arcade-mcp

Overview

arcade-mcp is a comprehensive Python framework for building MCP servers and tools. It covers the full MCP specification with decorator APIs for tools, resources, prompts, sampling, and more. The framework features authorized tool calling with built-in support for 22+ OAuth providers, securely handling tokens without exposing them to clients. It integrates with any MCP client, LLM, or agent framework, and provides CLI tools for scaffolding, testing, and deployment. The framework powers over 7,500 tools across 81 MCP servers on Arcade.dev.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• list_my_reposasync def list_my_repos(context: Context) -> list[str]

  List the authenticated user's GitHub repositories.

  Try:Show me my GitHub repositoriesTry:List all my repos

Note: The README is a framework documentation that shows example tool implementations but doesn't list actual MCP tools exposed by this server. The example code shows how to create tools with the @app.tool decorator, but doesn't document specific

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Installation

uv tool install arcade-mcp

arcade new my_server
cd my_server/src/my_server

uv run server.py             # stdio (default)
uv run server.py http        # HTTP+SSE

{
  "mcpServers": {
    "my-server": {
      "command": "uv",
      "args": ["run", "server.py"]
    }
  }
}

FAQ

What MCP spec features are supported?

arcade-mcp covers the full MCP specification including tools, resources, prompts, sampling, elicitation, progress, and logging features through its decorator API.

How does OAuth integration work?

Tools can declare OAuth requirements with decorators. Arcade handles authorization flows, token storage/refresh, and injects tokens at runtime without exposing them to clients or the LLM.

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