"Arc" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Search declassified UAP/UFO government archives, geocoded sightings and cited entity profiles.
Neuronto ARD Registry: one search across every public ARD registry + 200,000+ verified MCP tools
Original art from galleries and artists: semantic search, provenance, live availability.
Read-only access to Epivo's live course catalogue for AI agents.
Unpaid-vs-ARC book verdicts, catalog facts, series order, and sample reviews.
Read and verify freeq conversations: channels, history, search, signatures, pins.
Search royalty-free BGM and sound effects (commercial use OK, no credit) and game fan arrangements.
Ars Technica tech, IT & hardware news. $0.01/query. Register in-session — free testnet funds.
What a domain publishes for AI agents: ai-catalog.json, llms.txt, agents.md, robots.txt rules. Free.
Archive MCP — wraps the Internet Archive APIs (free, no auth)
Art MCP — Metropolitan Museum of Art Collection API (free, no auth)
Search building products & manufacturers for AI agents: CAD, BIM, specs by CSI from arcat.com
US National Archives Catalog (NARA): search the federal government's permanent records…
Personal AI travel agent. Points optimization, live flight/hotel/award search, trip planning.
Evidence-first AI research intelligence with full-text search, resolved citations, authors, entities, repositories and research tracks across AI, ML, NLP, vision and robotics.
