---
title: "Performs backchannel authorization of the end-user."
method: POST
path: "/bc-authorize"
tags: ["Authorization"]
---

# Performs backchannel authorization of the end-user.

`POST /bc-authorize`

The Backchannel Authentication Endpoint is used to initiate an out-of-band authentication of the end-user.

## Response `200`

OK

- object
  - `AUTH_REQ_ID` string, required
  - `EXPIRES_IN` integer, required
  - `INTERVAL` integer, required

## Other responses

- `400` — Invalid parameters are provided to endpoint.
- `401` — Unauthorized CIBA (Client Initiated Backchannel Authentication) access.
- `403` — Invalid details provided hence access denied.

## Changes

- **2022-03-25** `d6fc0677410c` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/janssenproject/apis/janssen-authorization-server/changes/bc-authorize/post.md)

---

[API](https://skmtc.dev/janssenproject/apis/janssen-authorization-server.md) · [All operations](https://skmtc.dev/janssenproject/apis/janssen-authorization-server/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/janssenproject/janssen-authorization-server/revisions/ae174ecfdc21/schema)