Util RPCs

signmessagewithprivkey

Sign a message with the private key of an address

Method: POST

https://btc.nownodes.io

Example body (raw)

{
    "jsonrpc": "1.0",
    "id": "curltest",
    "method": "signmessagewithprivkey",
    "params": [
        "privkey",
        "my message"
    ]
}

Example response: 200

{
    "result": null,
    "error": {
        "code": -5,
        "message": "Invalid private key"
    },
    "id": "curltest"
}

validateaddress

Return information about the given bitcoin address.

Method: POST

https://btc.nownodes.io

Example body (raw)

{
    "jsonrpc": "1.0",
    "id": "curltest",
    "method": "validateaddress",
    "params": [
        "bc1q09vm5lfy0j5reeulh4x5752q25uqqvz34hufdl"
    ]
}

Example response: 200

{
    "result": {
        "isvalid": false,
        "error_locations": [
            35,
            36
        ],
        "error": "Invalid Bech32 checksum"
    },
    "error": null,
    "id": "curltest"
}

verifymessage

Verify a signed message

Method: POST

https://btc.nownodes.io

Example body (raw)

{
    "jsonrpc": "1.0",
    "id": "curltest",
    "method": "verifymessage",
    "params": [
        "1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX",
        "signature",
        "my message"
    ]
}

Example response: 200

{
    "result": null,
    "error": {
        "code": -5,
        "message": "Invalid address"
    },
    "id": "curltest"
}