---
title: "Send authentication link to user"
method: POST
path: "/user/send_auth_link"
---

# Send authentication link to user

`POST /user/send_auth_link`

Send an authentication link email to a user. The email can use custom templates if a subscription with custom email is provided.

## Headers

- `api_key` string, required — API key for authentication

## Request body

- object
  - `email_to` string, email, required — Email address to send the authentication link to
  - `user_id` string, nullable — User ID (GUID). If provided, must exist in the project's user properties
  - `subscription_id` integer, nullable — Optional subscription ID. If provided and the subscription's price has custom email enabled, the custom email template will be used

## Response `200`

Authentication link sent successfully

- object
  - `success` integer

## Other responses

- `422` — Validation error

---

[API](https://skmtc.net/web2wave/apis/web2wave-api.md) · [All operations](https://skmtc.net/web2wave/apis/web2wave-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/web2wave/web2wave-api/revisions/c88545119271/schema)