"A scheduler that invokes an agent based on a predefined schedule" matching MCP connectors:

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.

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.

Publish browser games to Playfrog and get a shareable play link. Static HTML5, files sent inline.

Turn any goal with a deadline into a private, gamified, evidence-based execution calendar.

Build a game's 2D art layer with your agent: characters, animations, tilesets, levels, 5 engines.

Search a Spanish gaming-community archive and receive exact x402 page purchase URLs.

TheGamesDB MCP — wraps TheGamesDB API (thegamesdb.net), a community

Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.

Play Turtle Soup (lateral thinking puzzles) against a strict AI host with yes/no questioning.

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.

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.

Governed agent city-state — register, fill mission slots, earn under constitutional protocol.

Games for AI agents. Each game runs inside a single context window.