---
title: "List schema graph classes"
method: GET
path: "/v1/schema-graph/classes"
tags: ["Schemas"]
---

# List schema graph classes

`GET /v1/schema-graph/classes`

## Request

- Base URL: `https://api.talonic.com`
- URL: `https://api.talonic.com/v1/schema-graph/classes`
- Auth: HTTP bearer

Returns all classes in the schema graph ontology.

## Response `200`

List of schema graph classes.

- object
  - `data` SchemaGraphClassResponse[]
    - `id` string, uuid, required
    - `name` string, required
    - `description` string, nullable
    - `version` integer, required
    - `field_count` integer, required
    - `created_at` string, date-time
    - `updated_at` string, date-time
    - `links` object, required
      - `self` string
      - `versions` string

## Other responses

- `401`: Missing or invalid API key.
- `429`: Daily rate limit exceeded.

---

[API](https://skmtc.dev/talonic/apis/talonic-api.md) · [All operations](https://skmtc.dev/talonic/apis/talonic-api/llms.txt) · [OpenAPI document](https://skmtc.dev/talonic/apis/talonic-api/revisions/678fe5f8c9c3?raw)