eth_getUncleByBlockHashAndIndexHTTP

Returns an ommer (uncle) header from a block selected by hash and a zero-based ommer index, or null if unavailable. Historical Ethereum PoW blocks may have ommers; post-Merge Ethereum blocks do not. Other networks may return compatibility values or reject the method.

Chain EthereumTransport HTTPTry-it live

How to use

Pick an API key (or paste one) in the Try it panel.
Fill each parameter (order = params array index).
Send request — live against the gateway; counts toward daily quota.

Parameters

JSON-RPC positional arguments — order matches the array sent in params. Index badges below match array positions.

hashDATA(32B)required

Block hash.

indexQUANTITYrequired

Uncle index (hex).

params array (shape)

eth_getUncleByBlockHashAndIndex · paramsjson

1[
2  "$LATEST_BLOCK_HASH",
3  "0x0"
4]

Try it

Live request via the gateway — counts toward your account's daily quota. Chain: ethereum

JSON mode

API key

Try-it runs with one of your own keys — sign in or create a free account first.

Parameters

0hashDATA(32B)required

Block hash.

1indexQUANTITYrequired

Uncle index (hex).

Example request

eth_getUncleByBlockHashAndIndex · requestbash

1curl 'https://ethras.org/v1/ethereum/<YOUR_KEY>' \
2  -H 'Content-Type: application/json' \
3  -d '{
4    "id": 1,
5    "jsonrpc": "2.0",
6    "method": "eth_getUncleByBlockHashAndIndex",
7    "params": [
8      "0xa76a6d74748ba4c3b2756b51d77ca3a5f6990ef197fe8886c819d02cd4c12156",
9      "0x0"
10    ]
11  }'

Example response

Illustrative example: long hex values and object fields may be shortened for readability. Available fields depend on the network, client, protocol upgrade and transaction type.

eth_getUncleByBlockHashAndIndex · responsejson

1{
2  "jsonrpc": "2.0",
3  "id": 1,
4  "result": null
5}

Response fields

The result row describes the complete result; other rows describe its object fields or array elements. Indented rows describe nested members. For subscriptions,params.* rows describe later notifications rather than the initial reply.

Field	Type	Description
`result`	`OBJECT\|null`	Ommer header, or null for an unavailable block/index. Ethereum blocks after the Merge have no ommers; historical PoW blocks can have them.