9e4d36b8e3
# Release Candidate 2 ## This PR: - [x] No more confusing 307 redirect logs when using `/mcp` instead of `/mcp/` (requested by @shubcodes) - [x] Fix bug in `arcade configure` for Python < 3.12 (reported by @evantahler - [x] Fix bug where tools with unsatisfied secret requirements could still be executed (reported by @evantahler, @shubcodes) - [x] Auth providers can now be imported via `from arcade_mcp_server.auth import Reddit` (requested by @shubcodes) - [x] Add complete E2E oauth flow for tool calls with informational errors about how to log into arcade and where to go to authorize (requested by @evantahler, @shubcodes) - [x] Add OAuth tool in `arcade new`'s generated server (requested by @shubcodes) - [x] Standardize on defaulting to running servers on port 8000 - [x] Improve credentials.yaml reading logic - [x] CLI user friendliness (requested by @Spartee) - [x] Remove `arcade serve` CLI command - [x] Fix race condition in `arcade logout` - [x] Update docs for desired developer onboarding flow ## Next PRs: - Get `arcade deploy` working for MCP servers. (Command is hidden for now) - Rename all occurrences of `toolkit` to `server`/`tools` and rename all occurrences of `worker` to `server`
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MCPApp
A FastAPI-like interface for building MCP servers with lazy initialization.
MCPApp provides a clean, minimal API for building MCP servers programmatically. It handles tool collection, server configuration, and transport setup with a developer-friendly interface.
Basic Usage
from arcade_mcp_server import MCPApp
app = MCPApp(name="my_server", version="1.0.0")
@app.tool
def greet(name: str) -> str:
return f"Hello, {name}!"
app.run(host="127.0.0.1", port=8000)
Class Reference
::: arcade_mcp_server.mcp_app.MCPApp
Examples
# --- server.py ---
# Programmatic server creation with a simple tool and HTTP transport
from arcade_mcp_server import MCPApp
app = MCPApp(name="example_server", version="1.0.0")
@app.tool
def echo(text: str) -> str:
return f"Echo: {text}"
if __name__ == "__main__":
# Start an HTTP server (good for local development/testing)
app.run(host="0.0.0.0", port=8000, reload=False, debug=True)
# then run the server
python server.py