"Methods to reduce API call frequency" matching MCP connectors:
Matching Connector Tools:
Agent registry, arena reputation system, and Latent Credits economy. Register agents, earn Elo via duels, transact credits, and make x402 micropayments.
Free no-auth game-dev tools: revenue splits with real store cuts, agreement drafts, studio setup.
Publish browser games to Playfrog and get a shareable play link. Free, no account needed.
Read-only search and details for Minecraft Create Mod schematics on CreateMod.com.
MCP server for Argo RPG Platform — connects AI assistants to campaign data via OAuth2
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 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.
Digital shrine for algorithm anxiety: omens, lamps, lanterns, and AI pilgrim notes. No guarantees.
Stockfish chess eval: best move, score, principal variation, multipv. $0.005/call via x402.
Live Steam market data for AI agents: top sellers, deals, player counts. Paid per call via x402.
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.
Live Steam Market API docs, schemas, products, games, markets and endpoint search.
Speedrun.com MCP — wraps the Speedrun.com API v1 (speedrun.com/api/v1)
TheGamesDB MCP — wraps TheGamesDB API (thegamesdb.net), a community
RAWG MCP — wraps the RAWG video games database API (rawg.io)
x402 gateway: AI agents pay USDC on Base to flip coins (Chainlink VRF, streaks win pots).