"Examples of MCPs (Microservices Communication Protocols) That Do Not Require API Keys" matching MCP connectors:
Matching Connector Tools:
Free Vedic astrology: panchang, kundali, transits, matching, doshas, eclipses, numerology
Vedic kundli, panchang, dashas, nakshatras and KP charts for AI agents, one API key.
Read-only Wheel of Heaven corpus: myth search, primary texts, datasets, typed graph. CC0.
Read-only MCP for the Gingerguide catalog of European cities and their narrated tour sights.
Quran: Quran API Service with 90+ different languages and 400+ translations.
BaZi (Chinese Four Pillars) chart calculator. Structured chart data only, no predictions.
qart.uk MCP server: resolve scanned codes, browse the free pool, and buy QR artwork.
Read, search and cite all 81 chapters of the Tao Te Ching, with per-rendering attribution.
Quotes MCP — citation-grade quote API for public-domain authors.
Cleveland Museum of Art Open Access API (~63k artworks, many CC0)
Wikimedia Commons file/image/audio/video search via MediaWiki Action API
AniList MCP — wraps AniList GraphQL API (free, no auth)
Sefaria MCP — the free digital library of Jewish texts.
An API of Ice and Fire — A Song of Ice and Fire (books/characters/houses)
Agent integration with the Northwestern University Libraries Digital Collections API
Search 2,500+ curated architecture, design, photography and art projects. Free tier, no signup.
Agenda Rio — events and cultural agenda for Rio de Janeiro: shows, exhibitions, and things to do.