"Free APIs and services without commercial fees" matching MCP connectors:
Matching Connector Tools:
I Ching hexagram casts, 64 hexagram meanings and changing lines for AI agents.
Vedic kundli, panchang, dashas, nakshatras and KP charts for AI agents, one API key.
Official MCP server of Origine Paris: recycled gold and IGI-certified lab-grown diamond jewellery.
Agenda Rio — events and cultural agenda for Rio de Janeiro: shows, exhibitions, and things to do.
Art provenance intelligence — 282K-node knowledge graph with cited answers and honest gaps.
Free Vedic astrology: panchang, muhurta, kundali, matching, doshas, festivals, eclipses, numerology
Contemplative reasoning with Lotus Sutra wisdom framework and ext-apps visualization.
Read-only semantic search over Vedic scripture verses, commentaries, and recorded lectures.
Search Shakespeare monologues, plays, paraphrases and summaries from shakespeare-monologues.org
Deterministic Korean Saju / Chinese BaZi Four Pillars MCP server. Heavenly Stems, Earthly Branches, Day Master, five-element distribution, and 0-100 compatibility. No AI, no API key.
Search 15K rare pre-modern texts translated to English: philosophy, religion, science, literature.
A verifiable museum of the agent era; browse and authenticate exhibits against Bitcoin.
Rumi's complete Masnavi (25,635 beyts) — search, quote, verify and explain. Free, no auth.
FBI Art Crimes MCP — FBI National Stolen Art File (free, no auth).
Colour intelligence API with 23,000+ historically grounded colours across 59 archives. Maps hex values to named archive colours with provenance, cultural risk, WCAG accessibility, and brand palette analysis.
Sefaria MCP — the free digital library of Jewish texts.
Guardian Open Platform: content search, articles, sections, tags. Free dev key.