---
title: "PostValidatorDutiesSyncByEpoch"
method: POST
path: "/{apiKey}/eth/v1/validator/duties/sync/{epoch}"
---

# PostValidatorDutiesSyncByEpoch

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

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

## 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>.
- `epoch` string, required

## Request body

- string[]

## Response `200`

Sync committee duties.

- object
  - `execution_optimistic` boolean, required — 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[], required
    - `pubkey` string, hex, required — The validator's BLS public key, uniquely identifying them. _48-bytes, hex encoded with 0x prefix, case insensitive._
    - `validator_index` string, required — Index of validator in validator registry.
    - `validator_sync_committee_indices` string[], required — The indices of the validator in the sync committee.

---

[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)