---
title: "Expand a Relation Tuple"
method: GET
path: "/expand"
tags: ["read"]
---

# Expand a Relation Tuple

`GET /expand`

Use this endpoint to expand a relation tuple.

## Query parameters

- `namespace` string, required
- `object` string, required
- `relation` string, required
- `max-depth` integer, required

## Response `200`

expandTree

- ExpandTree
  - `children` ExpandTree[]
  - `subject_id` string
  - `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
  - `type` 'union' | 'exclusion' | 'intersection' | 'leaf', required

## Other responses

- `400` — The standard error format
- `404` — The standard error format
- `500` — The standard error format

## Changes

- **2021-10-07** `e90046dbd055` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/ory/apis/ory-keto-api/changes/expand/get.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/e90046dbd055/schema)