---
title: "Get sync committee duties"
method: POST
path: "/eth/v1/validator/duties/sync/{epoch}"
tags: ["ValidatorRequiredApi", "Validator"]
---

# Get sync committee duties

`POST /eth/v1/validator/duties/sync/{epoch}`

## Request

- Base URL: `eth2-beacon-mainnet.nodereal.io/v1/api_key` (relative, and the document’s source URL is not known)
- URL: `eth2-beacon-mainnet.nodereal.io/v1/api_key/eth/v1/validator/duties/sync/{epoch}`
- Auth: none declared

Requests the beacon node to provide a set of sync committee duties for a particular epoch.

## Path parameters

- `epoch` string, required

## Request body

- string[]

## Response `200`

Success response

- object
  - `execution_optimistic` boolean: True if the response references an unverified execution payload. Optimistic information may be invalidated at a later time. If the field is not present, assume the False value.
  - `data` object[]
    - `pubkey` string: The validator's BLS public key, uniquely identifying them. _48-bytes, hex encoded with 0x prefix, case insensitive._
    - `validator_index` string: Index of validator in validator registry.
    - `validator_sync_committee_indices` string[]: The indices of the validator in the sync committee.

## Other responses

- `400`: Invalid epoch or index
- `500`: Beacon node internal error.
- `503`: Beacon node is currently syncing, try again later.

---

[API](https://skmtc.dev/nodereal/apis/eth-beacon-node-api.md) - [All operations](https://skmtc.dev/nodereal/apis/eth-beacon-node-api/llms.txt) - [OpenAPI document](https://skmtc.dev/nodereal/apis/eth-beacon-node-api/revisions/1878ea8657a1?raw)