WARNING

Thig guide is outdated, please use new one!

Getting started

We have RESTful API which help you fetch info about MicroBitcoin blockchain and interact with it. This api utilize slightly modified ElectrumX server as backend.
Our explorer and web wallet uses this api.

How to use it?

All request should be send to this endpoint :https://api.mbc.wiki

Our api uses JSON-RPC 2.0 call protocol and you should follow specification.
Request object should have following members:

jsonrpc: String specifying the version of the JSON-RPC protocol. MUST be exactly "2.0".
(not mandatory for GET request)

method: String containing the name of the method to be invoked.
(This member is mandatory)

params: Structured value that holds the parameter values to be used during the invocation of the method.
(This member not mandatory and can be omitted)

id: An identifier established by the Client that MUST contain a String, Number if included.
(This member not mandatory and can be omitted)

P.s. keep in mind, that all amounts in this API should be in Satoshis.

Methods

blockchain.info

This method return current info about MicroBitcoin blockchain.

Params: none

Request: https://api.mbc.wiki/?method=blockchain.info

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "height": 632543,
    "db_height": 632542,
    "difficulty": 7806.15884578894,
    "bestblockhash": "0000000000063ddd5db865a1d88175aab40372de08feef2d4a737280aba517fa",
    "chain": "main"
  }
}

height: current network height
db_height: height of ElectrumX database
difficulty: current network difficulty
bestblockhash: hash of latest block
chain: name of chain

blockchain.address.balance

This method return current balance of specific address.

Params:
address: addres, which balance you want to fetch

Request: https://api.mbc.wiki/?method=blockchain.address.balance&params[]=Mbb18MGUuDPnPp2oaAvjACiJzbdndxJ58b

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "confirmed": 137893,
    "unconfirmed": 0
  }
}

confirmed: confirmed balance
unconfirmed: unconfirmed including incoming/outcoming transactions

blockchain.address.history

This method return paginated history of specific address. By default return 20 latest transactions. Please, keep in mind that because of limitations of ElectrumX this method not return type of transation (incoming/outcoming).

Params:
page: history page, by default set to 0
offset: history pagination offset, by default set to 20, max value 100

Request: https://api.mbc.wiki/?method=blockchain.address.history&params[]=Mbb18MGUuDPnPp2oaAvjACiJzbdndxJ58b

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "total": 4,
    "history": [
      {
        "tx_index": 0,
        "data": {
          "txid": "112d42c035f5f03d311706e10efae6b3c85d783fde1d303b3181e4b872d13bdd",
          "size": 4402,
          "version": 2,
          "locktime": 632538,
          "blockhash": "000000000000df9f65c724e57994a8399ad30742e7b8fe0b7862d733c0d17026",
          "height": 632540,
          "confirmations": 62,
          "time": 1539924869,
          "blocktime": 1539924869
        }
      },
      ...
    ]
  }
}

total: total number of transactions
history: array which contain transaction objects

blockchain.address.mempool

This method return mempool transactions which was made from specific address

Params:
address: addres, which mempool transactions you want to fetch

Request: https://api.mbc.wiki/?method=blockchain.address.balance&params[]=Ba6PMBPEV3mn9Um3LnZPLLrGXs6g2rYy2v

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": [
    {
      "tx_hash": "25fe4cd607990dce731217235b85ac1ad1caaef28ff5c0c66381005317c321cf",
      "height": 0,
      "fee": 5
    }
  ]
}

tx_hash: hash of mempool transaction
height: always will be 0, because transaction not included to blockchain (yet)
fee: transaction fee

blockchain.address.utxo

This method return return UTXO (unspent transaction outputs) for specific ammount.

Params:
address: address, which UTXO you want to fetch
amount: amount which you want to spend, by default set to 1 Satoshi

Request: https://api.mbc.wiki/?method=blockchain.address.utxo&params[]=Mbb18MGUuDPnPp2oaAvjACiJzbdndxJ58b&params[]=1000

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": [
    {
      "tx_hash": "b617ea5b904ac2f327045bbbb2567fbf547fce83d8cb30fac867d10be443d6ea",
      "tx_pos": 59,
      "height": 632178,
      "value": 18829,
      "script": "a9142fb46f2ebfc7ad46cc55ad25e2c7f7de947c98e787"
    }
  ]
}

tx_hash: hash of transaction
tx_pos: position of transaction
height: height of block in which this transaction was included
value: value of this transaction
script: script of this transaction

blockchain.block.info

This method return info about block.

Params:
block_hash: hash of block
tx_page: transactions page, by default set to 0
tx_offset: transactions pagination offset, by default set to 20, max value 100

Request: https://api.mbc.wiki/?method=blockchain.block.info&params[]=00000000000972c87fba05727cf482c07c8a06ff5b201f667377f854e7493a30

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "hash": "00000000000972c87fba05727cf482c07c8a06ff5b201f667377f854e7493a30",
    "confirmations": 22,
    "strippedsize": 190,
    "size": 190,
    "weight": 760,
    "height": 632639,
    "version": 536870912,
    "versionHex": "20000000",
    "merkleroot": "f4eedbc566ba4b68bc46f9fb7c17445f604e06bddd9330bd5946e8bc083de1dc",
    "time": 1539931137,
    "mediantime": 1539930948,
    "nonce": 4217536564,
    "bits": "1b0995c8",
    "difficulty": 6837.186485144101,
    "chainwork": "000000000000000000000000000000000000000001e1c64ac25b3ed2b6fa787c",
    "previousblockhash": "000000000005e156a92f555fc82a35f13f1e9826abb4f2ba127468222cbe9acf",
    "nextblockhash": "000000000008baba71b83028f152005584b86126860424da2a9d00b35ad4845b",
    "tx_count": 1,
    "tx": [
      ...
    ]
  }
}

hash: block hash
confirmations: number of block confirmations
size: block size in bytes
height: block height
merkleroot: block merkle root
time: block timestamp
nonce: block nonce
difficulty: block difficulty
tx_count: total number of transactions
tx: array of block transaction objects

blockchain.block.header

This method return block header by index.

Params:
index: block index

Request: https://api.mbc.wiki/?method=blockchain.block.header&params[]=600000

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "block_height": 600000,
    "version": 536870912,
    "block_hash": "0000000000045531416ca22a308383e3b1caebbbb87bf232205a79e2984c0936",
    "prev_block_hash": "000000000003ab3a43fae9fe7176f88710a6572e96f865c7c2cb74fde7b7a6b1",
    "merkle_root": "61e8c00ffab88e3e11b5f63a2b8248c3da2078ffd4f7c7812e6df35217f284e9",
    "timestamp": 1537962310,
    "bits": 453432501,
    "nonce": 1573201836
  }
}

blockchain.block.range

This method return range of block headers. Max 100 headers.

Params:
start_height: index from which range starts
end_height: index at which range ends

Request: https://api.mbc.wiki/?method=blockchain.block.range&params[]=600000&params[]=600020

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": [
    {
      "block_height": 600000,
      "version": 536870912,
      "block_hash": "0000000000045531416ca22a308383e3b1caebbbb87bf232205a79e2984c0936",
      "prev_block_hash": "000000000003ab3a43fae9fe7176f88710a6572e96f865c7c2cb74fde7b7a6b1",
      "merkle_root": "61e8c00ffab88e3e11b5f63a2b8248c3da2078ffd4f7c7812e6df35217f284e9",
      "timestamp": 1537962310,
      "bits": 453432501,
      "nonce": 1573201836,
      "tx_count": 1,
      "difficulty": 9593.922652674186,
      "size": 315
    },
    ...
  ]
}

blockchain.transaction.send

This methon broadcast raw signed transaction to MicroBitcoin network.
It's recommended to use this method with POST request, because sometimes transaction may contain big amount of inputs/outputs which resut into long transaction hash, which may be not processed because GET request URL will be to long.

Params:
rawtx: raw signed transaction

Request: https://api.mbc.wiki/?method=blockchain.transaction.send&params[]=02000000010000000000000000000000000000000000000000000000000000000000000000ffffffff180372a709044487c95b08810002aa000000007969696d7000000000000140597307000000001976a914a8fe968f37df9b99727220d9946b1bfb68f1db3188ac00000000

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "txhash": "2a1c421c91e26f0b7c241f52ecc8f8b781dcc4b40fc1025e257963745b18a0fc"
  }
}

blockchain.transaction.raw

This method return raw transaction.

Params:
tx_hash: hash of transaction

Request: https://api.mbc.wiki/?method=blockchain.transaction.raw&params[]=2a1c421c91e26f0b7c241f52ecc8f8b781dcc4b40fc1025e257963745b18a0fc

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "rawtx": "02000000010000000000000000000000000000000000000000000000000000000000000000ffffffff180372a709044487c95b08810002aa000000007969696d7000000000000140597307000000001976a914a8fe968f37df9b99727220d9946b1bfb68f1db3188ac00000000"
  }
}

blockchain.transaction.verbose

This method return info about transaction.

Params:
tx_hash: hash of transaction
vin_page: inputs page, by default set to 0
vin_offset: inputs pagination offset, by default set to 20, max value 100
enable_vin_details: disable details about input spending output, by default set to 1

Request: https://api.mbc.wiki/?method=blockchain.transaction.verbose&params[]=2a1c421c91e26f0b7c241f52ecc8f8b781dcc4b40fc1025e257963745b18a0fc

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "txid": "2a1c421c91e26f0b7c241f52ecc8f8b781dcc4b40fc1025e257963745b18a0fc",
    "size": 109,
    "version": 2,
    "locktime": 0,
    "vin": [
      ...
    ],
    "vout": [
      ...
    ],
    "blockhash": "000000000004d47d6d473a605cbef61a8f5871d5bbb568518427ffd124c95d79",
    "height": 632690,
    "confirmations": 33,
    "time": 1539934020,
    "blocktime": 1539934020,
    "amount": 125000000,
    "vin_count": 1,
    "vout_count": 1
  }
}

vin: transaction inputs
vout: transaction outputs
amount: transfered amount

blockchain.estimatesmartfee

This method returns estimated network fee.

Params:
blocks: estimated amount of blocks in which transaction should be confirmed, by default set to 6 (not mandatory)

Request: https://api.mbc.wiki/?method=blockchain.estimatesmartfee

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "feerate": 4461,
    "blocks": 6
  }
}

blockchain.supply

This method return current circulating supply of MicroBitcoin.

Params:
height: specific height for circulating supply (not mandatory, by default set to current height)

Request: https://api.mbc.wiki/?method=blockchain.supply

Response:

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "height": 632755,
    "supply": 1824714250000000,
    "halvings_count": 2,
    "reward": 12500
  }
}

supply: circulating supply
halvings_count: number of halvings
reward: reward per block

Conclusion

You can use this thread if you have any questions or ideas how to improve this API 🙂

P.s. You can set up your own MicroBitcoin API using out ElectrumX repository 😃 !