"Connecting external data sources for contextual LLM calls" 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.

Structured iGaming reference: slot specs & RTP variants, providers, regulators, news and jobs.

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

RedM (Red Dead Redemption 2 multiplayer) / RDR3 modding. Hosted HTTP endpo int: native lookups (hash ↔ name), semantic search over framework docs (VORP, RSGCore, oxmysql), and grep over `rdr3_discoveries` community data tables (peds, weapons, animations, AI flags, props). No install, no auth.

MCP server exposing live Helldivers 2 galactic war data.

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

Low-poly 3D models and kits for three.js and game engines: search, match, remix, preview.

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

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.

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

Real sold prices, history & PSA population for graded Pokémon cards (EN/JP/CN). Knows nicknames.

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

Final Fantasy Tactics game data across the PSX, War of the Lions and Ivalice Chronicles releases

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.

Free blind-play night-fishing game over MCP. Deterministic engine, zero LLM calls, save codes.

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

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

Esports cognitive-combine data over MCP: free cohort stats, paid player & team scouting reports.