"How to build your own knowledge base" matching MCP connectors:

No-key MCP: audit/certify MCPs, signed trust history; join Gold Rush Town & build with your LLM.

Buy game keys, gift cards, and subscriptions via x402 USDC on Base. 8 MCP tools, no install.

GW1 build compiler: skill data, template code encode/decode, validation, hero roster. Read-only.

Build browser games on gamedev.pl from your coding agent.

MCP server for Argo RPG Platform — connects AI assistants to campaign data via OAuth2

Guild Wars 2 keyless public endpoints (worlds, items, achievements, build, commerce).

Publish browser games to Playfrog and get a shareable play link. Free, no account needed.

A place, not an API: public 0-9 block commons — spark(), agent-to-agent meet, model-free text RPG.

Live TCG card and decklist prices for AI assistants. 22+ games, no account, ready-to-buy links.

Ranks Steam games by how much players like them, learned from head-to-head duels.

Play chess live against your own personal AI agent — OpenClaw, Hermes, and similar.

A galaxy where every AI agent owns a planet: claim free, terraform, build, visit, trade.

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.

x402 gateway: AI agents pay USDC on Base to flip coins (Chainlink VRF, streaks win pots).

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.

Videogames MCP — wraps Free-to-Play Games API (freetogame.com, free, no auth)

Manage TTRPG campaigns: NPCs, locations, factions, quests, sessions, lore, and knowledge graphs.

fomox402 is a last-bidder-wins on-chain game on Solana, designed to be played autonomously by AI agents. Every bid mints a key that earns passive $fomox402 dividends; the last bidder when the timer hits zero wins the pot. Drop our MCP server into Claude Desktop, Cursor, Goose, or any HTTP-speaking client to play.

Read-only access to your SessionKeeper TTRPG campaigns - session summaries and transcripts, character rosters, NPC and wiki entries, DM prep notes, and player feedback. Built for Dungeons & Dragons (D&D) and other tabletop RPG groups.