mcp-quickstart

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Forge a working, testable, publishable MCP server in 30 seconds.
One command. TypeScript or Python. Example tools, the Inspector, and tests — all wired up.
Or point it at an OpenAPI spec and get one MCP tool per API endpoint, automatically.

npm create mcp-quickstart@latest my-server

Most "create an MCP server" guides leave you with an empty skeleton and a 20-step setup. mcp-quickstart hands you a server that runs, tests, and connects to Claude / Cursor on the first try — then gets out of your way.

Turn any REST API into an MCP server

Most scaffolders hand you an empty template and say "now go write your tools." mcp-quickstart can instead read an existing API and write the tools for you — from an OpenAPI spec or a single curl command:

# whole API, from an OpenAPI spec:
npx mcp-quickstart petstore-mcp --from-openapi https://petstore3.swagger.io/api/v3/openapi.json

# one endpoint, straight from a curl you already have:
npx mcp-quickstart my-tool --from-curl "curl https://api.example.com/v1/search?q=hi -H 'Authorization: Bearer X'"

Point it at any OpenAPI 3.x document (a URL or a local .json / .yaml) and it generates a real, typed MCP server — one tool per operation, with path/query params and request bodies wired up to a small HTTP client. Request bodies are expanded into per-field zod types ($ref, nested objects, arrays and enums resolved), not an opaque blob — so the AI gets a real schema for each tool. Set API_BASE_URL (and an optional auth header) in .env, run npm run dev, and your AI agent can call the API immediately.

--from-curl does the same for a single request: paste a curl command (or a file with one) and get one MCP tool. Query params and the JSON body become overridable tool inputs, and auth headers are moved to .env instead of being hard-coded into the generated source.

my-api-mcp/
├── src/
│   ├── index.ts   # one registerTool(...) per API operation — plain, editable TS
│   └── http.ts    # generic caller: URL building, auth header, body
└── .env.example   # API_BASE_URL, API_AUTH_HEADER, API_AUTH_VALUE

No magic, no runtime spec parsing — just generated TypeScript you own and can edit.

Deploy a remote MCP server to the edge

Local stdio servers are great, but the ecosystem is moving to remote MCP servers over Streamable HTTP. mcp-quickstart can scaffold one that deploys to Cloudflare Workers — stateless (createMcpHandler, no Durable Objects), so it runs on the free Workers plan, cold-starts in milliseconds, and is reachable globally:

npx mcp-quickstart edge-server --transport cloudflare -y
cd edge-server && npm install
npx wrangler login
npm run deploy        # → https://edge-server.<you>.workers.dev/mcp

Then point Cursor / Claude at the /mcp URL. This is exactly what edge runtimes are good at — low-latency orchestration, not running models. (To run a model you still call a GPU backend; the Worker is the global front door / gateway.)

The closed loop: API → globally-deployed remote MCP server

Combine the two ideas. Feed an OpenAPI spec (or a single curl) and target Cloudflare, and you get an API-backed remote MCP server that's ready to deploy worldwide — in one command:

npx mcp-quickstart api-edge \
  --from-openapi https://petstore3.swagger.io/api/v3/openapi.json \
  --transport cloudflare -y
cd api-edge && npm install
npx wrangler secret put API_AUTH_VALUE   # if the API needs auth
npm run deploy        # → https://api-edge.<you>.workers.dev/mcp

Every API operation becomes an MCP tool, wired through a generated HTTP client, served by createMcpHandler on the free Workers plan. The base URL is baked in from the spec; auth lives in Workers secrets, never in your code or git. --from-curl … --transport cloudflare works the same way for a single endpoint.

There's no extra cost to ship this: the scaffold, npm publish and the Workers free tier are all free — you only pay for the upstream API/traffic you choose to use.

Why mcp-quickstart

The official scaffolder gives you a bare bones starting point. mcp-quickstart is the "…but without the part you hate" version:

Quick start

# interactive
npm create mcp-quickstart@latest

# non-interactive
npm create mcp-quickstart@latest weather-server -- --lang ts -y
npx mcp-quickstart weather-server --lang python -y

Before it lands on npm, you can run it straight from GitHub:

npx github:G12789/mcp-quickstart weather-server --lang ts -y

Then:

cd weather-server
npm install        # or: uv sync   (Python)
npm run dev        # start the server on stdio
npm run inspect    # open the MCP Inspector and click your tools
npm test           # green out of the box

What you get

Every generated server ships with one of each MCP primitive, so you have a real reference to copy from:

• Tool ping — proof of life
• Tool text_stats — count chars / words / lines / sentences (fully offline)
• Resource greeting://{name} — dynamic read-only data
• Prompt summarize — a reusable prompt template

Heavy logic lives in a separate, pure tools.ts / tools.py so it stays trivially testable.

Options

npm create mcp-quickstart@latest [name] [options]

  --from-openapi <path|url>  generate one MCP tool per API operation from an OpenAPI spec
  --from-curl <cmd|file>     turn a single curl command into an MCP tool
  --lang <ts|python>         language (default: prompt)
  --transport <stdio|http|cloudflare>   transport / deploy target (default: prompt)
  --examples <bool>          include the example primitives (default: true)
  --yes, -y                  accept defaults, skip prompts
  --help, -h                 show help

Templates

Pick the transport at scaffold time:

npm create mcp-quickstart@latest my-server -- --lang ts --transport http -y

Related tools

mcp-quickstart isn't the only way to turn an API into an MCP server, and it's worth knowing the landscape:

• openapi-mcp-generator — the most popular OpenAPI→MCP generator (TS, stdio/SSE/HTTP, endpoint filtering).
• Speakeasy / Gram, FastMCP, cnoe-io/openapi-mcp-codegen — generators and managed hosting, including Python options.
• Cloudflare Agents (McpAgent) — the official path for remote MCP servers on Workers, with built-in OAuth.

Where mcp-quickstart fits: a single, dependency-light CLI that covers the common cases end to end — plain TS/Python starters, OpenAPI and curl import, and a one-command path from an API all the way to a deployed Cloudflare Worker — generating plain code you own (no runtime spec parsing, no lock-in). If you need managed hosting, governance, or deep SDK generation, reach for the tools above.

Roadmap

• --from-postman importer (Postman collections → MCP tools)
• Python output for the generated (OpenAPI / curl) servers
• --with auth (OAuth) preset for the Cloudflare / HTTP transports

Done: --from-openapi (v0.2.0) · --from-curl (v0.3.0) · per-field typed bodies / $ref (v0.4.0) · Cloudflare Workers deploy target (v0.5.0) · API → Workers in one shot (v0.6.0).

Issues and PRs welcome — every issue gets a reply within 24h.

Contributing

git clone https://github.com/G12789/mcp-quickstart.git
cd mcp-quickstart
npm install
node src/index.js test-out --lang ts -y   # try the scaffolder locally

Templates live in templates/<language>-<transport>/. Files prefixed with _ (e.g. _gitignore) are renamed on generation.

More projects

Part of a set of open tools — see github.com/G12789:
mall-ai-digital-twin · merchant-membership-miniprogram · cyber-stage-widgets

License

MIT