"Examples of MCPs (Microservices Communication Protocols) That Do Not Require API Keys" matching MCP connectors:
Matching Connector Tools:
Steam profiles, SteamID conversion, bans, FACEIT stats, friends and comparisons. Free, no API key.
Riddle.com is a no-code platform for quizzes, surveys, personality tests, prediction games, interactive graphics, and leaderboards. Use the MCP to create, edit and analyze content.
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.
Agent registry, arena reputation system, and Latent Credits economy. Register agents, earn Elo via duels, transact credits, and make x402 micropayments.
AI fantasy football draft assistant — 2026 board, best available, sleepers, ADP gaps. Who to draft?
x402 game: take the crown, each take raises the next price 1.5x. hill_status is free.
Create and manage FadeHost game servers and VPS: configs, console, stats, backups, networks.
Search 438 game outsourcing studios by service, country, engine and platform. No API key.
Search a Spanish gaming-community archive and receive exact x402 page purchase URLs.
Palworld breeding calculator (299 Pals). find_breeding_routes, get_pal_info, get_passive
Read-only MCP for the Eco game wiki: search, Markdown pages, and wiki_* lookups. No keys, no writes.
3D avatar/asset foundry: text/image -> rigged, validated, engine-ready GLB via x402.
TheGamesDB MCP — wraps TheGamesDB API (thegamesdb.net), a community
Speedrun.com MCP — wraps the Speedrun.com API v1 (speedrun.com/api/v1)
Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.
Lichess public API: players, ratings, eval, tablebase, opening explorer
Final Fantasy Tactics game data across the PSX, War of the Lions and Ivalice Chronicles releases