---
title: "OpenAI-style function tools"
method: GET
path: "/functions.json"
tags: ["discovery"]
---

# OpenAI-style function tools

`GET /functions.json`

## Request

- Base URL: `https://skillselion.com`
- URL: `https://skillselion.com/functions.json`
- Auth: none declared

Every public OpenAPI operation as an OpenAI function (name = operationId, JSON Schema parameters). Same catalog as /openapi.json. No extra invented endpoints.

## Response `200`

Function-calling catalog.

- FunctionCallingCatalog
  - `format` 'openai.function', required
  - `spec` string, uri
  - `documentation` string, uri
  - `count` integer
  - `functions` object[], required
    - `name` string, required
    - `description` string, required
    - `parameters` object, required

---

[API](https://skmtc.dev/skillselion/apis/skillselion-public-api.md) · [All operations](https://skmtc.dev/skillselion/apis/skillselion-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/skillselion/apis/skillselion-public-api/revisions/e6e0c4d3d116?raw)