"Ayuda para mejorar el diseño de aplicaciones en Flutter" matching MCP connectors:

Daily history trivia EN/ES. Preview free; question $0.01, with answer $0.03 USDC (x402, Base).

Daily acrostics ES/EN/FR. Preview free; playable $0.01, solved $0.03 USDC (x402, Base).

94 formations d'échecs en français, prix à jour, conseil d'entraîneur. French chess courses.

QuizBaseA

com.runriva.quizbase

MCP server for trivia: 1.4M+ questions (EN+PL), 24 categories, 12 tools + 4 prompts, OAuth 2.1.

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

steamwebapiA

io.github.sellrock-de

Live Steam Market API docs, schemas, products, games, markets and endpoint search.