Add Cosmic Live Data (geophysics API) to Data & Social APIs

[dotrockets]

Adds Cosmic Live Data to the Data & Social APIs section.

A live x402 endpoint serving real-time geophysics for AI agents: planetary KP-index, Schumann resonance amplitude measured at Tomsk State University (continuous since 1997), solar wind speed, and solar X-ray flux class. One JSON call, refreshed every 5 minutes.

• $0.05 USDC per call on Base mainnet
• Self-hosted facilitator (xpay), no API keys / no signup
• x402 v2 with Bazaar discovery extension
• Free rounded preview at /v1/preview
• Endpoint: https://x402.dotrockets.com/v1/cosmic

🤖 Generated with Claude Code

[TateLyman]

Ran a no-payment external reachability pass against the submitted public surface. I did not send payment headers, signatures, or paid calls.

Repro:

curl -L -sS -D - --max-time 15 https://x402.dotrockets.com/.well-known/x402 -o /tmp/x402
curl -L -sS -D - --max-time 15 https://x402.dotrockets.com/.well-known/x402.json -o /tmp/x402-json
curl -L -sS -D - --max-time 15 https://x402.dotrockets.com/.well-known/agent.json -o /tmp/agent-json
curl -L -sS -D - --max-time 15 https://x402.dotrockets.com/llms.txt -o /tmp/llms
curl -L -sS -D - --max-time 15 https://x402.dotrockets.com/v1/preview -o /tmp/preview
npx --yes x402-surface-check@latest --endpoint --method GET https://x402.dotrockets.com/v1/cosmic --origin https://x402.dotrockets.com

Observed from this network:

• /.well-known/x402, /.well-known/x402.json, /.well-known/agent.json, /llms.txt, and /v1/preview each timed out after 15s.
• The direct paid endpoint probe also failed at fetch/reachability before any 402 challenge could be observed.

Patch note before merge: verify public reachability from outside your deployment network and make sure the free preview plus discovery aliases return quickly. Once those respond, the next check is whether /v1/cosmic returns a structured x402 402 challenge before execution, with explicit no-store cache policy and browser-readable payment retry headers.