---
title: "Sign In Email"
method: POST
path: "/api/v1/auth/signin"
tags: ["auth"]
---

# Sign In Email

`POST /api/v1/auth/signin`

## Request

- Base URL: `https://api.alert.camp` (the document declares no server; this is the origin it was published from)
- URL: `https://api.alert.camp/api/v1/auth/signin`
- Auth: none declared

Sign in with email and password via backend.

Verifies credentials using Firebase REST API, then returns id_token +
refresh_token directly. The mobile app stores these tokens locally and
uses them for API calls without touching the Firebase SDK (avoids
Android reCAPTCHA delay).

## Request body

- EmailSignInRequest: Schema for email/password sign-in via backend.
  - `email` string, email, required
  - `password` string, required

## Response `200`

Successful Response

- DirectTokenResponse: Response containing Firebase tokens for direct auth (no SDK needed).
  - `id_token` string, required
  - `refresh_token` string, required
  - `user_id` string, required
  - `email` string, required
  - `display_name` string, nullable
  - `email_verified` boolean
  - `terms_accepted` boolean
  - `terms_previously_accepted` boolean

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/alert/apis/alertcamp.md) · [All operations](https://skmtc.dev/alert/apis/alertcamp/llms.txt) · [OpenAPI document](https://skmtc.dev/alert/apis/alertcamp/revisions/864c8c9ef833?raw)