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Bitcoin Core verifymessage RPC via x402
x402
Bitcoin Core verifymessage RPC via x402 is a paid API for AI agents from x402.chainquery.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Verifies a message signed by the private key behind a Bitcoin address using Bitcoin Core's verifymessage RPC, accessed pay-per-call with no API key.
Price / call$0.005
Success—
StatusUnknown
How this service works
chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Verify a message signed by the private key behind a Bitcoin address. Bitcoin Core verifymessage.
Output
Returns a boolean result indicating whether the provided signature is valid for the given message and Bitcoin address — true if the signature is authentic, false otherwise.
Example use cases
Example prompt
“Can you verify whether the Bitcoin address 1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf NA actually signed the message 'Hello world' with the signature HxTpDpOa3Uh6...?”
Technical details
Endpoint
GEThttps://x402.chainquery.com/v1/rpc/verifymessageWhen to prefer
Choose this endpoint when you need to cryptographically verify that a specific Bitcoin address owner signed a specific message, without needing your own Bitcoin node or API key — ideal for agent workflows that need trustless Bitcoin signature verification at low per-call cost via x402 micropayment.
Side effects
- Invalid or malformed Bitcoin address returns an RPC error
- Incorrect or malformed base64 signature returns false or RPC error
- Missing required params (address, message, signature) causes a 400 or RPC error
- Payment failure or insufficient USDC balance returns a 402 status
- Malformed JSON in params query parameter causes a parsing error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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