---
title: "OAuth 2.0 Authorization Endpoint (POST)"
method: POST
path: "/restapi/oauth/authorize"
tags: ["OAuth 2.0 / OpenID Connect"]
---

# OAuth 2.0 Authorization Endpoint (POST)

`POST /restapi/oauth/authorize`

Performs Authentication of the End-User by sending the User Agent to the Authorization Server's
Authorization Endpoint for Authentication and Authorization,
using request parameters defined by OAuth 2.0 [RFC-6749](https://datatracker.ietf.org/doc/html/rfc6749#section-3.1)
and additional parameters and parameter values defined by
[OpenID Connect Core 1.0](https://openid.net/specs/openid-connect-core-1_0.html#AuthorizationEndpoint).

This is the version that uses HTTP `POST` method.

## Other responses

- `302` — Successful response, HTTP redirect to login form
- `400` — The response with **HTTP 400 "Bad request"** status used in some OAuth / OpenID Connect endpoints.

---

[API](https://skmtc.net/ringcentral/apis/ringcentral-api.md) · [All operations](https://skmtc.net/ringcentral/apis/ringcentral-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/ringcentral/ringcentral-api/revisions/8d602198ec97/schema)