9eec003c72
Resolves https://linear.app/arcadedev/issue/TOO-590/add-resources-support-to-server-framework <!-- CURSOR_SUMMARY --> --- > [!NOTE] > **Medium Risk** > Adds new resource registration/reading semantics (including URI templates and duplicate/multiple-match policies) and changes JSON Schema generation for tool I/O, which may affect MCP client compatibility and runtime behavior across servers. > > **Overview** > **Adds first-class MCP Resources support across `arcade-mcp-server`.** `MCPApp` can now register resources at build time via `add_resource`/`@resource` plus convenience `add_text_resource` and `add_file_resource`, and passes these through to `MCPServer` for startup loading (including `ResourceTemplate` URIs with `{param}` and `{param*}` matching). > > **Extends `ResourceManager` behavior.** Resource reads now coerce handler return types (including raw `bytes` to base64 `BlobResourceContents`), support template matching with overlap/multiple-match detection, and introduce configurable duplicate handling policies. > > **Improves tool schema + MCP Apps linking.** Tool input/output JSON Schema generation is refactored to recursively expand nested `json` schemas and ensure `outputSchema` is always an object (wrapping non-object returns in a `result` property); `MCPApp` also supports attaching arbitrary tool `_meta` extensions (e.g., `ui.resourceUri`) applied at server start. > > Adds two new example servers (`resources`, `tools_with_output_schema`) and broad test coverage for resource templates, static/file resources, meta extensions, and schema wrapping/recursion. > > <sup>Written by [Cursor Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit e785bee79d74110727519b00b81dcad6e9b74212. This will update automatically on new commits. Configure [here](https://cursor.com/dashboard?tab=bugbot).</sup> <!-- /CURSOR_SUMMARY --> --------- Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> |
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| Makefile | ||
| pyproject.toml | ||
| README.md | ||
Arcade MCP Server
Arcade MCP (Model Context Protocol) Server enables AI assistants and development tools to interact with your Arcade tools through a standardized protocol. Build, deploy, and integrate MCP servers seamlessly across different AI platforms.
Quick Links
- Quickstart Guide - Get up and running in minutes
- Walkthrough - Learn by example
- API Reference - MCPApp API documentation
Features
- 🚀 FastAPI-like Interface - Simple, intuitive API with
MCPApp - 🔧 Tool Discovery - Automatic discovery of tools in your project
- 🔌 Multiple Transports - Support for stdio and HTTP/SSE
- 🤖 Multi-Client Support - Works with Claude, Cursor, and more
- 📦 Package Integration - Load installed Arcade packages
- 🔐 Built-in Security - Environment-based configuration and secrets
- 🔄 Hot Reload - Development mode with automatic reloading
- 📊 Production Ready - Deploy with Docker, systemd, PM2, or cloud platforms
Getting Started
Installation
pip install arcade-mcp-server
Create Your First Server
from arcade_mcp_server import MCPApp
from typing import Annotated
app = MCPApp(name="my-tools", version="1.0.0")
@app.tool
def greet(name: Annotated[str, "Name to greet"]) -> str:
"""Greet someone by name."""
return f"Hello, {name}!"
if __name__ == "__main__":
app.run()
Run Your Server
# For development
python my_tools.py
# For Claude Desktop
python -m arcade_mcp_server stdio
# For HTTP clients
python -m arcade_mcp_server --host 0.0.0.0 --port 8080
Community
Analytics & Privacy
Arcade MCP Server collects anonymous usage data to help us improve the service and debug issues. We track "MCP server start" events to understand server usage patterns and reliability.
What We Track
When the server starts, we collect the following information:
- Server configuration: transport type (
httporstdio), host, port - Server metadata: tool count, server version
- Runtime environment: Python version, OS type and release
- Timing: device timestamp
- Errors: error messages (if startup fails)
Privacy
- For anonymous users: Events are tracked with an anonymous ID and no user profile is created
- For authenticated users: Events are linked to your account to help us provide better support
- No sensitive data (credentials, tool inputs/outputs, or personal information) is ever collected
Opt Out
To disable usage tracking, set the environment variable ARCADE_USAGE_TRACKING to 0.
License
Arcade MCP Server is open source software licensed under the MIT license.