---
title: "Validate a SIP username"
method: POST
path: "/v2/rpc/specialty-line/validate-sip-username"
tags: ["Specialty Line"]
---

# Validate a SIP username

`POST /v2/rpc/specialty-line/validate-sip-username`

## Request

- Base URL: `https://api.alianza.com`
- URL: `https://api.alianza.com/v2/rpc/specialty-line/validate-sip-username`
- Auth: API key in header `X-AUTH-TOKEN`
- TypeScript: <https://skmtc.dev/alianza/apis/alianza-public-api/docs/v2/rpc/specialty-line/validate-sip-username/post.ts> (a function with typed inputs; its response is checked against the schema)

Use to validate the availability of a SIP username

## Request body

- ValidateSipUsernameDto
  - `username` string, required

## Response `200`

Returns true if the username is available, false otherwise

## Other responses

- `400`: Invalid SIP username object supplied

---

[API](https://skmtc.dev/alianza/apis/alianza-public-api.md) - [All operations](https://skmtc.dev/alianza/apis/alianza-public-api/llms.txt) - [OpenAPI document](https://skmtc.dev/alianza/apis/alianza-public-api/revisions/7223246c352c?raw)