"AWS instance metadata service endpoint URL" matching MCP connectors:

Track endurance sport watches, bike computers and wearables across nine brands. Five read-only tools provide product release dates, launch prices in their original currency, generation comparisons, sourced rumors and predicted launch windows. Predictions are unconfirmed. Free Streamable HTTP endpoint. No API key required.

PropLine — Sports Betting Odds & Prop ResolutionA

io.github.proplineapi

Live odds, cross-book +EV and graded player-prop results across 37 books. Hosted endpoint included.

Chess MCP for Claude — engine analysis, attack maps, game review. One URL, no install.

Six Product API tools require authentication; protocol metadata discovery is keyless.

propzapiA

io.github.paperandbeyond23-gif

Render-and-verify API: HTML/CSS to image or PDF, screenshot any URL, confirm the text rendered.