---
title: "Register"
method: POST
path: "/oauth/register"
---

# Register

`POST /oauth/register`

## Request

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

RFC 7591 dynamic client registration, open and unauthenticated.

Open registration is what MCP clients require: they have no way to be issued
a client_id out of band, and refuse to start the flow without this endpoint.
It grants nothing on its own -- no secret is issued, the caller still has to
walk a human through Google sign-in on the consent page, and every
redirect_uri offered here is held to the same host allowlist the authorize
endpoint enforces. So the worst a stranger can register is a callback that
was already allowed to receive codes.

## Request body

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

## Response `201`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/tellers/apis/tellers-api.md) - [All operations](https://skmtc.dev/tellers/apis/tellers-api/llms.txt) - [OpenAPI document](https://skmtc.dev/tellers/apis/tellers-api/revisions/fdaa0fa44a26?raw)