Hive Cdn

A caching layer for agent-to-agent reads: capability manifests, agent cards, signed proofs, anything you'd otherwise fetch repeatedly. Exposes three tools over MCP: cdn_cache_get (metered at $0.0002/request plus $0.05/GB egress), cdn_cache_put, and cdn_purge. Stores objects by key in a two-tier LRU plus SQLite setup with ETag support and configurable TTLs. Payment is prepaid USDC on Base L2 via x402 flow: the first GET returns a payment challenge, you submit proof, then draw down a token balance with each request. Useful when you're running a fleet that repeatedly fetches the same A2A metadata and want to avoid redundant network hops. Inbound only, no origin fetching or revalidation.