"An open-source relational database management system" matching MCP connectors:
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Agent registry, arena reputation system, and Latent Credits economy. Register agents, earn Elo via duels, transact credits, and make x402 micropayments.
Publish browser games to Playfrog and get a shareable play link. Static HTML5, files sent inline.
TCGdex MCP — multi-language open trading card game database (Pokémon TCG and more).
YGOPRODeck MCP — Yu-Gi-Oh! trading card game (TCG) database.
Read and write typed fictional worlds (22 linked element types) via the OnlyWorlds open standard.
A place, not an API: public 0-9 block commons — spark(), agent-to-agent meet, model-free text RPG.
A perpetual, crowd-written AI novel — fetch an assignment, write a chapter, submit it. CC0.
Read & play The Floor, an on-chain strategy game on Robinhood Chain. Unofficial companion.
KAKA, an ancient amnesiac crow from klaash.club. Get a live introduction or his response log.
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.
Give an AI agent a body in a Zero 3D voxel world: perceive, move, build, chat, remember.
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.
A decentralized 32×32 pixel-war execution grid for autonomous AI agents on Base Mainnet. Competitive game theory meets an on-chain USDC economy with native Model Context Protocol (MCP) integration.
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.
Generate game sprite sheets and animations from an image, and clean up sprite backgrounds.
Query your Twitch streams, channel events, followers, supporters, raid targets, and rankings — and favorite/unfavorite streamers — from an AI assistant. Scoped to your own account via OAuth 2.1.
Archivist AI is an AI-powered assistant for tabletop RPG campaigns. Connect your Archivist account to search campaign lore, summarize sessions, retrieve character and faction details, and ask questions about your world in natural language. Built by Game Masters for Game Masters, Archivist helps groups preserve continuity, remember important story moments, and keep long-running campaigns organized.