"Information about MariaDB, an open-source relational database" matching MCP connectors:

Sports card database: card search, full set checklists, parallel lookup, card identification.

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.

Tennis Grand Slams 2026 MCP — Australian Open, Roland Garros, Wimbledon, US Open. Draws + venues.

Golf Majors 2026 — Masters, PGA Championship, US Open, The Open. Tournaments, venues, players.

First dedicated polo MCP — 2026 USPA, Argentine Triple Crown, British Open. Tournaments + players.