Query the chain · Transaction API

Bitcoin transaction API for inputs, outputs and confirmations

The Bitcoin transaction API returns the full anatomy of any transaction. Pass a txid and get every input with the outputs it spends, every output with its value to the satoshi, script types, the fee paid, the block it confirmed in, and its current confirmation count. Unconfirmed transactions are visible in the mempool the moment they broadcast.

Use it to detect deposits, verify payments at a confirmation threshold, or reconcile flows. Query it as REST in an app, in SQL across many transactions, or in a dashboard. The chain is fully indexed, so lookups are instant and you never run a node. Informational data only, not advice.

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REST API · SQL · dashboards · indexed from genesis

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informational on-chain data · not financial advice

REST API · SQL · dashboards, one indexed dataset. Querying the indexed Bitcoin blockchain ...

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Indexed from genesis queryable in seconds

On-chain data not financial advice

Why it works

What you get with transaction api

Full transaction anatomy

Every input, output, value to the satoshi, script type and fee is returned for any txid, so you see exactly how funds moved.

Confirmations and mempool

Read the confirmation count for settled transactions and detect unconfirmed ones in the mempool, ideal for deposit and payment monitoring.

Built for reconciliation

Because inputs link to the outputs they spend, you can trace and reconcile flows transaction by transaction across the indexed chain.

What it handles

The indexed Bitcoin chain, queryable your way

Look up an address, a transaction, a UTXO, the rich list or an on-chain metric, by REST API, SQL or dashboard. The same authoritative data, reconciled block-by-block against the canonical chain, without running a node.

Fetch any transaction by txid
See all inputs, outputs and values
Read fees, script types and confirmations
Detect unconfirmed transactions in the mempool
Trace and reconcile flows between transactions

GET /v1/address/{addr} query result

200 · JSON

{
  "address": "bc1qxy2k…l0wdv8",
  "balance_btc": 68432.10,
  "balance_usd": 4612165420,
  "tx_count": 1284,
  "unspent_outputs": 37,
  "first_seen": "2014-02-09"
}

indexed from genesis · to the satoshi ✓ reconciled block-by-block

Why BitcoinDatabase

One platform, queryable three ways

Not a raw node to sync, not an indexer to build, and not five vendors to stitch together. The fully-indexed Bitcoin blockchain, available as a REST API, as SQL, and as dashboards, on one authoritative dataset.

REST API

Typed JSON for addresses, transactions, balances, UTXOs and metrics. Drop it into apps, wallets, explorers and agents with curl, Python or our SDKs.

SQL access

Run SQL directly against the indexed Bitcoin dataset for ad-hoc analysis, cohorts and exports, the same data the API and dashboards read from.

Compliance-first

Informational on-chain data and analytics only. Entity labels and flow tracing are framed as tooling to support a regulated team's own review, not accusations.

Good questions

Questions about transaction api

For a given txid: all inputs and the outputs they spend, all outputs with values to the satoshi, script types, the fee, the confirming block and the confirmation count. Unconfirmed transactions appear via the mempool view.

Yes. You can watch a transaction reach your chosen confirmation threshold and verify the exact outputs and amounts. It is informational on-chain data and not financial or trading advice.

Read every Bitcoin API question

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Stop running a node. Just query Bitcoin.

Run your first query now and get on-chain data back by REST API, SQL or dashboard, indexed from the genesis block. Informational on-chain data only, not financial advice.

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Indexed from genesis · REST · SQL · dashboards · addresses, transactions, UTXOs, metrics