Which MCP servers do you actually use daily?

Hey PH community 👋

I'm launching MCPNest tomorrow — a marketplace for MCP servers (the protocol that lets Claude, Cursor, and Windsurf connect to external tools).
Before launch, genuinely curious: If you use Claude or Cursor, which MCP servers have actually changed your workflow? For me it's: → Context7 (51k ⭐) — docs always up to date → Grafana MCP — monitoring without leaving Claude → Filesystem MCP — obvious but essential What are yours?

Always looking to feature the best ones on mcpnest.io (Launching tomorrow — would love your feedback!)