Blockstream Transactions API

openapi: 3.1.0
info:
  title: Blockstream Esplora HTTP Addresses Transactions API
  version: '1.0'
  description: Esplora is Blockstream's open-source Bitcoin block explorer and its HTTP REST API. It provides read access to blocks, transactions, addresses, the mempool, fee estimates, and (on Liquid/Elements networks) issued assets. The API is public and requires no authentication. The same API backs blockstream.info and its testnet, signet, and Liquid networks. Amounts are in satoshis; hashes and txids are hex-encoded.
  x-generated: '2026-07-18'
  x-method: generated
  x-source: https://github.com/Blockstream/esplora/blob/master/API.md
  contact:
    name: Blockstream Esplora
    url: https://github.com/Blockstream/esplora
  license:
    name: MIT
    url: https://github.com/Blockstream/esplora/blob/master/LICENSE
servers:
- url: https://blockstream.info/api
  description: Bitcoin mainnet
- url: https://blockstream.info/testnet/api
  description: Bitcoin testnet
- url: https://blockstream.info/signet/api
  description: Bitcoin signet
- url: https://blockstream.info/liquid/api
  description: Liquid mainnet
- url: https://blockstream.info/liquidtestnet/api
  description: Liquid testnet
tags:
- name: Transactions
paths:
  /tx/{txid}:
    get:
      operationId: getTransaction
      summary: Get transaction
      description: Retrieve transaction information and details.
      tags:
      - Transactions
      parameters:
      - name: txid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Transaction object
        '404':
          description: Transaction not found
  /tx/{txid}/status:
    get:
      operationId: getTransactionStatus
      summary: Get transaction status
      description: Check the confirmation status of a transaction.
      tags:
      - Transactions
      parameters:
      - name: txid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Transaction status object
  /tx/{txid}/hex:
    get:
      operationId: getTransactionHex
      summary: Get raw transaction (hex)
      tags:
      - Transactions
      parameters:
      - name: txid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Hex-encoded transaction
  /tx/{txid}/raw:
    get:
      operationId: getTransactionRaw
      summary: Get raw transaction (binary)
      tags:
      - Transactions
      parameters:
      - name: txid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Binary transaction data
  /tx/{txid}/merkleblock-proof:
    get:
      operationId: getTransactionMerkleblockProof
      summary: Get merkle inclusion proof (bitcoind format)
      tags:
      - Transactions
      parameters:
      - name: txid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Merkle block proof
  /tx/{txid}/merkle-proof:
    get:
      operationId: getTransactionMerkleProof
      summary: Get merkle inclusion proof (Electrum format)
      tags:
      - Transactions
      parameters:
      - name: txid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Merkle proof
  /tx/{txid}/outspend/{vout}:
    get:
      operationId: getTransactionOutspend
      summary: Get spending status of an output
      tags:
      - Transactions
      parameters:
      - name: txid
        in: path
        required: true
        schema:
          type: string
      - name: vout
        in: path
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Outspend object
  /tx/{txid}/outspends:
    get:
      operationId: getTransactionOutspends
      summary: Get spending status of all outputs
      tags:
      - Transactions
      parameters:
      - name: txid
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Array of outspend objects
  /tx:
    post:
      operationId: broadcastTransaction
      summary: Broadcast raw transaction
      description: Broadcast a hex-encoded raw transaction to the network.
      tags:
      - Transactions
      requestBody:
        required: true
        content:
          text/plain:
            schema:
              type: string
              description: Hex-encoded raw transaction
      responses:
        '200':
          description: Returns the txid of the broadcast transaction
        '400':
          description: Invalid or rejected transaction
  /txs/package:
    post:
      operationId: broadcastTransactionPackage
      summary: Broadcast a package of related transactions
      tags:
      - Transactions
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                type: string
      responses:
        '200':
          description: Package broadcast result
        '400':
          description: Invalid or rejected package