---
title: "Check any identifier"
method: POST
path: "/v1/check"
tags: ["Checks"]
---

# Check any identifier

`POST /v1/check`

## Request

- Base URL: `https://api.kaidn.io`
- URL: `https://api.kaidn.io/v1/check`
- Auth: API key in header `x-api-key`

Pass an email, IP or phone and get its risk back without recording an event.

## Request body

- object
  - `email` string
  - `ip` string, ip

## Response `200`

Success. Field-level shape for this endpoint is documented at https://kaidn.io/docs.

- object: Success. Field-level shape for this endpoint is documented at https://kaidn.io/docs.

## Other responses

- `400`: The request body or query string failed validation.
- `429`: Rate limit exceeded. Back off and retry.

---

[API](https://skmtc.dev/kaidn/apis/kaidn-api.md) · [All operations](https://skmtc.dev/kaidn/apis/kaidn-api/llms.txt) · [OpenAPI document](https://skmtc.dev/kaidn/apis/kaidn-api/revisions/6f0706942d0e?raw)