---
title: "Check a permission"
method: POST
path: "/relation-tuples/check/openapi"
tags: ["permission"]
---

# Check a permission

`POST /relation-tuples/check/openapi`

To learn how relationship tuples and the check works, head over to [the documentation](https://www.ory.com/docs/keto/concepts/api-overview).

## Query parameters

- `max-depth` integer

## Request body

- PostCheckPermissionBody — Check Permission using Post Request Body
  - `namespace` string — Namespace to query
  - `object` string — Object to query
  - `relation` string — Relation to query
  - `subject_id` string — SubjectID to query Either SubjectSet or SubjectID can be provided.
  - `subject_set` SubjectSet
    - `namespace` string, required — Namespace of the Subject Set
    - `object` string, required — Object of the Subject Set
    - `relation` string, required — Relation of the Subject Set

## Response `200`

checkPermissionResult

- CheckPermissionResult — The content of the allowed field is mirrored in the HTTP status code.
  - `allowed` boolean, required — whether the relation tuple is allowed

## Other responses

- `400` — errorGeneric
- `default` — errorGeneric

## Changes

- **2022-11-25** `5f207fe3fcc0` — 6 warning, 5 info
  - removed the optional property `code` from the response with the `400` status
  - removed the optional property `details` from the response with the `400` status
  - removed the optional property `message` from the response with the `400` status
  - removed the optional property `reason` from the response with the `400` status
  - …7 more
- **2022-06-15** `cda743c1e8c1` — 1 info
  - endpoint added
- **2021-10-07** `e90046dbd055` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/ory/apis/ory-keto-api/changes/relation-tuples/check/openapi/post.md)

---

[API](https://skmtc.dev/ory/apis/ory-keto-api.md) · [All operations](https://skmtc.dev/ory/apis/ory-keto-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/ory/ory-keto-api/revisions/4e980fe4b29b/schema)