Blockchain.com Addresses API

openapi: 3.0.3
info:
  title: Blockchain.com Charts, Stats & Market Data Addresses API
  description: 'Aggregated JSON endpoints covering Bitcoin network statistics, historical chart datasets,

    mining pool distribution, BTC exchange rates (ticker) and fiat-to-BTC conversion. Generated

    from https://www.blockchain.com/explorer/api/charts_api and

    https://www.blockchain.com/explorer/api/exchange_rates_api.

    '
  version: 1.0.0
  contact:
    name: Blockchain.com
    url: https://www.blockchain.com/api
  license:
    name: Blockchain.com API Terms of Service
    url: https://www.blockchain.com/legal/terms
  x-generated-from: documentation
  x-last-validated: '2026-05-30'
servers:
- url: https://api.blockchain.info
  description: Blockchain.com aggregated data host (charts, stats, pools).
- url: https://blockchain.info
  description: Blockchain.info explorer host (ticker, fiat-to-BTC conversion).
tags:
- name: Addresses
  description: Bitcoin address summaries and unspent outputs.
paths:
  /rawaddr/{bitcoin_address}:
    get:
      operationId: getAddress
      summary: Blockchain.com Get a Single Address
      description: 'Returns information about a Bitcoin address including total received, total sent, final

        balance, and transactions (paginated).

        '
      tags:
      - Addresses
      parameters:
      - name: bitcoin_address
        in: path
        required: true
        description: Bitcoin address (Base58 or Bech32).
        schema:
          type: string
          example: 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa
      - name: limit
        in: query
        required: false
        description: Maximum number of transactions to return (default 50).
        schema:
          type: integer
          default: 50
          maximum: 50
      - name: offset
        in: query
        required: false
        description: Number of transactions to skip for pagination (multiples of 50).
        schema:
          type: integer
          default: 0
      responses:
        '200':
          description: Address detail.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Address'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /multiaddr:
    get:
      operationId: getMultiAddress
      summary: Blockchain.com Get Multi-address Summary
      description: Returns balance and recent transactions for up to multiple addresses at once.
      tags:
      - Addresses
      parameters:
      - name: active
        in: query
        required: true
        description: Pipe-delimited Bitcoin addresses (e.g. `addr1|addr2|addr3`).
        schema:
          type: string
          example: 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa|3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy
      - name: n
        in: query
        required: false
        description: Number of recent transactions to return across all addresses (max 100).
        schema:
          type: integer
          default: 50
          maximum: 100
      - name: offset
        in: query
        required: false
        description: Number of transactions to skip for pagination.
        schema:
          type: integer
          default: 0
      responses:
        '200':
          description: Multi-address response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MultiAddressResponse'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /unspent:
    get:
      operationId: getUnspentOutputs
      summary: Blockchain.com Get Unspent Outputs
      description: Returns the unspent transaction outputs (UTXOs) for one or more addresses.
      tags:
      - Addresses
      parameters:
      - name: active
        in: query
        required: true
        description: Pipe-delimited Bitcoin addresses.
        schema:
          type: string
          example: 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa|3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy
      - name: limit
        in: query
        required: false
        description: Maximum number of UTXOs to return (default 250, max 1000).
        schema:
          type: integer
          default: 250
          maximum: 1000
      - name: confirmations
        in: query
        required: false
        description: Minimum confirmations a UTXO must have to be returned.
        schema:
          type: integer
          default: 0
      responses:
        '200':
          description: Unspent outputs.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UnspentResponse'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    Transaction:
      type: object
      description: A Bitcoin transaction with its inputs and outputs.
      properties:
        hash:
          type: string
          description: Transaction hash.
          example: 00000000000000000004f4e7a18a09b1f8e96d6fb01d9b6fce4d12cb3f8a7e21
        ver:
          type: integer
          description: Transaction version.
          example: 1
        vin_sz:
          type: integer
          description: Number of inputs.
          example: 1
        vout_sz:
          type: integer
          description: Number of outputs.
          example: 1
        size:
          type: integer
          description: Serialized transaction size in bytes.
          example: 1
        weight:
          type: integer
          description: Transaction weight (BIP141).
          example: 1
        fee:
          type: integer
          format: int64
          description: Fee paid in Satoshi.
          example: 1
        relayed_by:
          type: string
          description: IP address that relayed the transaction.
        lock_time:
          type: integer
          format: int64
          description: Lock time (block height or Unix seconds).
          example: 1748609400000
        tx_index:
          type: integer
          format: int64
          description: Internal transaction index.
          example: 1
        double_spend:
          type: boolean
          description: True if the transaction is a known double-spend.
          example: true
        time:
          type: integer
          format: int64
          description: First-seen time (Unix seconds).
          example: 1748609400000
        block_index:
          type: integer
          format: int64
          description: Block index containing the transaction (null if unconfirmed).
          example: 1
        block_height:
          type: integer
          description: Block height containing the transaction (null if unconfirmed).
          example: 851234
        inputs:
          type: array
          description: Transaction inputs.
          items:
            $ref: '#/components/schemas/TxInput'
        out:
          type: array
          description: Transaction outputs.
          items:
            $ref: '#/components/schemas/TxOutput'
    UnspentResponse:
      type: object
      description: Unspent outputs for the requested addresses.
      properties:
        notice:
          type: string
          description: Optional explanatory notice.
        unspent_outputs:
          type: array
          description: List of UTXOs.
          items:
            $ref: '#/components/schemas/UnspentOutput'
    Address:
      type: object
      description: Address summary including balances and transaction history.
      properties:
        hash160:
          type: string
          description: Hash160 representation of the address.
          example: 00000000000000000004f4e7a18a09b1f8e96d6fb01d9b6fce4d12cb3f8a7e21
        address:
          type: string
          description: Bitcoin address.
          example: 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa
        n_tx:
          type: integer
          description: Number of transactions involving this address.
          example: 1
        n_unredeemed:
          type: integer
          description: Number of unredeemed outputs.
          example: 1
        total_received:
          type: integer
          format: int64
          description: Total received in Satoshi.
          example: 1
        total_sent:
          type: integer
          format: int64
          description: Total sent in Satoshi.
          example: 1
        final_balance:
          type: integer
          format: int64
          description: Current balance in Satoshi.
          example: 100000
        txs:
          type: array
          description: Recent transactions involving the address (paginated).
          items:
            $ref: '#/components/schemas/Transaction'
    MultiAddressResponse:
      type: object
      description: Multi-address summary plus recent transactions across all addresses.
      properties:
        addresses:
          type: array
          description: Per-address summary entries.
          items:
            type: object
            properties:
              address:
                type: string
              n_tx:
                type: integer
              total_received:
                type: integer
                format: int64
              total_sent:
                type: integer
                format: int64
              final_balance:
                type: integer
                format: int64
              change_index:
                type: integer
              account_index:
                type: integer
        wallet:
          type: object
          description: Aggregate balances across the supplied addresses.
          properties:
            n_tx:
              type: integer
            n_tx_filtered:
              type: integer
            total_received:
              type: integer
              format: int64
            total_sent:
              type: integer
              format: int64
            final_balance:
              type: integer
              format: int64
        txs:
          type: array
          description: Most recent transactions across all addresses.
          items:
            $ref: '#/components/schemas/Transaction'
    TxOutput:
      type: object
      description: A single Bitcoin transaction output (a UTXO before it is spent).
      properties:
        type:
          type: integer
          description: Output type indicator.
          example: 1
        spent:
          type: boolean
          description: True if the output has been spent.
          example: true
        value:
          type: integer
          format: int64
          description: Value in Satoshi.
          example: 100000
        spending_outpoints:
          type: array
          description: Outpoints that spent this output (when spent).
          items:
            type: object
            properties:
              tx_index:
                type: integer
                format: int64
              n:
                type: integer
        n:
          type: integer
          description: Output index within the transaction.
          example: 1
        tx_index:
          type: integer
          format: int64
          description: Internal transaction index.
          example: 1
        script:
          type: string
          description: Output script (scriptPubKey) as hex.
        addr:
          type: string
          description: Destination address (when derivable).
    TxInput:
      type: object
      description: A single Bitcoin transaction input.
      properties:
        sequence:
          type: integer
          format: int64
          description: Sequence number.
          example: 1
        witness:
          type: string
          description: SegWit witness data.
        script:
          type: string
          description: Input script (scriptSig) as hex.
        prev_out:
          $ref: '#/components/schemas/TxOutput'
    UnspentOutput:
      type: object
      description: A single UTXO owned by one of the requested addresses.
      properties:
        tx_hash:
          type: string
          description: Hash of the funding transaction (little-endian).
          example: 00000000000000000004f4e7a18a09b1f8e96d6fb01d9b6fce4d12cb3f8a7e21
        tx_hash_big_endian:
          type: string
          description: Hash of the funding transaction (big-endian).
          example: 00000000000000000004f4e7a18a09b1f8e96d6fb01d9b6fce4d12cb3f8a7e21
        tx_output_n:
          type: integer
          description: Output index within the funding transaction.
          example: 1
        script:
          type: string
          description: Output script (scriptPubKey) as hex.
        value:
          type: integer
          format: int64
          description: Output value in Satoshi.
          example: 100000
        value_hex:
          type: string
          description: Output value in hex.
        confirmations:
          type: integer
          description: Number of confirmations.
          example: 1
        tx_index:
          type: integer
          format: int64
          description: Internal transaction index.
          example: 1