---
title: "Register Endpoint"
method: POST
path: "/register"
tags: ["Agent Registration"]
---

# Register Endpoint

`POST /register`

Register a new agent client (RFC 7591).

## Request body

- RegisterRequest — POST /register request body.
  - `client_name` string, required
  - `grant_types` string[], nullable
  - `jwks` object, required
  - `scope` string, nullable
  - `token_endpoint_auth_method` string, nullable

## Response `201`

Successful Response

- RegisterResponse — POST /register 201 response.
  - `claim_token` string, nullable
  - `client_id` string, required
  - `grant_types` string[]
  - `registration_access_token` string, required
  - `registration_client_uri` string, required
  - `status` string, required
  - `token_endpoint_auth_method` string

## Other responses

- `400` — Bad Request
- `422` — Unprocessable Entity
- `500` — Internal Server Error
- `503` — Service Unavailable

## Changes

- **2026-08-14** `40a9769c02ea` — 1 info
  - added the optional property `claim_token` to the response with the `201` status
- **2026-07-27** `66cfd714b4dc` — 1 breaking, 1 warning
  - the `client_name` request property's minLength was increased from `0` to `1`
  - the `client_name` request property's maxLength was set to `255`
- **2026-07-01** `d65fcba0d25a` — 4 breaking, 29 info
  - added the new required request property `client_name`
  - added the new required request property `jwks`
  - the response's body type/format changed from ``/`` to `object`/`` for status `201`
  - the `detail` response's property type/format changed from `array`/`` to `string`/`` for status `422`
  - …29 more
- **2026-05-07** `5a765d68c56f` — 1 info
  - endpoint added
- **2026-04-13** `76e8f6063728` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/jentic/apis/jentic-control-plane-api/changes/register/post.md)

---

[API](https://skmtc.dev/jentic/apis/jentic-control-plane-api.md) · [All operations](https://skmtc.dev/jentic/apis/jentic-control-plane-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/jentic/jentic-control-plane-api/revisions/f4594f50f4d3/schema)