# HAPI MCP

> Headless API stack that turns existing OpenAPI specs into MCP tools for AI agents without rewrites.

HAPI MCP, published by La Rebelion Labs under MCP.com.ai, converts existing OpenAPI specs into Model Context Protocol (MCP) tools so AI agents can call APIs directly. The site describes a stack of components: HAPI Server, runMCP, OrcA, QBot and chatMCP.

## What It Is

HAPI MCP is a "Headless API" approach to MCP. A CLI takes an OpenAPI/Swagger spec and generates an MCP server, so the API remains the runtime and single source of truth rather than being re-implemented in agent code. The vendor states that auth, RBAC, rate limits and audit trails are inherited from the underlying API.

## How the Workflow Runs

The site describes three steps: pick an API spec (OpenAPI 3.0+, REST), run a single CLI command, and use the resulting MCP server as a tool, agent backend or testing interface. The install is a shell script fetched via curl. Updating the spec updates the tools.

## The Component Stack

- **HAPI Server:** generates MCP tools from OpenAPI.
- **runMCP:** autoscaling execution and testing of MCP tools.
- **OrcA:** deterministic orchestration of multi-tool tasks using OpenAPI/Arazzo; also available as a VS Code extension acting as an MCP agent harness with progressive tool discovery, Ask/Plan/Act roles and a traffic analyzer showing each LLM round and MCP tool call.
- **QBot:** terminal TUI client for MCP tools.
- **chatMCP:** conversational MCP-native client.

## Client Compatibility

The vendor states any MCP client can consume the tools, including ChatGPT, Claude, QBot, Agentico.dev and custom agents. Deployment options listed include on-premise and Cloudflare.

## Features
- Generate MCP servers from OpenAPI/Swagger specs via CLI
- Inherits API auth, RBAC, rate limits and audit trails
- runMCP autoscaling execution and testing
- OrcA deterministic orchestration with OpenAPI/Arazzo
- OrcA VS Code agent harness with progressive tool discovery
- Ask/Plan/Act agent roles
- MCP traffic analyzer in VS Code
- QBot terminal client
- chatMCP conversational client
- OAuth 2.0 Dynamic Client Registration support

## Integrations
OpenAPI, Swagger, Arazzo, ChatGPT, Claude, VS Code, GitHub Copilot, Cloudflare, Agentico.dev

## Platforms
CLI, API, WEB, VSC_EXTENSION

## Pricing
Freemium — Free tier available with paid upgrades

## Links
- Website: https://mcp.com.ai
- Documentation: https://docs.mcp.com.ai/
- Repository: https://github.com/mcp-com-ai/hapimcp
- EveryDev.ai: https://www.everydev.ai/tools/hapi-mcp