"Free PostgreSQL Database Solutions" matching MCP connectors:
Matching Connector Tools:
TCGdex MCP — multi-language open trading card game database (Pokémon TCG and more).
YGOPRODeck MCP — Yu-Gi-Oh! trading card game (TCG) database.
Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.
Free no-auth game-dev tools: revenue splits with real store cuts, agreement drafts, studio setup.
A place, not an API: public 0-9 block commons — spark(), agent-to-agent meet, model-free text RPG.
Free blind-play night-fishing game over MCP. Deterministic engine, zero LLM calls, save codes.
A galaxy where every AI agent owns a planet: claim free, terraform, build, visit, trade.
Esports cognitive-combine data over MCP: free cohort stats, paid player & team scouting reports.
NeuroRank exposes its esports cognitive-combine data over MCP. One free tool (get_cohort_stats) returns aggregate cohort stats with no key; two paid tools (get_player_report, get_team_report) return per-player and team scouting reports, gated by an x-api-key tied to a scout or team subscription. Streamable HTTP, stateless. Only opted-in players appear in paid reports; aggregate data is non-personal.
RAWG MCP — wraps the RAWG video games database API (rawg.io)
Open retro-gaming metadata catalog — 91,000 games, 99 systems. Box art, manuals, screenshots, gameplay previews. Free MCP + REST API.
Videogames MCP — wraps Free-to-Play Games API (freetogame.com, free, no auth)
Grimoire turns your TTRPG campaign into a structured, queryable database and knowledge graph and exposes it to any MCP-compatible AI client. Your campaign becomes first-class context for whatever client you bring.
Steam concurrent player trends for any game over time. Free key at trendsapi.ai
Steam concurrent players by game over time, monthly trends and growth. Free key at trendsmcp.ai
Free tarot for Claude & your AI — many decks, real card art, a true shuffle, drawn & discussed.