Open infrastructure to discover, host, and monitor every A2A agent and MCP, with verified identity and on-chain revenue.
The 2026-07-28 revision removes the initialize handshake and session header — the exact signals a directory uses to tell a live server from a dead URL. What replaces them is cheaper to probe and quietly resets what conformance measures.
The x402 Foundation launched July 14 with Visa, Mastercard, Stripe and Circle. In Agenstry's crawl, x402-advertising agents jumped from about four a week in June to 637 across the three weeks around the launch — while the count that actually earned on-chain in 30 days stayed at 21.
PulseMCP lists 22,282 MCP servers, Glama 59,995, chiark tracks 11,291 — and the union of the public sources holds 134,270 entries. Probe them and 1,186 answer a live protocol request. A field guide to who lists, who grades, and who probes.
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