---
title: "List Categories"
method: GET
path: "/v1/universe/categories"
tags: ["universe"]
---

# List Categories

`GET /v1/universe/categories`

## Request

- Base URL: `https://api.usekeel.io` (the document declares no server; this is the origin it was published from)
- URL: `https://api.usekeel.io/v1/universe/categories`
- Auth: none declared

List available instrument categories with counts.

## Headers

- `Authorization` string, nullable
- `X-Org-Id` string, nullable

## Response `200`

Successful Response

- CategoryResponse[]
  - `tag` string, required
  - `count` integer, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/usekeel/apis/keel-api.md) · [All operations](https://skmtc.dev/usekeel/apis/keel-api/llms.txt) · [OpenAPI document](https://skmtc.dev/usekeel/apis/keel-api/revisions/3191ca10b0ab?raw)