---
title: "List Entity Types"
method: GET
path: "/knowledge/entity-types"
tags: ["knowledge"]
---

# List Entity Types

`GET /knowledge/entity-types`

## Request

- Base URL: `https://api-docs.upsmith.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api-docs.upsmith.com/knowledge/entity-types`
- Auth: one of:
  - API key in header `x-api-key`
  - HTTP bearer

## Headers

- `timezone` string
- `x-user-id` string, nullable
- `x-actor-email` string, nullable
- `x-request-source` string, nullable
- `x-operation-id` string, nullable
- `x-commit-message` string, nullable
- `x-confirmation-id` string, nullable
- `x-chat-id` string, nullable
- `organization-id` string, nullable

## Response `200`

Successful Response

- EntityTypesResponse
  - `entity_types` EntityTypeDefinition[], required
    - `id` string, required
    - `key` string, required
    - `label` string, required
    - `match_facts` string[], required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/upsmith/apis/upsmith-api.md) - [All operations](https://skmtc.dev/upsmith/apis/upsmith-api/llms.txt) - [OpenAPI document](https://skmtc.dev/upsmith/apis/upsmith-api/revisions/cce8b07a5787?raw)