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Explorer Gateway API — Bitcoin Transaction Lookup
x402
Explorer Gateway API — Bitcoin Transaction Lookup is a paid API for AI agents from api.blockchain.info, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).
Fetches detailed information for one or more Bitcoin transactions by their transaction IDs via the Blockchain.info explorer gateway
Price / call$0.002
Success—
StatusUnknown
How this service works
Paid AI-agent access to Blockchain.com Explorer API
Output
Returns a JSON response containing details for each queried Bitcoin transaction, typically including transaction ID, block height, confirmation count, input/output amounts, fees, timestamps, and sender/receiver addresses.
Example use cases
Verify incoming Bitcoin payment
“I just received a Bitcoin payment — can you check whether transaction a1b2c3d4e5f6... has been confirmed on-chain and tell me how many confirmations it has?”
Batch audit of BTC transaction history
“I have a list of 20 Bitcoin transaction IDs from last month's payouts. Can you pull the on-chain details for all of them at once so I can verify the amounts and timestamps?”
Monitor crypto withdrawal confirmation
“We just processed a BTC withdrawal with txid 9f8e7d6c5b4a... — can you check the Blockchain.info explorer to see if it's confirmed and what fee was paid?”
Technical details
Endpoint
POSThttps://api.blockchain.info/explorer-gateway-kt/x402/btc/transactions?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to look up one or more Bitcoin (BTC) transaction details using their transaction IDs, especially in batch (up to 50 at once). Prefer this over generic block explorers when you need programmatic, pay-per-use access to Blockchain.info's BTC transaction data without API key setup. It is specifically scoped to Bitcoin — use sibling endpoints for Solana, Ethereum, or Bitcoin Cash.
Side effects
- Invalid or malformed transaction IDs return an error or empty result
- Unconfirmed or mempool transactions may return partial data
- Exceeding the 50 txId array limit results in a request error
- Payment failure (x402) if USDC balance is insufficient
- Network timeouts if the blockchain explorer backend is temporarily unavailable
- Non-Bitcoin txIds (e.g. Ethereum hashes) submitted to the BTC endpoint will fail or return no results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| txIds | array |
Output
Schema · Response
{
"type": "json",
"format": "application/json"
}Tags
x402
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