---
title: "GET /challenges/{challenge_id}/attest"
method: GET
path: "/challenges/{challenge_id}/attest"
tags: ["challenges"]
---

# GET /challenges/{challenge_id}/attest

`GET /challenges/{challenge_id}/attest`

Produces an attestation that a given user has completed a challenge, or errors.

## Path parameters

- `challenge_id` string, required

## Query parameters

- `oracle` string, required
- `specifier` string, required
- `user_id` string, required

## Response `200`

Success

- AttestationReponse
  - `data` Attestation
    - `owner_wallet` string, required
    - `attestation` string, required

## Other responses

- `400` — The attestation request was invalid (eg. The user didn't complete that challenge yet)
- `500` — Server error

---

[API](https://skmtc.dev/audius/apis/audius-api.md) · [All operations](https://skmtc.dev/audius/apis/audius-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/audius/audius-api/revisions/940230b2ed3d/schema)