Your API has new users it doesn't know about yet — AI agents.

Claude Code reads CLAUDE.md. Cursor reads .cursorrules. Codex and Copilot read AGENTS.md. And if you want your API callable as a tool, you need an MCP server. That's a lot of files to write and keep in sync with your API spec.

Agentify reads your OpenAPI spec and writes them all.

npx agentify-cli transform https://petstore.swagger.io/v2/swagger.json

What You Get

One command generates up to 9 formats from a single OpenAPI spec:

| Format | Used by | |--------|---------| | MCP Server | Claude, ChatGPT, Copilot (with Dockerfile) | | CLAUDE.md | Claude Code | | AGENTS.md | Codex, Copilot, Cursor, Gemini CLI | | .cursorrules | Cursor IDE | | Skills | Agent platforms | | llms.txt | LLM search engines | | GEMINI.md | Gemini CLI | | A2A Card | Google Agent-to-Agent protocol | | CLI | A standalone command-line tool that makes real API calls |

Quick Start

# Transform any OpenAPI spec (Swagger 2.0 or OpenAPI 3.x)
npx agentify-cli transform https://petstore.swagger.io/v2/swagger.json

# Pick specific formats
npx agentify-cli transform ./my-api.yaml -f mcp claude.md agents.md

# Generate a standalone CLI tool
npx agentify-cli transform ./my-api.yaml -f cli -o my-api-cli

# Custom output directory and project name
npx agentify-cli transform https://api.example.com/openapi.json -o ./output -n my-project

Example output:

  Agentify v0.4.1
  Agent Interface Compiler

  +-- 20 endpoints detected -> SMALL API strategy
  +-- 3 domains identified (pet, store, user)
  +-- Auth: apiKey (SWAGGER_PETSTORE_API_KEY)
  +-- Strategy: Direct tool mapping — one tool per endpoint

  > Generated mcp + claude.md + agents.md + cursorrules + llms.txt + gemini.md + skills + a2a (15 files)
  > Output: ./swagger-petstore-mcp-server
  > Security scan: PASSED

Tested on Real APIs

Agentify handles APIs of any size — from 13-endpoint apps to 1,000+ endpoint platforms.

| API | Endpoints | Domains | TypeScript | Server starts | |-----|-----------|---------|------------|---------------| | Notion | 13 | 5 | PASS | PASS | | Petstore (Swagger 2.0) | 20 | 3 | PASS | PASS | | httpbin (non-compliant spec) | 73 | 11 | PASS | PASS | | Slack Web API | 174 | 55 | PASS | PASS | | Stripe | 452 | 1 | PASS | PASS | | GitHub REST API | 1,093 | 43 | PASS | PASS |

Every generated MCP server compiles with zero TypeScript errors and starts immediately. Non-compliant specs (like httpbin) are auto-normalized with warnings instead of rejected. The GitHub REST API — 1,093 endpoints across 43 domains — produces a working server with 1,093 tools.

How It Works

OpenAPI Spec (URL or file)
    |
    v
  PARSE ──> SANITIZE ──> ANALYZE ──> COMPILE ──> EMIT ──> SCAN ──> OUTPUT
              |              |           |          |        |
          Strip unsafe    Detect     Build IR    Run      Security
          patterns        domains,   (typed)     emitters  scan all
                          auth,                            generated
                          API scale                        code

Agentify parses your spec into an intermediate representation (AgentifyIR), then runs pluggable emitters to produce each output format. Every generated artifact goes through a security scan before being written to disk.

Security built in:

• Input sanitization (blocks eval, exec, Function constructor injection)
• Prompt injection pattern detection
• Generated code scanning

Contributing

New emitters are welcome. Each one implements a simple interface:

import type { Emitter, AgentifyIR, EmitterOptions, EmitterResult } from "../types";

export class MyFormatEmitter implements Emitter {
  readonly name = "my-format";
  readonly format = "my-format";

  async emit(ir: AgentifyIR, options: EmitterOptions): Promise<EmitterResult> {
    // Generate output files from the IR
    return { format: this.format, filesWritten: [...], warnings: [] };
  }
}

agentify/
+-- src/
|   +-- cli.ts              # CLI entry point
|   +-- parser/             # OpenAPI parsing + sanitization
|   +-- generator/          # Pluggable emitters for each format
|   +-- security/           # Input sanitization + output scanning
|   +-- types.ts            # AgentifyIR type definitions
+-- test/                   # Vitest test suite (136 tests)

Status

This is early. It works on Swagger 2.0 and OpenAPI 3.x specs, handles auth detection, domain grouping, and API scale analysis. If you try it and something breaks, open an issue — that helps a lot.

• [x] OpenAPI parser, MCP emitter, security scanner, CLI
• [x] 9 output formats: MCP, CLAUDE.md, AGENTS.md, .cursorrules, Skills, llms.txt, GEMINI.md, A2A, CLI
• [ ] Capability graph and semantic grouping
• [ ] Web UI and one-click deploy
• [ ] Custom emitter plugins

License

MIT