/v2/validator/aggregate_attestation

import requests
url = "https://eth-mainnetbeacon.g.alchemy.com/v2/docs-demo/eth/v2/validator/aggregate_attestation"
querystring = {"attestation_data_root":"0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2","slot":"1","committee_index":"1"}
response = requests.get(url, params=querystring)
print(response.json())

{
  "version": "electra",
  "data": {
    "aggregation_bits": "0x01",
    "data": {
      "slot": "1",
      "index": "1",
      "beacon_block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
      "source": {
        "epoch": "1",
        "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
      },
      "target": {
        "epoch": "1",
        "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
      }
    },
    "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505",
    "committee_bits": "0x0000000000000001"
  }
}

Aggregates all attestations matching the given attestation data root, slot and committee index. Returns a single aggregated attestation. 503 is returned if the block identified by the response beacon_block_root is optimistic (i.e., the aggregated attestation attests to a block not fully verified by an execution engine). 404 is returned if no attestation is available for the requested attestation_data_root.

Aggregates all attestations matching the given attestation data root, slot and committee index. Returns a single aggregated attestation. 503 is returned if the block identified by the response `beacon_block_root` is optimistic (i.e., the aggregated attestation attests to a block not fully verified by an execution engine). 404 is returned if no attestation is available for the requested `attestation_data_root`.

Query parameters

attestation_data_rootstringRequiredformat: "hex"

HashTreeRoot (hex) of the AttestationData to aggregate.

slotstringRequired

Slot of the attestation.

committee_indexstringRequired

Committee index of the attestation.

Response

Returns aggregated Attestation object with the same AttestationData root, slot and committee index.

versionstring or null

dataobject or null