Declarative, high-level MCP server API

[wong2]

Just like the Python SDK integrates FastMCP modelcontextprotocol/python-sdk#106
I think the TypeScript SDK can also integrate LiteMCP from the TypeScript ecosystem. It was inspired by FastMCP and offers a similar high-level API for developing MCP servers in TypeScript.

[jspahrsummers]

We're definitely aware of LiteMCP, as well as similar projects easy-mcp and fastmcp.

I do think the SDK needs improvement, specifically for ease of use, but I'm not convinced that these approaches offer much more than the SDK as authored today. The huge advantage of FastMCP in Python is its declarative nature.

We probably do want to make the TypeScript SDK more Express-like in usage, but this seems a comparatively minor change. If anyone has ideas for a declarative SDK, though, that'd be interesting!