"Interesting MCP (Model Context Protocol) Servers" matching MCP connectors:

Call third-party APIs from agents without leaking secrets. SSRF blocked, per-key quotas.

Hosted x402 preflight for action authority, payment mandate, destination, expiry and replay.

Company name to domain API + MCP: official website, confidence, evidence. $5 pack; 25 free/day.

Chords, scales, transposition, capo and tempo maths, with links to free interactive music tools.

Free restaurant profit check: 12 multiple-choice questions, a grade, and the biggest money leak.

Research extension listings and search results; track installs, keyword rankings, and competitors.