"Y Combinator" matching MCP connectors:

Diagnose AI agent failures & translate ambiguous human input into clear intent using RPCS-1.

SEC/XBRL issuer intelligence for crypto public companies via MCP, OpenAPI, x402, and MPP.

Search real hotels, get live per-night quotes, and check out — all in chat. Guest search and checkout-link tools need no sign-in; OAuth unlocks saved trips, booking management, and one-click checkout. Renders interactive results, hotel-detail, and checkout widgets.

AI-native real estate discovery with structured property search and market intelligence.

Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only.

Biorhythm cycles, forecasts, critical days and compatibility for AI agents, one API key.

Crystal meanings, healing properties, chakra and birthstone lookups for AI agents.

Subvenciones, licitaciones y boletines oficiales de España y Europa para tu IA. Gratis, sin login.

Angel number meanings and repeating sequences like 111, 222, 333 for AI agents.

Astrology transit forecasts, timelines and significant-date feeds for AI agents.

Human Design bodygraph, type, authority, profile, gates and channels for AI agents.

Life Path, Expression, karmic debt and Chaldean numerology readings for AI agents.

I Ching hexagram casts, 64 hexagram meanings and changing lines for AI agents.

Condition-aware ingredient & product safety intelligence for agents: verdict + evidence tier + per-claim evidence_state (cited = ≥1 verified citation / referenced = sourced-but-unverified) + citations, across breastfeeding, pregnancy, histamine/MCAS, rosacea, HS, allergy, fertility, and toddler lenses. Includes validate_claim to fact-check a free-text health claim against curated cited sources.

Dream symbol interpretation and dream-dictionary lookups for AI agents, one API key.

Tarot card meanings, spreads and seeded reproducible readings for AI agents, one API key.

Western natal charts, horoscopes, transits and synastry for AI agents, verified vs NASA JPL.

City geocoding and timezone resolution for birth data, for AI agents, one API key.

Vedic kundli, panchang, dashas, nakshatras and KP charts for AI agents, one API key.

CatchAll is a web search API built for comprehensive event retrieval — not ranked results, but all matching records.