---
title: "Create service login challenge"
method: POST
path: "/v1/auth/login/service/challenge"
tags: ["Auth"]
---

# Create service login challenge

`POST /v1/auth/login/service/challenge`

Handles `POST /v1/auth/login/service/challenge` via `post.v1.auth.login.service.challenge`.

## Request body

- ServiceChallengeRequest
  - `client_id` string, required
  - `key_id` string, nullable

## Response `200`

Challenge issued

- ServiceChallengeResponse
  - `expires_at` string, required
  - `key_id` string, required
  - `message` string, required
  - `nonce` string, required

## Other responses

- `400` — Standard JSON error payload.
- `404` — Standard JSON error payload.
- `500` — Standard JSON error payload.

---

[API](https://skmtc.net/phoenix/apis/phoenix-eternal-api.md) · [All operations](https://skmtc.net/phoenix/apis/phoenix-eternal-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/phoenix/phoenix-eternal-api/revisions/0f598402d680/schema)