---
title: "Check if user exists"
method: POST
path: "/v1/users/exists"
tags: ["user"]
---

# Check if user exists

`POST /v1/users/exists`

Check if a user already exists by email. Wise uses email address as unique identifier for users. If email has already been used by a user, it cannot be reused to create a new user.

Note that this uses a `client-credentials-token` and not a `user access_token` for authentication.

## Headers

- `X-External-Correlation-Id` string, uuid

## Request body

- object
  - `email` string, email, required — User's email address.

## Response `200`

OK - Successfully checked user existence.

- object
  - `exists` boolean — Whether a user with this email already exists.

## Other responses

- `429` — Rate limit exceeded. Retry after the number of seconds specified in the `Retry-After` header.

---

[API](https://skmtc.net/wise/apis/platform-api.md) · [All operations](https://skmtc.net/wise/apis/platform-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/wise/platform-api/versions/4907a1d269ab/schema)