Eth_getUncleByBlockNumberAndIndex

Get uncle block by block number and index

post

Sends a JSON-RPC request to retrieve an uncle block by its block number and uncle index. Returns the uncle block object if found; otherwise, returns null.

Authorizations

api-keyAuth

api-keystringRequired

Body

application/json

jsonrpcstringRequiredExample: 2.0

methodstringRequiredExample: eth_getUncleByBlockNumberAndIndex

paramsstring[] · min: 2 · max: 2Required

• blockNumber: The block number as hex string (e.g., "0x10fb78"), or "latest", "earliest", "pending"
• index: The uncle index as hex (e.g., "0x0" for the first uncle)

Example: ["0x5daf3b","0x0"]

idintegerRequiredExample: 1

Responses

200

Uncle block object or null

application/json

jsonrpcstringOptionalExample: 2.0

idintegerOptionalExample: 1

post

/

HTTPcURLJavaScriptPython

POST / HTTP/1.1
Host: blast.nownodes.io
api-key: YOUR_API_KEY
Content-Type: application/json
Accept: */*
Content-Length: 97

{
  "jsonrpc": "2.0",
  "method": "eth_getUncleByBlockNumberAndIndex",
  "params": [
    "0x5daf3b",
    "0x0"
  ],
  "id": 1
}

200

Uncle block object or null

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "number": "0x5daf3c",
    "hash": "0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1",
    "parentHash": "0xdef456def456def456def456def456def456def456def456def456def456def4",
    "miner": "0x1234567890abcdef1234567890abcdef12345678",
    "difficulty": "0x3e8",
    "totalDifficulty": "0x1d4c",
    "extraData": "0x",
    "size": "0x220",
    "gasLimit": "0x7a1200",
    "gasUsed": "0x5208",
    "timestamp": "0x5bad55",
    "transactions": []
  }
}