---
title: "Register Client"
method: POST
path: "/v0/oauth/register"
tags: ["oauth"]
---

# Register Client

`POST /v0/oauth/register`

## Request

- Base URL: `https://api.databento.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.databento.com/v0/oauth/register`
- Auth: none declared

## Query parameters

- `retry` integer

## Request body

- OAuthClientRegistrationRequest
  - `redirect_uris` string[], required
  - `client_name` string, nullable
  - `grant_types` string[]
  - `response_types` string[]
  - `scope` string
  - `token_endpoint_auth_method` string

## Response `201`

Successful Response

- OAuthClientRegistrationResponse
  - `client_id` string, required
  - `client_name` string, nullable, required
  - `grant_types` string[], required
  - `redirect_uris` string[], required
  - `response_types` string[], required
  - `audience` string[], required
  - `token_endpoint_auth_method` string, required
  - `scope` string, required

## Other responses

- `422`: Validation Error

## Changes

- **2026-10-07** `c789950e1458`: 1 breaking, 1 info
  - removed the success response with the status `200`
  - added the success response with the status `201`
- **2026-09-30** `cb32228622ed`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/databento/apis/databento-openapi-specification/changes/v0/oauth/register/post.md)

---

[API](https://skmtc.dev/databento/apis/databento-openapi-specification.md) - [All operations](https://skmtc.dev/databento/apis/databento-openapi-specification/llms.txt) - [OpenAPI document](https://skmtc.dev/databento/apis/databento-openapi-specification/revisions/9cc41e22eead?raw)