Getblockcount

getblockcount operations.

getblockcount

post

Returns the number of blocks in the longest blockchain. This number increases as new blocks are added.

Authorizations

api-keyAuth

api-keystringRequired

NOWNodes API key passed in the api-key header.

Body

application/json

Request payload containing the documented method parameters and client request identifier.

jsonrpcstringRequired

JSON-RPC protocol version.

Example: 1.0

idstringRequired

Client-provided request identifier echoed in the response.

Example: curltest

methodstring · enumRequired

JSON-RPC method name.

Example: getblockcountPossible values:

paramsarrayRequired

This method takes no parameters.

Responses

200

Current block height retrieved successfully

application/json

Object containing getblockcount response details.

resultinteger · int64 · nullableRequired

Current best Bitcoin chain height known by the node.

Example: 1

errorone of · nullableRequired

JSON-RPC error object or null on success.

or

stringOptional

JSON-RPC error object. Null when the request succeeds.

Example: {"code":-28,"message":"Service temporarily unavailable"}

idone of · nullableRequired

Request id echoed by the server.

stringOptional

Client-provided request identifier echoed in the response.

Example: curltest

or

integerOptional

Client-provided request identifier echoed in the response.

Example: curltest

Other propertiesanyOptional

401

Unauthorized: API key is present but rejected by the NOWNodes gateway.

text/plain

405

Method Not Allowed. Returned by the NOWNodes gateway for malformed or unsupported gateway-level requests.

text/plain

422

Missing API key. The NOWNodes gateway returns plain text for this error.

text/plain

500

Internal Server Error

application/json

post/

HTTPcURLJavaScriptPython

POST / HTTP/1.1
Host: btc.nownodes.io
api-key: YOUR_API_KEY
Content-Type: application/json
Accept: */*
Content-Length: 70

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

{
  "result": 1,
  "error": null,
  "id": 1
}