MCP Ollama Server

Instructions

Implementation Reference

• src/mcp_ollama/server.py:20-38 (handler)

  The handler function for the 'list_models' tool. Decorated with @mcp.tool() for registration. Uses the ollama Client to list models, formats name, size, and modified time for each, returns formatted string or error.

  @mcp.tool()
  async def list_models() -> str:
      """List all downloaded Ollama models"""
      try:
          models = ollama.list()
          if not models.get('models'):
              return "No models found"
  
          formatted_models = []
          for model in models['models']:
              formatted_models.append(
                  f"Name: {model.get('model', 'Unknown')}\n"
                  f"Size: {model.get('size', 'Unknown')}\n"
                  f"Modified: {model.get('modified_at', 'Unknown')}\n"
                  "---"
              )
          return "\n".join(formatted_models)
      except Exception as e:
          return f"Error listing models: {str(e)}"