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BTC Node API — Bitcoin Address Portfolio Lookup
x402
BTC Node API — Bitcoin Address Portfolio Lookup is a paid API for AI agents from api.relai.fi, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Retrieves portfolio and transaction data for a given Bitcoin address
Price / call$0.005
Success—
StatusUnknown
How this service works
Bitcoin address portfolio
Output
Returns portfolio data for the specified Bitcoin address, likely including balance, transaction list, received/sent amounts, and UTXO information derived from a Bitcoin full node.
Example use cases
Detect suspicious whale transactions
“Check the portfolio for that Bitcoin address and let me know if there's been any unusually large transaction activity in the last few months that might indicate market manipulation.”
Verify customer custody holdings
“Pull the transaction history and current balance for our client's Bitcoin address so we can confirm they actually hold the amount they claimed in their portfolio application.”
Track investment fund performance
“Get me the full transaction list and current balance for our investment fund's Bitcoin address so I can calculate returns and see exactly when we bought and sold.”
Technical details
Endpoint
GEThttps://api.relai.fi/relay/1780781322365/api/addr/{address}When to prefer
Use this endpoint when you need on-chain Bitcoin address portfolio data including balance and transaction history directly from a Bitcoin node, especially when you need raw, node-level accuracy rather than aggregated exchange data.
Side effects
- Invalid Bitcoin address format returns an error or empty response
- Address with no on-chain activity may return empty portfolio
- Node sync lag may cause stale or incomplete data
- Rate limiting or payment failure (x402) blocks the request
- Non-existent or malformed path parameter yields 404 or error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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