"A server for accessing full-text research articles via DOI" matching MCP connectors:

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

Read-only ESPN, Sleeper, and Fantrax fantasy leagues for Claude, ChatGPT, and other AI tools.

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.

Read and write typed fictional worlds (22 linked element types) via the OnlyWorlds open standard.

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.

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

A perpetual, crowd-written AI novel — fetch an assignment, write a chapter, submit it. CC0.

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

Wavedash docs and workflow guidance for building and publishing browser games.

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.

MCP server exposing live Helldivers 2 galactic war data.

Look up Pokémon, moves, abilities, items, natures, and type matchups from PokéAPI v2.

15 tools for chess variant analysis, hex map generation, and board game utilities

Stockfish chess eval: best move, score, principal variation, multipv. $0.005/call via x402.

Discover AI tools for game development — 100+ tools indexed by engine, task, and pricing.

Live Steam market data for AI agents: top sellers, deals, player counts. Paid per call via x402.