Getmempoolentry

getmempoolentry operations.

getmempoolentry

post

Returns detailed information about a transaction currently in the mempool. Requires the transaction ID (txid) as a parameter.

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: getmempoolentryPossible values:

paramsstring[]Required

Parameters:

1. txid (string, required) — Transaction ID to query.

Example: ["txid_example"]

Responses

200

Mempool entry details retrieved successfully

application/json

Object containing getmempoolentry response details.

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-testnet.nownodes.io
api-key: YOUR_API_KEY
Content-Type: application/json
Accept: */*
Content-Length: 86

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

{
  "result": {
    "vsize": 200,
    "weight": 800,
    "time": 1770000000,
    "height": 956047,
    "descendantcount": 1,
    "descendantsize": 200,
    "ancestorcount": 1,
    "ancestorsize": 200,
    "wtxid": "c27bf43da318469ec129c6fb39f86a2b4d1d80718548e4977502c523ccbbf9b0",
    "fees": {
      "base": 0.00001,
      "modified": 1,
      "ancestor": 1,
      "descendant": 1
    },
    "depends": [],
    "spentby": [],
    "bip125-replaceable": true,
    "unbroadcast": true
  },
  "error": null,
  "id": 1
}