---
title: "Create Application"
method: POST
path: "/api/v1/app"
tags: ["Application"]
---

# Create Application

`POST /api/v1/app`

Create a new application.

## Query parameters

- `get_if_exists` boolean — Get an existing application, or create a new one if doesn't exist. It's two separate functions in the libs.

## Headers

- `idempotency-key` string

## Request body

- ApplicationIn
  - `metadata` object
  - `name` string, required — Application name for human consumption.
  - `throttleRate` integer, nullable — Maximum messages per second to send to this application. Outgoing messages will be throttled to this rate.
  - `uid` string, nullable — Optional unique identifier for the application.

## Response `200`

- ApplicationOut
  - `createdAt` string, date-time, required
  - `id` string, required — The Application's ID.
  - `metadata` object, required
  - `name` string, required — Application name for human consumption.
  - `throttleRate` integer, nullable — Maximum messages per second to send to this application. Outgoing messages will be throttled to this rate.
  - `uid` string, nullable — Optional unique identifier for the application.
  - `updatedAt` string, date-time, required

## Other responses

- `201`
- `400` — Bad request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `409` — Conflict
- `422` — Validation Error
- `429` — Too Many Requests

## Changes

- **2026-08-19** `dc130bd1b074` — 3 warning
  - removed the request property `rateLimit`
  - removed the optional property `rateLimit` from the response with the `200` status
  - removed the optional property `rateLimit` from the response with the `201` status

[Change history](https://skmtc.dev/svix/apis/svix-api/changes/api/v1/app/post.md)

---

[API](https://skmtc.dev/svix/apis/svix-api.md) · [All operations](https://skmtc.dev/svix/apis/svix-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/svix/svix-api/revisions/50dde67d2d2d/schema)