swagger-mcp

Overview

swagger-mcp is a tool designed to scrape Swagger UI by extracting the swagger.json file and dynamically generating well-defined mcp tools at runtime. These tools can be utilized by the MCP client for further tool selection.

📽️ Demo Video

Check out demo video showcasing the project in action:

🙌 Support

If you find this project valuable, please support me on LinkedIn by: - 👍 Liking and sharing our demo post - 💬 Leaving your thoughts and feedback in the comments - 🔗 Connecting with me for future updates

Your support on LinkedIn will help me reach more people and improve the project!

Prerequisites

To use swagger-mcp, ensure you have the following dependencies: 1. LLM Model API Key / Local LLM: Requires access to OpenAI, Claude, or Ollama models. 2. Any MCP Client: (Used mark3labs - mcphost)

Installation and Setup

Follow these steps to install and run swagger-mcp:

go install github.com/hauntingsteps/swagger-mcp@latest
swagger-mcp

Run Configuration

To run swagger-mcp directly, use:

swagger-mcp --specUrl=https://your_swagger_api_docs.json

Main flags: - --specUrl: Swagger/OpenAPI JSON URL (required) - --sseMode: Run in SSE mode (default: false, if true runs as SSE server, otherwise uses stdio) - --sseAddr: SSE server listen address in IP:Port or :Port format (if empty, will use IP:Port from --sseUrl) - --sseUrl: SSE server base URL (if empty, will use sseAddr to generate, e.g. http://IP:Port or http://localhost:Port) - If both --sseAddr and --sseUrl are set, they are used as-is without auto-complement. - --baseUrl: Override base URL for API requests - --security: API security type (basic, apiKey, or bearer) - --basicAuth: Basic auth in user:password format - --bearerAuth: Bearer token for Authorization header - --apiKeyAuth: API key(s), format passAs:name=value (e.g. header:token=abc,query:user=foo,cookie:sid=xxx) - See main.go for all supported flags and options.

MCP Configuration

To integrate with mcphost, include the following configuration in .mcp.json:

{
    "mcpServers":
    {
        "swagger_loader": {
            "command": "swagger-mcp",
            "args": ["--specUrl=<swagger/doc.json_url>"]
        }
    }
}

Demo Flow

1. Some Backend:

    go install github.com/danishjsheikh/go-backend-demo@latest 
    go-backend-demo
    

2. Ollama

    ollama run llama3.2

    

3. MCP Client

    go install github.com/mark3labs/mcphost@latest

    mcphost -m ollama:llama3.2 --config <.mcp.json_file_path>

    

Flow Diagram

🛠️ Need Help

I am working on improving tool definitions to enhance: ✅ Better error handling for more accurate responses ✅ LLM behavior control to ensure it relies only on API responses and does not use its own memory ✅ Preventing hallucinations and random data generation by enforcing strict data retrieval from APIs

If you have insights or suggestions on improving these aspects, please contribute by:
- Sharing your experience with similar implementations
- Suggesting modifications to tool definitions
- Providing feedback on current limitations

Your input will be invaluable in making this tool more reliable and effective! 🚀