---
title: "Get OpenAPI schema"
method: GET
path: "/openapi.json"
tags: ["Utility"]
---

# Get OpenAPI schema

`GET /openapi.json`

Get the comprehensive, auto-generated OpenAPI spec for all Fiber APIs. **Note**: This file is very large, so we don't recommend feeding it into LLMs directly. Agents should instead fetch `/llms.txt` for routing instructions and `/ai-docs/<operationId>.md` for per-operation context. If you'd like to work with Fiber from Claude, ChatGPT, or another LLM, you can also use our MCP server, explained at <https://docs.fiber.ai/article/using-mcp-in-llms>.

## Response `200`

Default Response

---

[API](https://skmtc.net/fiber/apis/fiber-ai-api.md) · [All operations](https://skmtc.net/fiber/apis/fiber-ai-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/fiber/fiber-ai-api/versions/0c537984b99f/schema)