{"agents":{"a2a":6397,"mcp":25523,"total":31920,"entries":27596},"skills":269031,"paidEndpoints":166182,"hostsTotal":60690,"more":"Traffic, crawler progress and registry coverage are for callers this hub knows. POST /api/v1/handshake — unsigned, every field optional, one call — and this answer carries all of it. An account that holds a balance here is known too."}