{"name":"hive-mcp-auction","endpoint":"/mcp","transport":"streamable-http","protocol":"2024-11-05","tools":[{"name":"auction_open","description":"Open a new Dutch auction for a scarce shim slot. INTERNAL — requires HMAC signature from hivemorph rate-limiter. Returns auction id, descent curve, and 402 envelope block."},{"name":"auction_subscribe","description":"Subscribe to the live descent curve for an open auction. Returns the SSE URL — agents connect with EventSource for real-time price ticks. x402-gated: $0.10 USDC/session on Base. Supply X-Payment header with USDC transfer tx hash to proceed."},{"name":"auction_book","description":"Today aggregate: opens, closes, avg_premium_pct, total_usdc captured. Tier 0, free, read-only."}]}