Book Search (Open Library)No sign-inSearch books and authors across Open Library, the Internet Archive open catalog.Currency Rates (ECB)No sign-inLatest and historical ECB foreign-exchange reference rates for 30+ currencies, via Frankfurter.Invokera DiscoverNo sign-inSearch, inspect and invoke every public tool on Invokera through one MCP connection.Invokera StatusNo sign-inLive health and AI-readable metadata of invokera.com. Demo of an Invokera-hosted MCP server.Postal CodesNo sign-inPostal code lookup with place names and coordinates for 60+ countries. Via Zippopotam.us.Public HolidaysNo sign-inPublic holidays for 100+ countries — by year, or the next ones coming up. Via Nager.Date.World TimeNo sign-inCurrent time in any IANA time zone, plus the full time-zone list. Via timeapi.io.