in the specified trailing :timePeriod, in descending order of hashrate.

Leave :timePeriod unspecified to get all available data, or specify any of the following time periods: 1m, 3m, 6m, 1y, 2y, 3y.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/hashrate/pools/1y"
Response
[
  {
    "timestamp": 1621814400,
    "avgHashrate": 395655036336662.7,
    "share": 1,
    "poolName": "Unknown"
  },
  {
    "timestamp": 1621814400,
    "avgHashrate": 0,
    "share": 0,
    "poolName": "Binance Pool"
  }
]
GET Mining Pool Hashrate mining
Endpoint
GET /testnet/api/v1/mining/pool/:slug/hashrate
Description
Returns all known hashrate data for the mining pool specified by :slug. Hashrate values are weekly averages.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/pool/kncminer/hashrate"
Response
[
  {
    "timestamp": 1400457600,
    "avgHashrate": 23504290056.20675,
    "share": 0.21875,
    "poolName": "KnCMiner"
  },
  {
    "timestamp": 1401062400,
    "avgHashrate": 22880315827.385838,
    "share": 0.301661,
    "poolName": "KnCMiner"
  },
  {
    "timestamp": 1401667200,
    "avgHashrate": 65314000516.18979,
    "share": 0.774853,
    "poolName": "KnCMiner"
  },
  ...
]
GET Mining Pool Blocks mining
Endpoint
GET /testnet/api/v1/mining/pool/:slug/blocks/[:blockHeight]
Description
Returns past 10 blocks mined by the specified mining pool (:slug) before the specified :blockHeight. If no :blockHeight is specified, the mining pool's 10 most recent blocks are returned.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/pool/bitcoincom/blocks/2226000"
Response
[
  {
    "id": "00000000000000ed428cdb70dfdeb0f3927912131cb96e7b1fe274b1bb1181b2",
    "timestamp": 1582018014,
    "height": 1666150,
    "version": 541065216,
    "bits": 436312585,
    "nonce": 21973352,
    "difficulty": 10474471.99230249,
    "merkle_root": "541456efe41e5730a563475e0c5e2007ee660f1d86d9778bfc164d73c59fd605",
    "tx_count": 382,
    "size": 126201,
    "weight": 331851,
    "previousblockhash": "00000000005a0843cc88b09cf6def15e4dc8fe38ab5cf3ad890f34a2df497004",
    "extras": {
      "coinbaseRaw": "03666c19706f6f6c2e626974636f696e2e636f6d010000022583010000000000",
      "medianFee": 1,
      "reward": 39726335,
      "totalFees": 663835,
      "pool": {
        "id": 12
      }
    }
  },
  {
    "id": "00000000000000af90f51e48cb29fdecc62e9961c5e27aca1a4ae8213aae1954",
    "timestamp": 1579793108,
    "height": 1663620,
    "version": 541065216,
    "bits": 436295134,
    "nonce": 1762790676,
    "difficulty": 12563071.03178775,
    "merkle_root": "02d02afea666f08bab5851de541d0570c71a6cd8be358c28952c52d57b7afad4",
    "tx_count": 24,
    "size": 9562,
    "weight": 23848,
    "previousblockhash": "000000000000013bbdbc0fef53a5b4b2af02880a6f56f7945de071b71d51123a",
    "extras": {
      "coinbaseRaw": "03846219706f6f6c2e626974636f696e2e636f6d01000065f224020000000000",
      "medianFee": 1,
      "reward": 39547121,
      "totalFees": 484621,
      "pool": {
        "id": 12
      }
    }
  },
  ...
]
GET Hashrate mining
Endpoint
GET /testnet/api/v1/mining/hashrate/[:timePeriod]
Description

Returns network-wide hashrate and difficulty figures over the specified trailing :timePeriod:

  • Current (real-time) hashrate
  • Current (real-time) difficulty
  • Historical daily average hashrates
  • Historical difficulty

Valid values for :timePeriod are 1m, 3m, 6m, 1y, 2y, 3y. If no time interval is specified, all available data is returned.

Be sure that INDEXING_BLOCKS_AMOUNT is set properly in your backend config so that enough blocks are indexed to properly serve your request.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/hashrate/3d"
Response
{
  "hashrates": [
    {
      "timestamp": 1652745600,
      "avgHashrate": 385829751259101.6
    },
    {
      "timestamp": 1652832000,
      "avgHashrate": 657984995406460.8
    },
    {
      "timestamp": 1652918400,
      "avgHashrate": 510731129917436.6
    }
  ],
  "difficulty": [
    {
      "timestamp": 1652691434,
      "difficulty": 26119369.29706616,
      "height": 2225402
    }
  ],
  "currentHashrate": 781149965464814.4,
  "currentDifficulty": 55580658.55098472
}
GET Difficulty Adjustments mining
Endpoint
GET /testnet/api/v1/mining/difficulty-adjustments/[:interval]
Description

Returns the record of difficulty adjustments over the specified trailing :interval:

  • Block timestamp
  • Block height
  • Difficulty
  • Difficulty change

If no time interval is specified, all available data is returned.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/difficulty-adjustments/1m"
Response
[
  [
    1703429523,
    2544008,
    105074715.9955905,
    105075000
  ],
  [
    1703426009,
    2544005,
    1,
    0
  ],
  [
    1703422944,
    2544000,
    105074715.9955905,
    105075000
  ],
  ...
]
GET Reward Stats mining
Endpoint
GET /testnet/api/v1/mining/reward-stats/:blockCount
Description
Returns block reward and total transactions confirmed for the past :blockCount blocks.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/reward-stats/100"
Response
{
  "startBlock": 2226086,
  "endBlock": 2226185,
  "totalReward": "513462793",
  "totalFee": "25181593",
  "totalTx": "2366"
}
GET Block Fees mining
Endpoint
GET /testnet/api/v1/mining/blocks/fees/:timePeriod
Description

Returns average total fees for blocks in the specified :timePeriod, ordered oldest to newest. :timePeriod can be any of the following: 24h, 3d, 1w, 1m, 3m, 6m, 1y, 2y, 3y.

For 24h and 3d time periods, every block is included and fee amounts are exact (not averages). For the 1w time period, fees may be averages depending on how fast blocks were found around a particular timestamp. For other time periods, fees are averages.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/blocks/fees/1w"
Response
[
  {
    "avgHeight": 2224253,
    "timestamp": 1652346420,
    "avgFees": 211686
  },
  {
    "avgHeight": 2224254,
    "timestamp": 1652346850,
    "avgFees": 2565952
  },
  ...
]
GET Block Rewards mining
Endpoint
GET /testnet/api/v1/mining/blocks/rewards/:timePeriod
Description

Returns average block rewards for blocks in the specified :timePeriod, ordered oldest to newest. :timePeriod can be any of the following: 24h, 3d, 1w, 1m, 3m, 6m, 1y, 2y, 3y.

For 24h and 3d time periods, every block is included and block rewards are exact (not averages). For the 1w time period, block rewards may be averages depending on how fast blocks were found around a particular timestamp. For other time periods, block rewards are averages.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/blocks/rewards/1d"
Response
[
  {
    "avgHeight": 12,
    "timestamp": 1296689648,
    "avgRewards": 5000000000
  },
  {
    "avgHeight": 269,
    "timestamp": 1296717674,
    "avgRewards": 5000091820
  },
  ...
]
GET Block Feerates mining
Endpoint
GET /testnet/api/v1/mining/blocks/fee-rates/:timePeriod
Description
Returns average feerate percentiles for blocks in the specified :timePeriod, ordered oldest to newest. :timePeriod can be any of the following: 24h, 3d, 1w, 1m, 3m, 6m, 1y, 2y, 3y.

For 24h and 3d time periods, every block is included and percentiles are exact (not averages). For the 1w time period, percentiles may be averages depending on how fast blocks were found around a particular timestamp. For other time periods, percentiles are averages.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/blocks/fee-rates/1m"
Response
[
  {
    "avgHeight": 2196306,
    "timestamp": 1650360168,
    "avgFee_0": 1,
    "avgFee_10": 1,
    "avgFee_25": 1,
    "avgFee_50": 1,
    "avgFee_75": 2,
    "avgFee_90": 28,
    "avgFee_100": 2644
  },
  {
    "avgHeight": 2196308,
    "timestamp": 1650361209,
    "avgFee_0": 1,
    "avgFee_10": 1,
    "avgFee_25": 1,
    "avgFee_50": 4,
    "avgFee_75": 12,
    "avgFee_90": 65,
    "avgFee_100": 102
  },
  ...
]
GET Block Sizes and Weights mining
Endpoint
GET /testnet/api/v1/mining/blocks/sizes-weights/:timePeriod
Description

Returns average size (bytes) and average weight (weight units) for blocks in the specified :timePeriod, ordered oldest to newest. :timePeriod can be any of the following: 24h, 3d, 1w, 1m, 3m, 6m, 1y, 2y, 3y.

For 24h and 3d time periods, every block is included and figures are exact (not averages). For the 1w time period, figures may be averages depending on how fast blocks were found around a particular timestamp. For other time periods, figures are averages.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/blocks/sizes-weights/3y"
Response
{
  "sizes": [
    {
      "avgHeight": 1517188,
      "timestamp": 1558262730,
      "avgSize": 25089
    },
    {
      "avgHeight": 1517275,
      "timestamp": 1558290933,
      "avgSize": 21679
    },
    ...
  ],
  "weights": [
    {
      "avgHeight": 1517188,
      "timestamp": 1558262730,
      "avgWeight": 74921
    },
    {
      "avgHeight": 1517275,
      "timestamp": 1558290933,
      "avgWeight": 65164
    },
    ...
  ]
}
GET Block Predictions mining
Endpoint
GET /testnet/api/v1/mining/blocks/predictions/:timePeriod
Description

Returns average block health in the specified :timePeriod, ordered oldest to newest. :timePeriod can be any of the following: 24h, 3d, 1w, 1m, 3m, 6m, 1y, 2y, 3y.

For 24h and 3d time periods, every block is included and figures are exact (not averages). For the 1w time period, figures may be averages depending on how fast blocks were found around a particular timestamp. For other time periods, figures are averages.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/blocks/predictions/3y"
Response
[
  [
    1687246773,
    2429248,
    100
  ],
  [
    1687285500,
    2438380,
    100
  ],
  [
    1687342820,
    2438467,
    100
  ],
  [
    1687372143,
    2438522,
    100
  ],
  ...
]
GET Block Audit Score mining
Endpoint
GET /testnet/api/v1/mining/blocks/audit/score/:blockHash
Description
Returns the block audit score for the specified :blockHash. Available fields: hash, matchRate, expectedFees, and expectedWeight.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/blocks/audit/score/000000000000025a66f30a181e438b9f65ef33cec3014b7a4ff4c7578289cd6e"
Response
{
  hash: "000000000000025a66f30a181e438b9f65ef33cec3014b7a4ff4c7578289cd6e",
  matchRate: 100,
  expectedFees: 579169,
  expectedWeight: 12997
}
GET Blocks Audit Scores mining
Endpoint
GET /testnet/api/v1/mining/blocks/audit/scores/:startHeight
Description
Returns blocks audit score for the past 16 blocks. If :startHeight is specified, the past 15 blocks before (and including) :startHeight are returned. Available fields: hash, matchRate, expectedFees, and expectedWeight.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/mining/blocks/audit/scores/2566570"
Response
[
  {
    hash: "00000000000002e7e96e7b5ee04a5fbb3ef9575a9f4a99effb32a8a89d9d2f19",
    matchRate: 100,
    expectedFees: 964677,
    expectedWeight: 24959
  },
  {
    hash: "00000000000003bd3962806d0e06d9982eb2e06aeba912687b2bac3668db32aa",
    matchRate: 100,
    expectedFees: 631200,
    expectedWeight: 15516
  },
  ...
]
GET Block Audit Summary mining
Endpoint
GET /testnet/api/v1/block/:blockHash/audit-summary
Description
Returns the block audit summary for the specified :blockHash. Available fields: height, id, timestamp, template, missingTxs, addedTxs, freshTxs, sigopTxs, fullrbfTxs, acceleratedTxs, matchRate, expectedFees, and expectedWeight.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/block/000000000000007cfba94e051326b3546c968a188a7e12e340a78cefc586bfe3/audit-summary"
Response
{
  height: 2566708,
  id: "000000000000007cfba94e051326b3546c968a188a7e12e340a78cefc586bfe3",
  timestamp: 1703684826,
  template: [
    {
      txid: "6556caa3c6bff537f04837a6f7182dd7a253f31a46de4f21dec9584720156d35",
      fee: 109707,
      vsize: 264.75,
      value: 456855,
      rate: 414.37960339943345,
      flags: 9895621445642
    },
    {
      txid: "53b7743b8cfa0108dbcdc7c2f5e661b9d8f56216845a439449d7f9dfc466b147",
      fee: 74640,
      vsize: 215.5,
      value: 19063915,
      rate: 348.5338491295938,
      flags: 1099528491017
    },
    ...
  ],
  missingTxs: [
    "8f2eae756119e43054ce1014a06e81d612113794d8b519e6ff393d7e0023396a",
    "012b44b0fc0fddc549a056c85850f03a83446c843504c588cd5829873b30f5a9",
    ...
  ],
  addedTxs: [],
  freshTxs: [
    "af36a8b88f6c19f997614dfc8a41395190eaf496a49e8db393dacb770999abd5",
    "fdfa272c8fe069573b964ddad605d748d8c737e94dfcd09bddaae0ee0a2445df",
    ...
  ],
  sigopTxs: [],
  fullrbfTxs: [],
  acceleratedTxs: [],
  matchRate: 86.96,
  expectedFees: 1541639,
  expectedWeight: 26425
}

Fees

GET Mempool Blocks Fees fees
Endpoint
GET /testnet/api/v1/fees/mempool-blocks
Description
Returns current mempool as projected blocks.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/fees/mempool-blocks"
Response
[
  {
    blockSize: 2871,
    blockVSize: 2377.5,
    nTx: 11,
    totalFees: 3499,
    medianFee: 1.1799410029498525,
    feeRange: [
      1.00374531835206,
      1.00374531835206,
      1.0046860356138707,
      1.1799410029498525,
      1.183431952662722,
      1.3274336283185841,
      1.3995037220843674,
      5.0271041369472185
    ]
  }
]

Mempool

GET Mempool mempool
Endpoint
GET /testnet/api/mempool
Description
Returns current mempool backlog statistics.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/mempool"
Response
{
  count: 16,
  vsize: 2692,
  total_fee: 46318,
  fee_histogram: [
    [
      1.0071429,
      2692
    ]
  ]
}
GET Mempool Transaction IDs mempool
Endpoint
GET /testnet/api/mempool/txids
Description
Get the full list of txids in the mempool as an array. The order of the txids is arbitrary and does not match bitcoind.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/mempool/txids"
Response
[
  "af04a3e8b7bd49217165435e2717b6ed977cde9c0f6f2a5813c4c39eb53748af",
  "d4c4989617e9af40518f7846f98e98e4a187bc29fb95542c9aa469af159c61e4",
  "c4c0630b18e910be0a70ebd5d4897b379168b0f357a6536188a28e38d2cf8b43",
  "c6c9c44ca17ff8c1ebfe27978e57277be6098f0fb5129840370c013fe503db24",
  ...
]
GET Mempool Recent mempool
Endpoint
GET /testnet/api/mempool/recent
Description
Get a list of the last 10 transactions to enter the mempool. Each transaction object contains simplified overview data, with the following fields: txid, fee, vsize, and value.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/mempool/recent"
Response
[
  {
    txid: "1fc5098fe3378828a890fa5144883cdd1411d9cdbb1af365c20e72503b11dc81",
    fee: 221,
    vsize: 201,
    value: 944960
  },
  ...
]
GET Mempool RBF Transactions mempool
Endpoint
GET /testnet/api/v1/replacements
Description
Returns the list of mempool transactions that are part of a RBF chain.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/replacements"
Response
[
  {
    tx: {
      txid: "7766e3f008011b776905f96fcad9d4a7b75d1b368d1e77db2901254f1fa8357d",
      fee: 9101,
      vsize: 317,
      value: 147706698,
      rate: 28.709779179810724,
      rbf: true,
      fullRbf: false
    },
    time: 1703331325,
    fullRbf: false,
    replaces: [
      {
        tx: {
          txid: "43055f6e5750c6aa0c2214e59e99f367398d96bde935e7666c3e648d249a4e40",
          fee: 7000,
          vsize: 317,
          value: 147708799,
          rate: 22.082018927444796,
          rbf: true
        },
        time: 1703331154,
        interval: 171,
        fullRbf: false,
        replaces: []
      }
    ]
  },
  ...
]
GET Mempool Full RBF Transactions mempool
Endpoint
GET /testnet/api/v1/fullrbf/replacements
Description
Returns the list of mempool transactions that are part of a Full-RBF chain.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/fullrbf/replacements"
Response
[
  {
    tx: {
      txid: "25e2bfaf0e0821e5cb71f11e460b2f71e1d5a3755015de42544afa5fbad6d443",
      fee: 24436,
      vsize: 297.75,
      value: 273418,
      rate: 82.0688497061293,
      rbf: false,
      fullRbf: true
    },
    time: 1703409882,
    fullRbf: true,
    replaces: [
      {
        tx: {
          txid: "07d501e8ad4a25f07f3ced0a6102741720f710765e6fdb2eb966ba0df657997a",
          fee: 24138,
          vsize: 297.75,
          value: 273716,
          rate: 81.06801007556675,
          rbf: false
        },
        time: 1703409853,
        interval: 29,
        fullRbf: true,
        replaces: []
      }
    ]
  },
  ...
]

Transactions

GET Children Pay for Parent transactions
Endpoint

GET /testnet/api/v1/cpfp

Description
Returns the ancestors and the best descendant fees for a transaction.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/cpfp/txid"
GET Transaction transactions
Endpoint
GET /testnet/api/tx/:txid
Description
Returns details about a transaction. Available fields: txid, version, locktime, size, weight, fee, vin, vout, and status.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/tx/eefbafa4006e77099db059eebe14687965813283e5754d317431d9984554735d"
Response
{
  txid: "eefbafa4006e77099db059eebe14687965813283e5754d317431d9984554735d",
  version: 2,
  locktime: 2091198,
  vin: [],
  vout: [],
  size: 222,
  weight: 561,
  fee: 16332,
  status: {
    confirmed: true,
    block_height: 2091199,
    block_hash: "000000000000004d36632fda8180ff16855d606e5515aab0750d9d4fe55fe7d6",
    block_time: 1630648992
  }
}
GET Transaction Hex transactions
Endpoint
GET /testnet/api/tx/:txid/hex
Description
Returns a transaction serialized as hex.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/tx/eefbafa4006e77099db059eebe14687965813283e5754d317431d9984554735d/hex"
Response
0200000000010146c398e70cceaf9d8f734e603bc53e4c4c0605ab46cb1b5807a62c90f5aed50d0100000000feffffff023c0fc10c010000001600145033f65b590f2065fe55414213f1d25ab20b6c4f487d1700000000001600144b812d5ef41fc433654d186463d41b458821ff740247304402202438dc18801919baa64eb18f7e925a...
GET Transaction Merkleblock Proof transactions
Endpoint
GET /testnet/api/tx/:txid/merkleblock-proof
Description
Returns a merkle inclusion proof for the transaction using bitcoind's merkleblock format.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/tx/eefbafa4006e77099db059eebe14687965813283e5754d317431d9984554735d/merkleblock-proof"
Response
0000602002bf77bbb098f90f149430c314e71ef4e2671ea5e04a2503e0000000000000000406ffb54f2925360aae81bd3199f456928bbe6ae83a877902da9d9ffb08215da0ba3161ffff001a545a850bb80000000906e0c62f68fdf4865a46889e2e12d66f03cc537225d612aa77b08a38936b4d435d73544598d93174314d75e5833...
GET Transaction Merkle Proof transactions
Endpoint
GET /testnet/api/tx/:txid/merkle-proof
Description
Returns a merkle inclusion proof for the transaction using Electrum's blockchain.transaction.get_merkle format.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/tx/eefbafa4006e77099db059eebe14687965813283e5754d317431d9984554735d/merkle-proof"
Response
{
  block_height: 2091199,
  merkle: [
    "434d6b93388ab077aa12d6257253cc036fd6122e9e88465a86f4fd682fc6e006",
    "bd9af28e56cf6731e78ee1503a65d9cc9b15c148daa474e71e085176f48996ac",
    "605f6f83423ef3b86623927ef2d9dcb0f8d9e40a8132217c2fa0910b84488ec7",
    "10b7ef06ef0756823dbf39dea717be397e7ccb49bbefc5cfc45e6f9d58793baf",
    "19183ceae11796a9b1d0893e0561870bbce4d060c9547b1e91ad8b34eb3d5001",
    "1b16723739522955422b4286b4d8620d2a704b6997e6bbd809d151b8d8d64611",
    "6f8496469b19dd35871684332dfd3fc0205d83d2c58c44ebdae068542bc951f6",
    "e0d2733bd7bce4e5690b71bc8f7cedb1edbc49a5ff85c3678ecdec894ea1c023"
  ],
  pos: 1
}
GET Transaction Outspend transactions
Endpoint
GET /testnet/api/tx/:txid/outspend/:vout
Description
Returns the spending status of a transaction output. Available fields: spent (boolean), txid (optional), vin (optional), and status (optional, the status of the spending tx).
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/tx/eefbafa4006e77099db059eebe14687965813283e5754d317431d9984554735d/outspend/0"
Response
{
  spent: true,
  txid: "37e867526abb7cde3f64f86f60b42bee1f989aa8514730ae2e741dd05bbc286b",
  vin: 0,
  status: {
    confirmed: true,
    block_height: 2091199,
    block_hash: "000000000000004d36632fda8180ff16855d606e5515aab0750d9d4fe55fe7d6",
    block_time: 1630648992
  }
}
GET Transaction Outspends transactions
Endpoint
GET /testnet/api/tx/:txid/outspends
Description
Returns the spending status of all transaction outputs.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/tx/eefbafa4006e77099db059eebe14687965813283e5754d317431d9984554735d/outspends"
Response
[
  {
    spent: true,
    txid: "37e867526abb7cde3f64f86f60b42bee1f989aa8514730ae2e741dd05bbc286b",
    vin: 0,
    status: {
      confirmed: true,
      block_height: 2091199,
      block_hash: "000000000000004d36632fda8180ff16855d606e5515aab0750d9d4fe55fe7d6",
      block_time: 1630648992
    }
  },
  {
    spent: false
  }
]
GET Transaction Raw transactions
Endpoint
GET /testnet/api/tx/:txid/raw
Description
Returns a transaction as binary data.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/tx/eefbafa4006e77099db059eebe14687965813283e5754d317431d9984554735d/raw"
GET Transaction RBF History transactions
Endpoint
GET /testnet/apiv1/tx/:txId/rbf
Description
Returns the RBF tree history of a transaction.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/tx/5faaa30530bee55de8cc896bdf48f803c2274a94bffc2842386bec2a8bf7a813/rbf"
Response
{
  replacements: {
    tx: {
      txid: "5faaa30530bee55de8cc896bdf48f803c2274a94bffc2842386bec2a8bf7a813",
      fee: 9101,
      vsize: 318,
      value: 148022607,
      rate: 28.61949685534591,
      rbf: true,
      fullRbf: false,
      mined: true
    },
    time: 1703322610,
    fullRbf: false,
    replaces: [
      {
        tx: {
          txid: "06e69641fa889fe9148669ac2904929004e7140087bedaec8c8e4e05aabded52",
          fee: 7000,
          vsize: 318,
          value: 148024708,
          rate: 22.0125786163522,
          rbf: true
        },
        time: 1703322602,
        interval: 8,
        fullRbf: false,
        replaces: []
      }
    ],
    mined: true
  },
  replaces: [
    "06e69641fa889fe9148669ac2904929004e7140087bedaec8c8e4e05aabded52"
  ]
}
GET Transaction Status transactions
Endpoint
GET /testnet/api/tx/:txid/status
Description
Returns the confirmation status of a transaction. Available fields: confirmed (boolean), block_height (optional), and block_hash (optional).
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/tx/eefbafa4006e77099db059eebe14687965813283e5754d317431d9984554735d/status"
Response
{
  confirmed: false
}
GET Transaction Times transactions
Endpoint
GET /testnet/api/v1/transaction-times
Description
Returns the timestamps when a list of unconfirmed transactions was initially observed in the mempool. If a transaction is not found in the mempool or has been mined, the timestamp will be 0.
Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/transaction-times?txId[]=25e7a95ebf10ed192ee91741653d8d970ac88f8e0cd6fb14cc6c7145116d3964&txId[]=1e158327e52acae35de94962e60e53fc70f6b175b0cfc3e2058bed4b895203b4"
Response
[1703267563,1703267322]
POST Transaction transactions
Endpoint
POST /api/tx
Description
Broadcast a raw transaction to the network. The transaction should be provided as hex in the request body. The txid will be returned on success.
Code Example
curl -X POST -sSLd "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" "https://mempool.emzy.de/testnet/api/tx"

Lightning

GET Network Stats lightning
Endpoint
GET /testnet/api/v1/lightning/statistics/:interval
Description

Returns network-wide stats such as total number of channels and nodes, total capacity, and average/median fee figures.

Pass one of the following for :interval: latest, 24h, 3d, 1w, 1m, 3m, 6m, 1y, 2y, 3y.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/statistics/latest"
Response
{
  "latest": {
    "id": 13,
    "added": "2022-08-30T00:00:00.000Z",
    "channel_count": 5101,
    "node_count": 1806,
    "total_capacity": 43341092977,
    "tor_nodes": 288,
    "clearnet_nodes": 736,
    "unannounced_nodes": 656,
    "avg_capacity": 8496588,
    "avg_fee_rate": 354,
    "avg_base_fee_mtokens": 1183,
    "med_capacity": 1148313,
    "med_fee_rate": 1,
    "med_base_fee_mtokens": 1000,
    "clearnet_tor_nodes": 126
  }
}
GET Nodes/Channels lightning
Endpoint
GET /testnet/api/v1/lightning/search?searchText=:query
Description

Returns Lightning nodes and channels that match a full-text, case-insensitive search :query across node aliases, node pubkeys, channel IDs, and short channel IDs.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/search?searchText=lnd"
Response
{
  "nodes": [
    {
      "public_key": "02be8f360e57600486b93dd33ea0872a4e14a259924ba4084f27d693a77d151158",
      "alias": "lndus1.dev.zaphq.io",
      "capacity": 762968876,
      "channels": 27
    },
    {
      "public_key": "028c3640c57ffe47eb41db8225968833c5032f297aeba98672d6f7037090d59e3f",
      "alias": "lndus0.next.zaphq.io",
      "capacity": 641040063,
      "channels": 26
    }
  ],
  "channels": []
}
GET Nodes in Country lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/country/:country
Description

Returns a list of Lightning nodes running on clearnet in the requested :country, where :country is an ISO Alpha-2 country code.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/country/ch"
Response
{
  "country": {
    "de": "Schweiz",
    "en": "Switzerland",
    "es": "Suiza",
    "fr": "Suisse",
    "ja": "スイス連邦",
    "pt-BR": "Suíça",
    "ru": "Швейцария",
    "zh-CN": "瑞士"
  },
  "nodes": [
    {
      "public_key": "0200a7f20e51049363cb7f2a0865fe072464d469dca0ac34c954bb3d4b552b6e95",
      "capacity": 94802991,
      "channels": 15,
      "alias": "looptest",
      "first_seen": 1601298108,
      "updated_at": 1661857089,
      "city": {
        "de": "Thun",
        "en": "Thun",
        "es": "Thun",
        "fr": "Thoune",
        "ja": "トゥーン",
        "pt-BR": "Tune",
        "ru": "Тун",
        "zh-CN": "图恩"
      },
      "country": {
        "de": "Schweiz",
        "en": "Switzerland",
        "es": "Suiza",
        "fr": "Suisse",
        "ja": "スイス連邦",
        "pt-BR": "Suíça",
        "ru": "Швейцария",
        "zh-CN": "瑞士"
      },
      "iso_code": "CH",
      "subdivision": {
        "de": "Bern",
        "en": "Bern",
        "fr": "Berne"
      }
    },
    ...
  ]
}
GET Node Stats Per Country lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/countries
Description

Returns aggregate capacity and number of clearnet nodes per country. Capacity figures are in satoshis.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/countries"
Response
[
  {
    "name": {
      "de": "Vereinigte Staaten",
      "en": "United States",
      "es": "Estados Unidos",
      "fr": "États Unis",
      "ja": "アメリカ",
      "pt-BR": "EUA",
      "ru": "США",
      "zh-CN": "美国"
    },
    "iso": "US",
    "count": 304,
    "share": 37.95,
    "capacity": "23906225936"
  },
  {
    "name": {
      "de": "Deutschland",
      "en": "Germany",
      "es": "Alemania",
      "fr": "Allemagne",
      "ja": "ドイツ連邦共和国",
      "pt-BR": "Alemanha",
      "ru": "Германия",
      "zh-CN": "德国"
    },
    "iso": "DE",
    "count": 85,
    "share": 10.61,
    "capacity": "1878052329"
  },
  ...
]
GET ISP Nodes lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/isp/:isp
Description

Returns a list of nodes hosted by a specified :isp, where :isp is an ISP's ASN.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/isp/16509"
Response
{
  "isp": "Amazon.com",
  "nodes": [
    {
      "public_key": "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134",
      "capacity": 2041664924,
      "channels": 70,
      "alias": "endurance",
      "first_seen": 1566809576,
      "updated_at": 1660926529,
      "city": null,
      "country": {
        "de": "Vereinigte Staaten",
        "en": "United States",
        "es": "Estados Unidos",
        "fr": "États Unis",
        "ja": "アメリカ",
        "pt-BR": "EUA",
        "ru": "США",
        "zh-CN": "美国"
      },
      "iso_code": "US",
      "subdivision": null
    },
    ...
  ]
}
GET Node Stats Per ISP lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/isp-ranking
Description

Returns aggregate capacity, number of nodes, and number of channels per ISP. Capacity figures are in satoshis.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/isp-ranking"
Response
{
  "clearnetCapacity": 21714967205,
  "torCapacity": 1183591190,
  "unknownCapacity": 965032372,
  "ispRanking": [
    [
      "14080",                  //ASN
      "Telmex Colombia S.A.",   //ISP Name
      220063321,                //aggregate capacity, in sats
      98,                       //total number of channels
      1                         //number of nodes
    ],
    [
      "16509,14618",
      "Amazon.com",
      5590657952,
      445,
      41
    ],
    ...
  ]
}
GET Top 100 Nodes lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/rankings
Description

Returns two lists of the top 100 nodes: one ordered by liquidity (aggregate channel capacity) and the other ordered by connectivity (number of open channels).

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/rankings"
Response
{
  "topByCapacity": [
    {
      "publicKey": "038863cf8ab91046230f561cd5b386cbff8309fa02e3f0c3ed161a3aeb64a643b9",
      "alias": "aranguren.org",
      "capacity": 17155095532
    },
    {
      "publicKey": "0225ff2ae6a3d9722b625072503c2f64f6eddb78d739379d2ee55a16b3b0ed0a17",
      "alias": "STRANGEIRON",
      "capacity": 7038263480
    },
    ...
  ],
  "topByChannels": [
    {
      "publicKey": "038863cf8ab91046230f561cd5b386cbff8309fa02e3f0c3ed161a3aeb64a643b9",
      "alias": "aranguren.org",
      "channels": 489
    },
    {
      "publicKey": "030425d8babe3ab6dfc065e69dd8b10ce6738c86ea7d634324c913e21620fa5eaf",
      "alias": "MTest441",
      "channels": 258
    },
    ...
  ]
}
GET Top 100 Nodes by Liquidity lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/rankings/liquidity
Description

Returns a list of the top 100 nodes by liquidity (aggregate channel capacity).

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/rankings/liquidity"
Response
[
  {
    "publicKey": "038863cf8ab91046230f561cd5b386cbff8309fa02e3f0c3ed161a3aeb64a643b9",
    "alias": "aranguren.org",
    "capacity": 17155095532,
    "channels": 489,
    "firstSeen": 1521457251,
    "updatedAt": 1662035238,
    "city": {
      "de": "Melbourne",
      "en": "Melbourne",
      "es": "Melbourne",
      "fr": "Melbourne",
      "ja": "メルボルン",
      "pt-BR": "Melbourne",
      "ru": "Мельбурн",
      "zh-CN": "墨尔本"
    },
    "country": {
      "de": "Australien",
      "en": "Australia",
      "es": "Australia",
      "fr": "Australie",
      "ja": "オーストラリア",
      "pt-BR": "Austrália",
      "ru": "Австралия",
      "zh-CN": "澳大利亚"
    }
  },
  {
    "publicKey": "0225ff2ae6a3d9722b625072503c2f64f6eddb78d739379d2ee55a16b3b0ed0a17",
    "alias": "STRANGEIRON",
    "capacity": 7038263480,
    "channels": 95,
    "firstSeen": 1651725065,
    "updatedAt": 1661958465,
    "city": {
      "de": "Melbourne",
      "en": "Melbourne",
      "es": "Melbourne",
      "fr": "Melbourne",
      "ja": "メルボルン",
      "pt-BR": "Melbourne",
      "ru": "Мельбурн",
      "zh-CN": "墨尔本"
    },
    "country": {
      "de": "Australien",
      "en": "Australia",
      "es": "Australia",
      "fr": "Australie",
      "ja": "オーストラリア",
      "pt-BR": "Austrália",
      "ru": "Австралия",
      "zh-CN": "澳大利亚"
    }
  },
  ...
]
GET Top 100 Nodes by Connectivity lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/rankings/connectivity
Description

Returns a list of the top 100 nodes by connectivity (number of open channels).

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/rankings/connectivity"
Response
[
  {
    "publicKey": "038863cf8ab91046230f561cd5b386cbff8309fa02e3f0c3ed161a3aeb64a643b9",
    "alias": "aranguren.org",
    "channels": 489,
    "capacity": 17155095532,
    "firstSeen": 1521457251,
    "updatedAt": 1662035238,
    "city": {
      "de": "Melbourne",
      "en": "Melbourne",
      "es": "Melbourne",
      "fr": "Melbourne",
      "ja": "メルボルン",
      "pt-BR": "Melbourne",
      "ru": "Мельбурн",
      "zh-CN": "墨尔本"
    },
    "country": {
      "de": "Australien",
      "en": "Australia",
      "es": "Australia",
      "fr": "Australie",
      "ja": "オーストラリア",
      "pt-BR": "Austrália",
      "ru": "Австралия",
      "zh-CN": "澳大利亚"
    }
  },
  {
    "publicKey": "030425d8babe3ab6dfc065e69dd8b10ce6738c86ea7d634324c913e21620fa5eaf",
    "alias": "MTest441",
    "channels": 258,
    "capacity": 4113430492,
    "firstSeen": 1640955758,
    "updatedAt": 1662035216,
    "city": null,
    "country": null
  },
  {
    "publicKey": "0270685ca81a8e4d4d01beec5781f4cc924684072ae52c507f8ebe9daf0caaab7b",
    "alias": "0270685ca81a8e4d4d01",
    "channels": 164,
    "capacity": 638119030,
    "firstSeen": 1535613050,
    "updatedAt": 1662034882,
    "city": {
      "de": "Clifton",
      "en": "Clifton",
      "ja": "クリフトン",
      "pt-BR": "Clifton",
      "ru": "Клифтон",
      "zh-CN": "克利夫頓"
    },
    "country": {
      "de": "Vereinigte Staaten",
      "en": "United States",
      "es": "Estados Unidos",
      "fr": "États Unis",
      "ja": "アメリカ",
      "pt-BR": "EUA",
      "ru": "США",
      "zh-CN": "美国"
    }
  },
  ...
]
GET Top 100 Oldest Nodes lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/rankings/age
Description

Returns a list of the top 100 oldest nodes.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/rankings/age"
Response
[
  {
    "publicKey": "038863cf8ab91046230f561cd5b386cbff8309fa02e3f0c3ed161a3aeb64a643b9",
    "alias": "aranguren.org",
    "channels": 489,
    "capacity": 17155095532,
    "firstSeen": 1521457251,
    "updatedAt": 1662035238,
    "city": {
      "de": "Melbourne",
      "en": "Melbourne",
      "es": "Melbourne",
      "fr": "Melbourne",
      "ja": "メルボルン",
      "pt-BR": "Melbourne",
      "ru": "Мельбурн",
      "zh-CN": "墨尔本"
    },
    "country": {
      "de": "Australien",
      "en": "Australia",
      "es": "Australia",
      "fr": "Australie",
      "ja": "オーストラリア",
      "pt-BR": "Austrália",
      "ru": "Австралия",
      "zh-CN": "澳大利亚"
    }
  },
  {
    "publicKey": "0277622bf4c497475960bf91bd3c673a4cb4e9b589cebfde9700c197b3989cc1b8",
    "alias": "CoinGate",
    "channels": 11,
    "capacity": 91768515,
    "firstSeen": 1525964963,
    "updatedAt": 1661991683,
    "city": {
      "de": "Frankfurt am Main",
      "en": "Frankfurt am Main",
      "es": "Francfort",
      "fr": "Francfort-sur-le-Main",
      "ja": "フランクフルト・アム・マイン",
      "pt-BR": "Frankfurt am Main",
      "ru": "Франкфурт",
      "zh-CN": "法兰克福"
    },
    "country": {
      "de": "Deutschland",
      "en": "Germany",
      "es": "Alemania",
      "fr": "Allemagne",
      "ja": "ドイツ連邦共和国",
      "pt-BR": "Alemanha",
      "ru": "Германия",
      "zh-CN": "德国"
    }
  },
  ...
]
GET Node Stats lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/:pubKey
Description

Returns details about a node with the given :pubKey.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/03f060953bef5b777dc77e44afa3859d022fc1a77c55138deb232ad7255e869c00"
Response
{
  "public_key": "03f060953bef5b777dc77e44afa3859d022fc1a77c55138deb232ad7255e869c00",
  "alias": "Boltz",
  "first_seen": 1551006126,
  "updated_at": 1662033208,
  "color": "#ff9800",
  "sockets": "35.237.24.136:9735,idz7qlezif6hgmjkpmuelnsssyxea2lwan562a5gla7jmlxsl5cb2cad.onion:9735",
  "as_number": 396982,
  "city_id": 4589387,
  "country_id": 6252001,
  "subdivision_id": 4597040,
  "longitude": -79.9746,
  "latitude": 32.8608,
  "iso_code": "US",
  "as_organization": "Google Cloud",
  "city": {
    "en": "North Charleston",
    "ja": "ノースチャールストン",
    "pt-BR": "North Charleston",
    "ru": "Норт-Чарлстон",
    "zh-CN": "北查尔斯顿"
  },
  "country": {
    "de": "Vereinigte Staaten",
    "en": "United States",
    "es": "Estados Unidos",
    "fr": "États Unis",
    "ja": "アメリカ",
    "pt-BR": "EUA",
    "ru": "США",
    "zh-CN": "美国"
  },
  "subdivision": {
    "en": "South Carolina",
    "es": "Carolina del Sur",
    "fr": "Caroline du Sud",
    "ja": "サウスカロライナ州",
    "pt-BR": "Carolina do Sul",
    "ru": "Южная Каролина",
    "zh-CN": "南卡罗来纳州"
  },
  "active_channel_count": 46,
  "capacity": "111724126",
  "opened_channel_count": 165,
  "closed_channel_count": 1
}
GET Historical Node Stats lightning
Endpoint
GET /testnet/api/v1/lightning/nodes/:pubKey/statistics
Description

Returns historical stats for a node with the given :pubKey.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/nodes/0225ff2ae6a3d9722b625072503c2f64f6eddb78d739379d2ee55a16b3b0ed0a17/statistics"
Response
[
  {
    "added": 1662422400,
    "capacity": 7038263480,
    "channels": 95
  },
  {
    "added": 1662336000,
    "capacity": 7038263480,
    "channels": 95
  },
  {
    "added": 1662249600,
    "capacity": 7038263480,
    "channels": 95
  },
  ...
]
GET Channel lightning
Endpoint
GET /testnet/api/v1/lightning/channels/:channelId
Description

Returns info about a Lightning channel with the given :channelId.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/channels/2478509215728271360"
Response
{
  "id": "2478509215728271360",
  "short_id": "2254191x4x0",
  "capacity": 16777215,
  "transaction_id": "6b711b07b019d73ad432f401c01ac6ea253fbe2778388e5a686b5777678556c7",
  "transaction_vout": 0,
  "closing_transaction_id": null,
  "closing_reason": null,
  "updated_at": "2022-08-31T08:30:42.000Z",
  "created": "2022-06-05T16:26:31.000Z",
  "status": 1,
  "node_left": {
    "alias": "scarce-city-testnet",
    "public_key": "0304fa1da67d441b382e3b2142a1980840276d89b6477812da8d26487b5ffa938c",
    "channels": 15,
    "capacity": 104876207,
    "base_fee_mtokens": 1000,
    "cltv_delta": 0,
    "fee_rate": 1,
    "is_disabled": 0,
    "max_htlc_mtokens": 16777215000,
    "min_htlc_mtokens": 1000,
    "updated_at": "2022-08-31T08:30:42.000Z",
    "longitude": -123.1236,
    "latitude": 49.2526
  },
  "node_right": {
    "alias": "STRANGEIRON",
    "public_key": "0225ff2ae6a3d9722b625072503c2f64f6eddb78d739379d2ee55a16b3b0ed0a17",
    "channels": 95,
    "capacity": 7038263480,
    "base_fee_mtokens": 0,
    "cltv_delta": 0,
    "fee_rate": 10,
    "is_disabled": 0,
    "max_htlc_mtokens": 16609443000,
    "min_htlc_mtokens": 1,
    "updated_at": "2022-08-27T20:22:06.000Z",
    "longitude": 144.9669,
    "latitude": -37.8159
  }
}
GET Channels from TXID lightning
Endpoint
GET /testnet/api/v1/lightning/channels/txids?txId[]=:txid
Description

Returns channels that correspond to the given :txid (multiple transaction IDs can be specified).

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/channels/txids?txId[]=6b711b07b019d73ad432f401c01ac6ea253fbe2778388e5a686b5777678556c7&txId[]=%{2}"
Response
[
  {
    "inputs": {},
    "outputs": {
      "0": {
        "id": "2478509215728271360",
        "short_id": "2254191x4x0",
        "capacity": 16777215,
        "transaction_id": "6b711b07b019d73ad432f401c01ac6ea253fbe2778388e5a686b5777678556c7",
        "transaction_vout": 0,
        "closing_transaction_id": null,
        "closing_reason": null,
        "updated_at": "2022-08-31T08:30:42.000Z",
        "created": "2022-06-05T16:26:31.000Z",
        "status": 1,
        "node_left": {
          "alias": "scarce-city-testnet",
          "public_key": "0304fa1da67d441b382e3b2142a1980840276d89b6477812da8d26487b5ffa938c",
          "base_fee_mtokens": 1000,
          "cltv_delta": 0,
          "fee_rate": 1,
          "is_disabled": 0,
          "max_htlc_mtokens": 16777215000,
          "min_htlc_mtokens": 1000,
          "updated_at": "2022-08-31T08:30:42.000Z"
        },
        "node_right": {
          "alias": "STRANGEIRON",
          "public_key": "0225ff2ae6a3d9722b625072503c2f64f6eddb78d739379d2ee55a16b3b0ed0a17",
          "base_fee_mtokens": 0,
          "cltv_delta": 0,
          "fee_rate": 10,
          "is_disabled": 0,
          "max_htlc_mtokens": 16609443000,
          "min_htlc_mtokens": 1,
          "updated_at": "2022-08-27T20:22:06.000Z"
        }
      }
    }
  }
]
GET Channels from Node Pubkey lightning
Endpoint
GET /testnet/api/v1/lightning/channels?public_key=:pubKey&status=:channelStatus
Description

Returns a list of a node's channels given its :pubKey. Ten channels are returned at a time. Use :index for paging. :channelStatus can be open, active, or closed.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/channels?public_key=0200202c1f23899d03bf3f37c87d348e6847bbd91e407df91a713c7dcf3442738b&status=open"
Response
[
  {
    "status": 1,
    "closing_reason": null,
    "closing_date": null,
    "capacity": 8000000,
    "short_id": "2223130x18x0",
    "id": "2444357285058838528",
    "fee_rate": 10,
    "node": {
      "alias": "Gilgamesh Lightning Testnet",
      "public_key": "034997a34858a25dc453a722efc1545d8c7749cbd4587a8d2ef149d257babd8357",
      "channels": 121,
      "capacity": "512199932"
    }
  },
  {
    "status": 0,
    "closing_reason": null,
    "closing_date": null,
    "capacity": 1000000,
    "short_id": "2223130x19x0",
    "id": "2444357285058904064",
    "fee_rate": 0,
    "node": {
      "alias": "routing.testnet.lnmarkets.com",
      "public_key": "03bae2db4b57738c1ec1ffa1c5e5a4423968cc592b3b39cddf7d495e72919d6431",
      "channels": 22,
      "capacity": "246940161"
    }
  },
  ...
]
GET Channel Geodata lightning
Endpoint
GET /testnet/api/v1/lightning/channels-geo
Description

Returns a list of channels with corresponding node geodata.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/channels-geo"
Response
[
  [
    "038863cf8ab91046230f561cd5b386cbff8309fa02e3f0c3ed161a3aeb64a643b9",
    "aranguren.org",
    144.9669,
    -37.8159,
    "028c3640c57ffe47eb41db8225968833c5032f297aeba98672d6f7037090d59e3f",
    "lndus0.next.zaphq.io",
    -79.9746,
    32.8608
  ],
  [
    "02be8f360e57600486b93dd33ea0872a4e14a259924ba4084f27d693a77d151158",
    "lndus1.dev.zaphq.io",
    -79.9746,
    32.8608,
    "0273ec4a4c80e767aca1477592649ad6e709ad31e7435668043a9dceccb3020f35",
    "lndwr1.dev.zaphq.io",
    -79.9746,
    32.8608
  ],
  ...
]
GET Channel Geodata for Node lightning
Endpoint
GET /testnet/api/v1/lightning/channels-geo/:pubKey
Description

Returns a list of channels with corresponding geodata for a node with the given :pubKey.

Code Example
curl -sSL "https://mempool.emzy.de/testnet/api/v1/lightning/channels-geo/0273ec4a4c80e767aca1477592649ad6e709ad31e7435668043a9dceccb3020f35"
Response
[
  [
    "039b1717db1193eb332d3c0bfdcce90a6aab60efa478b60963d3b406a8fc45134a",
    "testnet.demo.btcpayserver.org",
    -79.3503,
    43.7806,
    "0273ec4a4c80e767aca1477592649ad6e709ad31e7435668043a9dceccb3020f35",
    "lndwr1.dev.zaphq.io",
    -79.9746,
    32.8608
  ],
  [
    "0273ec4a4c80e767aca1477592649ad6e709ad31e7435668043a9dceccb3020f35",
    "lndwr1.dev.zaphq.io",
    -79.9746,
    32.8608,
    "02c6fbedc6ca81d4db5883f1d01481c8187d5f85075729a658288a6d507f770ada",
    "HAPPYTOLL",
    -97.822,
    37.751
  ],
  ...
]