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Blockstream Transactions API

The Transactions API from Blockstream — 10 operation(s) for transactions.

Blockstream Transactions API is one of 7 APIs that Blockstream publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Transaction. The published artifact set on APIs.io includes an OpenAPI specification and an API reference.

This API exposes 10 operations across 10 paths. It is described by OpenAPI 3.1.0, at version 1.0.

Requests are made against 5 base URLs: https://blockstream.info/api, https://blockstream.info/testnet/api, https://blockstream.info/signet/api, https://blockstream.info/liquid/api, https://blockstream.info/liquidtestnet/api.

10 operations 10 paths 0 schemas 8 GET2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
1.0
Base URL
https://blockstream.info/api
License
Resource Areas
1

Paths & Operations 10

Across 10 paths, the API surfaces 10 operations — 8 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.

Transactions 10
GET
/tx/{txid}
Get transaction
getTransaction 1 param → 200404
GET
/tx/{txid}/status
Get transaction status
getTransactionStatus 1 param → 200
GET
/tx/{txid}/hex
Get raw transaction (hex)
getTransactionHex 1 param → 200
GET
/tx/{txid}/raw
Get raw transaction (binary)
getTransactionRaw 1 param → 200
GET
/tx/{txid}/merkleblock-proof
Get merkle inclusion proof (bitcoind format)
getTransactionMerkleblockProof 1 param → 200
GET
/tx/{txid}/merkle-proof
Get merkle inclusion proof (Electrum format)
getTransactionMerkleProof 1 param → 200
GET
/tx/{txid}/outspend/{vout}
Get spending status of an output
getTransactionOutspend 2 params → 200
GET
/tx/{txid}/outspends
Get spending status of all outputs
getTransactionOutspends 1 param → 200
POST
/tx
Broadcast raw transaction
broadcastTransaction body → 200400
POST
/txs/package
Broadcast a package of related transactions
broadcastTransactionPackage body → 200400

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

blockstream-transactions-api-openapi.yml Raw ↑

Other APIs Blockstream publishes across the network.

Blockstream Addresses API
Blockstream Assets API
Blockstream Blocks API
Blockstream Fee Estimates API
Blockstream Mempool API
Blockstream Mining API
Where this information came from

This is an independent, third-party profile of Blockstream Transactions API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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