---
title: "Passing an empty body to this endpoint creates and returns a challenge string in the response body."
method: POST
path: "/challenges"
---

# Passing an empty body to this endpoint creates and returns a challenge string in the response body.

`POST /challenges`

Creates a challenge to be used as `options.challenge` in future requests.

## Response `200`

Challenge created

- CreateChallengeResponse — unresolved $ref

## Other responses

- `400` — Invalid or malformed input

---

[API](https://skmtc.dev/w3c/apis/verifiable-credential-api-for-lifecycle-management.md) · [All operations](https://skmtc.dev/w3c/apis/verifiable-credential-api-for-lifecycle-management/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/w3c/verifiable-credential-api-for-lifecycle-management/revisions/a52f8ca5b671/schema)