Blockchain.com Transactions API

openapi: 3.0.3
info:
  title: Blockchain.com Charts, Stats & Market Data Addresses Transactions 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: Transactions
  description: Bitcoin transaction lookups.
paths:
  /rawtx/{tx_hash}:
    get:
      operationId: getTransaction
      summary: Blockchain.com Get a Single Transaction
      description: Returns a specific transaction with its inputs, outputs, fees, and block height.
      tags:
      - Transactions
      parameters:
      - name: tx_hash
        in: path
        required: true
        description: Bitcoin transaction hash (64-character hex).
        schema:
          type: string
          example: 0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098
      - name: format
        in: query
        required: false
        description: If set to `hex`, returns the raw transaction as a binary hex string.
        schema:
          type: string
          enum:
          - hex
      responses:
        '200':
          description: Transaction detail.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Transaction'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    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).
    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'
    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'