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MCP REST

@ivanboring

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ivanboring

关于 MCP REST

Exposes a SSE MCP server as a rest endpoints for tools. Only for testing

#mcp-rest#api#sse

MCP REST 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "mcp-rest": {
      "command": "npx",
      "args": [
        "mcp-rest"
      ]
    }
  }
}

MCP REST 工具

工具列表暂未提供

当前收录暂时没有可展示的工具列表，不代表服务没有工具。请查阅项目文档了解支持的能力。

点击上方按钮,在临时沙箱中运行此服务器并实时获取工具列表。

概览

What is MCP REST?

MCP REST is a REST API wrapper around the Model Context Protocol (MCP) client. It allows you to interact with an MCP server over HTTP without maintaining a constant client connection. It is intended for testing purposes only, not for production use.

How to use MCP REST?

Install globally via npm install -g mcp-rest or run with npx mcp-rest. Start the server with options such as --type (SSE only), --url (SSE server URL), --port (Express port), and --debug. Once running, use the provided API endpoints: GET /status to check connection, GET /tools to list tools, and POST /tools/:toolId to call a specific tool with JSON arguments.

Key features of MCP REST

  • Wraps MCP client as a RESTful API.
  • Supports SSE (server-sent events) connection type.
  • Configurable Express server port and SSE URL.
  • Debug logging with --debug flag.
  • Simple HTTP endpoints for status, tools, and tool calls.

Use cases of MCP REST

  • Quickly test MCP tools without setting up a persistent client.
  • Integrate MCP functionality into HTTP-based workflows or scripts.
  • Explore available tools and their parameters via GET /tools.
  • Validate tool calls with custom arguments using POST /tools/:toolId.

常见问题

1

What is MCP REST meant for?

It is designed for testing and experimentation with MCP, not for production use. The README explicitly states it is "just for testing, not to use for real."

2

How do I install and run MCP REST?

Install globally via `npm install -g mcp-rest` or use `npx mcp-rest` directly. Run with optional arguments like `--port 4000` or `--debug`. The default SSE URL is `http://localhost:8000/sse`.

3

What connection types does MCP REST support?

Currently only SSE (server-sent events) is supported, as indicated by the `--type` option defaulting to `"sse"`.

4

How can I call a tool through the REST API?

Send a POST request to `/tools/:toolId` with a JSON body containing an `"arguments"` object. Example: `curl -X POST http://localhost:3000/tools/exampleTool -H "Content-Type: application/json" -d '{"arguments": {"param1": "value1"}}'`.

5

What should I do if I encounter connection issues?

Use the `--debug` flag to see detailed logs, check the `/status` endpoint to verify connection status, and ensure your MCP server/process is running and accessible.

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