---
title: "GetValidatorAttestationData"
method: GET
path: "/{apiKey}/eth/v1/validator/attestation_data"
---

# GetValidatorAttestationData

`GET /{apiKey}/eth/v1/validator/attestation_data`

Produce an attestation data.

Requests that the beacon node produce an AttestationData.

A 503 error must be returned if the block identified by the response
`beacon_block_root` is optimistic (i.e. the attestation attests to a block
that has not been fully verified by an execution engine).

## Path parameters

- `apiKey` string, required — <style> .custom-style { color: #048FF4; } </style> For higher throughput, please <span class="custom-style"><a href="../docs/quick-start-guide#-creating-your-api-key-on-the-zan-platform" target="_blank">create your own API key</a></span>.

## Query parameters

- `slot` string, required
- `committee_index` string, required

## Response `200`

Success response

- object
  - `data` object, required — The [`AttestationData`](https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#attestationdata) object from the CL spec.
    - `slot` string, required
    - `index` string, required
    - `beacon_block_root` string, hex, required — LMD GHOST vote.
    - `source` object, required — The [`Checkpoint`](https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#checkpoint
      - `epoch` string, required
      - `root` string, hex, required
    - `target` object, required — The [`Checkpoint`](https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#checkpoint
      - `epoch` string, required
      - `root` string, hex, required

---

[API](https://skmtc.net/zan/apis/zan-getnftmetadata.md) · [All operations](https://skmtc.net/zan/apis/zan-getnftmetadata/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/zan/zan-getnftmetadata/versions/be8fa2338895/schema)