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mcpgw

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MCP Host acting as a gateway/proxy

0 stars JavaScriptOthers Updated Feb 7, 2026

Documentation

mcpGW

An MCP gateway/proxy to simplify apps that use tools, derived from https://github.com/mark3labs/mcphost

This is a work in progress and only tested with ollama

Demo Setup 🔧

1. Ollama Setup:

  • Install Ollama from https://ollama.ai
  • Pull your desired model:
bash
ollama pull mistral
  • Ensure Ollama is running:
bash
ollama serve

2. Optional whisper.cpp support for speech to prompt

  • Install Whisper.cpp from https://github.com/ggml-org/whisper.cpp
  • Run whisper server https://github.com/ggml-org/whisper.cpp/tree/master/examples/server
  • Install a copy of ffmpeg into /tools

3. Optional melotts

  • https://github.com/myshell-ai/MeloTTS

4. Create a server config.. see config.sample.json

config.sample.json
{
  "UI": {
    "Listen": ":8080",
    "TLS": true,
    "Root": "example/ui"
  },
  "_comment": "You don't need SpeechToText or TextToSpeech, current code only suports whisper-server and melotts",
  "SpeechToText": {
    "Provider": "whisper",
    "Host":  "http://10.0.0.10:8802",
    "Model": ""
  },
  "TextToSpeech": {
    "Provider": "melotts",
    "Host":  "http://10.0.0.10:7777",
    "Model": ""
  },
  "Inference": {
       "Provider": "ollama",
       "Host":  "http://localhost:11434",
       "Token": "",
       "Model": "mistral-small3.1",
       "SystemPrompt": ""
   },
   "Servers": {
     "mcpServers": {
       "reminders": {
         "command": "./reminders",
         "args": [
         ]
       }
     }
   }
}

5. Build and run

bash
make all
./mcpgateway --config ./config.sample.json

Writing your own application

mcpGW provides a set of apis (see server/server.go) and will run any application pointed to by the config UI section:

We included a basic sample UI:

aiignore
"UI": {
    "Listen": ":8080",
    "TLS": true,
    "Root": "example/ui"
  },

Writing your own mcp server

mcpGW will run any mcpserver, but we also included a simple one in ```examples/mcpservers/reminders```

You can then add the server to the mcpServers section of the config

code
"Servers": {
     "mcpServers": {
       "reminders": {
         "command": "./reminders",
         "args": [
         ]
       }
     }
   }

Frequently asked questions

What is mcpgw?

mcpgw is MCP Host acting as a gateway/proxy

How do I install mcpgw?

Open the GitHub repository and follow its README. Most MCP servers are added to your client's MCP config, then called by your agent.

Is mcpgw open source?

Yes — it is hosted on GitHub at https://github.com/thirdmartini/mcpgw.

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