Server API

The daemon implements JSON RPC, so you can use any RPC client to communicate with it or write your own. A basic request over HTTP would look like this (using testnet4 endpoint)

POST http://127.0.0.1:7225

{
    "jsonrpc": "2.0", 
    "method": "<methodname>", 
    "params": [ .. ],
    "id": 1
}

Get Server Info

getserverinfo retrieve the current state of the spaces daemon

Params None

CLI

space-cli getserverinfo

cURL

Example Response

{
  "chain": "mainnet",
  "tip": {
    "hash": "0000000000000000000210254eedf4507d3df7bf258ed4bcedfcbb8d02df58c6",
    "height": 883338
  }
}

Get Space

getspace retrieve information about a space:

Params

Name	Type	Description
space	string	Canonical space name e.g. @bitcoin

CLI

space-cli getspace @bitcoin

cURL

Example Response

Pre-auction

{
  "txid": "83e11748b0eb15b4ee26f35d3bffe13d35d66d055de4a42a41a06d646879f994",
  "n": 1,
  "name": "@btc",
  "covenant": {
    "type": "bid",
    "burn_increment": 1000,
    "signature": "........",
    "total_burned": 1000,
    "claim_height": null
  },
  "value": 662,
  "script_pubkey": "........"
}

In Auction

Claimed

Get Space Owner

getspaceowner retrieves the outpoint of a space:

Params

Name	Type	Description
space	string	Canonical space name e.g. @bitcoin

CLI

only available via JSON-RPC

cURL

Example Response Responds with an outpoint with txid:vout format.

"3ac9772d3451bd0b2a7cfa09c3eecebdbfb54bbdf90f322e7e7fa6dee3bc0def:1"

Get Spaceout

getspaceout retrieves a spaceout which are any UTXOs tracked by the spaces protocol not necessarily ones with a space.

Params

Name	Type	Description
outpoint	string	An Outpoint which is a specific output within a transaction using txid:vout format e.g. 3ac9772d3451bd0b2a7cfa09c3eecebdbfb54bbdf90f322e7e7fa6dee3bc0def:1

CLI

space-cli getspaceout "3ac9772d3451bd0b2a7cfa09c3eecebdbfb54bbdf90f322e7e7fa6dee3bc0def:1"

cURL

Example Response

Space UTXO

{
  "n": 1,
  "name": "@bitcoin",
  "covenant": {
    "type": "transfer",
    "expire_height": 925977,
    "data": null
  },
  "value": 666,
  "script_pubkey": "........"
}

Other UTXOs

Estimate bid

estimatebid estimates the required bid to make it into the auctions phase for the given interval (in 144 block increments)::

Params

Name	Type	Description
target	number	The target interval e.g. specify 0 for the coming rollout, 1 for the day after and so on.

CLI

space-cli estimatebid 0

cURL

Example Response Responds with an amount in Satoshis

2000

Get Rollout

getrollout get spaces rolling out into auctions for the given interval (in 144 block increments):

Params

Name	Type	Description
target	number	The target interval e.g. specify 0 for the coming rollout, 1 for the day after and so on.

CLI

space-cli getrollout 0

cURL

Example Response An array of spaces expected to be in auctions within the given target

[
  [
    "@bitcoin",
    1000
  ],
  [
    "@mytestspace",
    1000
  ],

Get Block Meta

getblockmeta Retrieves all transactions relevant to spaces for the given block (requires block indexing to be enabled)

Params

Name	Type	Description
block_hash	string	The block hash as hex string

CLI

only available via JSON-RPC

cURL

Example Response

{
  "height": 55879,
  "tx_meta": [
    {
      "txid": "394ebef5203c4306c3f7a6d1a5c2058bac130deb24c1d7725094b31d1ff54ea4",
      "spends": [
        {
          "n": 0
        }
      ],
      "creates": [
        {
          "n": 0,
          "value": 662,
          "script_pubkey": "........"
        }
      ],
      "updates": []
    },
    {
      "txid": "f811529d79c9fc808c240a1b5087ba19610c4177a01ffa8047c3cc143cf3eb1a",
      "spends": [
        {
          "n": 0
        },
        {
          "n": 1
        },
        {
          "n": 2
        },
        {
          "n": 3
        }
      ],
      "creates": [
        {
          "n": 1,
          "name": "@bitcoin",
          "covenant": {
            "type": "transfer",
            "expire_height": 108439,
            "data": "68656c6c6f20776f726c64"
          },
          "value": 666,
          "script_pubkey": "........"
        }
      ],
      "updates": []
    }
  ]
}

Get Transaction Meta

gettxmeta Retrieves all transactions relevant to spaces for the given block (requires -txindex to be enabled)

Params

Name	Type	Description
txid	string	The transaction id as a hex string

CLI

only available via JSON-RPC

cURL

Example Response

{
  "txid": "394ebef5203c4306c3f7a6d1a5c2058bac130deb24c1d7725094b31d1ff54ea4",
  "spends": [
    {
      "n": 0
    }
  ],
  "creates": [
    {
      "n": 0,
      "value": 662,
      "script_pubkey": "........"
    }
  ],
  "updates": []
}

Check package

checkpackage Simulates the transactions being applied to the current blockchain state

Params

Name	Type	Description
txs	array of strings	The transactions as hex strings

CLI

only available via JSON-RPC

cURL

Example Response

[
  {
    "txid": "e318d853699b3f6c734d19ccb8a04b0428252fd8ef0e650c23fd07edc9a1e438",
    "spends": [
      {
        "n": 1
      }
    ],
    "creates": [
      {
        "n": 0,
        "value": 2,
        "script_pubkey": "........"
      },
      {
        "n": 1,
        "value": 1662,
        "script_pubkey": "........"
      }
    ],
    "updates": [
      {
        "type": "revoke",
        "reason": "bid_psbt_output_spent",
        "output": {
          "txid": "2a6fb4db5cd40ddccb4d49ada1caa78ea313ae6bae8b47ca12fd6f45a589ba75",
          "n": 1,
          "name": "@space",
          "covenant": {
            "type": "bid",
            "burn_increment": 1000,
            "signature": "........",
            "total_burned": 1000,
            "claim_height": null
          },
          "value": 662,
          "script_pubkey": "........"
        }
      }
    ]
  }
]