Add MCP Discovery Server - Semantic search for MCP servers

[yksanjo]

Summary

This PR adds MCP Discovery Server - a discovery and routing layer that enables AI agents to find the right MCP server for any task.

Why this matters

• Agents are currently limited to pre-configured MCP servers
• No way to dynamically discover new capabilities
• No performance/reliability data available

What MCP Discovery provides

• Semantic search using embeddings (24 servers indexed)
• Performance metrics (latency, uptime)
• Side-by-side server comparison
• Free hosted API + self-hosted option

Tools

Tool	Description
discover_mcp_server	Find servers matching natural language needs
get_server_metrics	Get performance data for a server
compare_servers	Compare multiple servers side-by-side

Example

Agent: "I need a database with authentication"
→ Returns: Supabase MCP (94% confidence) + install command + uptime data

Links

• Repo: https://github.com/yksanjo/mcp-discovery
• Live API: https://mcp-discovery-production.up.railway.app
• npm: https://www.npmjs.com/package/mcp-discovery-api

Happy to address any feedback!