---
title: "Check whether phones are registered on WhatsApp"
method: POST
path: "/v1/numbers/check"
tags: ["Public API"]
---

# Check whether phones are registered on WhatsApp

`POST /v1/numbers/check`

## Request

- Base URL: `https://otprun.com`
- URL: `https://otprun.com/v1/numbers/check`
- Auth: HTTP bearer

## Request body

- CheckInputBody
  - `numbers` string[], nullable, required

## Response `200`

OK

- CheckOutputBody
  - `results` NumberStatusBody[], nullable, required
    - `checked_at` string, date-time, nullable, required
    - `exists` boolean, nullable, required: null when the number could not be checked yet
    - `phone` string, required

## Other responses

- `422`: Unprocessable Entity
- `500`: Internal Server Error

---

[API](https://skmtc.dev/otprun/apis/otp-run-api.md) · [All operations](https://skmtc.dev/otprun/apis/otp-run-api/llms.txt) · [OpenAPI document](https://skmtc.dev/otprun/apis/otp-run-api/revisions/43d40d5f4050?raw)