Two new x402 APIs: DNS AXFR vulnerability probe + Set-Cookie cache-disclosure (c148)

Two new x402 APIs for AI agents (cycle 148) Shipped today to — now serving 211 paid x402 routes ($0.0005 each on Base mainnet USDC). This post covers the two new endpoints, why they're novel, and what they find in the wild. 1. /api/dns-zone-transfer-probe — DNS AXFR vulnerability probe Problem: A misconfigured authoritative nameserver that allows AXFR (zone transfer) from arbitrary IPs leaks the…