---
title: "Check Duplicate Phones"
method: POST
path: "/outbound-leads/check-duplicates"
tags: ["Outbound Leads"]
---

# Check Duplicate Phones

`POST /outbound-leads/check-duplicates`

## Request

- Base URL: `https://api.openintake.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.openintake.ai/outbound-leads/check-duplicates`
- Auth: none declared

Check which phone numbers already exist as outbound leads.

## Request body

- CheckDuplicatePhonesRequest: Request to check which phone numbers already exist as outbound leads.
  - `phone_numbers` string[], required

## Response `200`

Successful Response

- CheckDuplicatePhonesResponse: Response containing phone numbers that already exist.
  - `existing_phone_numbers` string[], required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/openintake/apis/openintake-api.md) - [All operations](https://skmtc.dev/openintake/apis/openintake-api/llms.txt) - [OpenAPI document](https://skmtc.dev/openintake/apis/openintake-api/revisions/de90a8dcbc07?raw)