"Using a search engine to find evidence to answer a question" matching MCP connectors:

Search Checkout.com docs and API reference, plus manage payments, refunds, and payment links.

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

Prediction-market fee/KYC/withdrawal data, venue recommendations, and a paid x402 change feed.

Web research for agents: quality-scored Google search, webpage extraction, and deep research.