# /eth/v1/validator/beacon\_committee\_selections

This endpoint should be used by a validator client running as part of a distributed validator cluster, and is implemented by a distributed validator middleware client. This endpoint is used to exchange partial selection proofs for combined/aggregated selection proofs to allow a validator client to correctly determine if any of its validators has been selected to perform an attestation aggregation duty in a slot. Validator clients running in a distributed validator cluster must query this endpoint at the start of an epoch for the current and lookahead (next) epochs for all validators that have attester duties in the current and lookahead epochs. Consensus clients need not support this endpoint and may return a 501.

#### Parameters:

**None**

**Request body:**

array\<object>

#### Example:

{% code overflow="wrap" %}

```json
// Request
curl -X POST -H 'Content-Type: application/json' 
https://ethereum-beacon.blockpi.network/rpc/v1/your-rpc-key/eth/v1/validator/beacon_committee_selections
'
[
  {
    "validator_index": "1",
    "slot": "1",
    "selection_proof": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
  }
]
'

// Result

```

{% endcode %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.blockpi.io/build/api-reference/ethereum/ethereum-beacon-api/eth-v1-validator-beacon_committee_selections.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.