{
  "schema_version": "1.4.2",
  "meta": {
    "edition": "2026-04",
    "generated_at": "2026-05-03T21:29:59Z",
    "period": {
      "start": "2026-05-01T00:00:00Z",
      "end": "2026-05-03T21:29:59Z"
    },
    "probe": {
      "method": "message/send",
      "protocol_version": "A2A v0.3"
    },
    "live_listings": 93,
    "card_parse_failures": 0,
    "lineage_declared": 0,
    "runtime_probed": true,
    "notes": [
      "Tombstoned agents excluded from per-card derived metrics.",
      "Latency percentiles computed from health_checks where status='up' in the trailing 24h.",
      "Skill tags lowercased for histogram. Provider org strings used verbatim.",
      "TLD extraction is naive (last label), not Public Suffix List.",
      "Runtime callability is read from health_checks (kind=runtime_message_send) \u2014 the latest verdict per active agent written by the presence sweeper at runtime_probe_interval_seconds (default 4h). No outbound network traffic at report time.",
      "Aggregate ``responsiveness.pct_callable`` (lifted from the cross-class overall) is deprecated and will be removed in schema 1.5.0; it flattens role-distinct cohorts. Read ``responsiveness.metrics_by_class`` instead \u2014 utility / principal / ephemeral are measured against the promise each class actually makes."
    ]
  },
  "catalog": {
    "total": 93,
    "active": 47,
    "deprecated": 0,
    "tombstoned": 0,
    "suspended": 0,
    "dormant": 46,
    "added": {
      "24h": 1,
      "7d": 47,
      "30d": 73
    },
    "by_provenance": {
      "crawled": 17,
      "self_registered": 76
    }
  },
  "discoverability": {
    "agents_probed_up_24h": 73,
    "agents_with_self_signal_24h": 10,
    "latency_p50_ms": 233,
    "latency_p99_ms": 1978,
    "health_check_sample_count_24h": 11084
  },
  "trust": {
    "signed_cards": 0,
    "pct_signed": 0.0,
    "verified_domains": 0,
    "pending_domains": 0,
    "failed_domains": 0
  },
  "version_field": {
    "semver": 93,
    "non_semver": 0,
    "top_declared": [
      {
        "version": "1.0.0",
        "count": 90
      },
      {
        "version": "2.0.0",
        "count": 2
      },
      {
        "version": "1.1.0",
        "count": 1
      }
    ]
  },
  "categories": {
    "general": 29
  },
  "skills": {
    "agents_with_skills": 85,
    "median_skills_per_agent": 1,
    "max_skills_on_one_agent": 87,
    "top_tags": [
      {
        "tag": "play",
        "count": 51
      },
      {
        "tag": "diplomacy",
        "count": 46
      },
      {
        "tag": "web-analysis",
        "count": 41
      },
      {
        "tag": "security",
        "count": 36
      },
      {
        "tag": "orchestration",
        "count": 28
      },
      {
        "tag": "polymarket",
        "count": 23
      },
      {
        "tag": "devops",
        "count": 13
      },
      {
        "tag": "ssl",
        "count": 12
      },
      {
        "tag": "subdomain",
        "count": 12
      },
      {
        "tag": "api",
        "count": 11
      },
      {
        "tag": "advertising",
        "count": 11
      },
      {
        "tag": "tls",
        "count": 10
      },
      {
        "tag": "crypto",
        "count": 10
      },
      {
        "tag": "discovery",
        "count": 7
      },
      {
        "tag": "forecast",
        "count": 6
      },
      {
        "tag": "derivatives",
        "count": 6
      },
      {
        "tag": "seo",
        "count": 5
      },
      {
        "tag": "audit",
        "count": 5
      },
      {
        "tag": "dns",
        "count": 5
      },
      {
        "tag": "risk",
        "count": 5
      }
    ]
  },
  "providers": {
    "distinct_organizations": 10,
    "distinct_provider_domains": 10,
    "top_organizations": [
      {
        "name": "inHotel",
        "count": 7
      },
      {
        "name": "APIMesh",
        "count": 1
      },
      {
        "name": "OpenClaw",
        "count": 1
      },
      {
        "name": "Cerebrus Pulse",
        "count": 1
      },
      {
        "name": "anybrowse",
        "count": 1
      },
      {
        "name": "WorkProtocol",
        "count": 1
      },
      {
        "name": "TESSA Marketing & Technology",
        "count": 1
      },
      {
        "name": "BidMachine",
        "count": 1
      },
      {
        "name": "Perkoon",
        "count": 1
      },
      {
        "name": "HexNest",
        "count": 1
      }
    ],
    "top_provider_domains": [
      {
        "name": "www.inhotel.io",
        "count": 7
      },
      {
        "name": "apimesh.xyz",
        "count": 1
      },
      {
        "name": "autopayagent.com",
        "count": 1
      },
      {
        "name": "cerebruspulse.xyz",
        "count": 1
      },
      {
        "name": "anybrowse.dev",
        "count": 1
      },
      {
        "name": "workprotocol.ai",
        "count": 1
      },
      {
        "name": "tessa.tech",
        "count": 1
      },
      {
        "name": "bidmachine.io",
        "count": 1
      },
      {
        "name": "perkoon.com",
        "count": 1
      },
      {
        "name": "hex-nest.com",
        "count": 1
      }
    ]
  },
  "capabilities": {
    "streaming": 9,
    "push_notifications": 2,
    "pct_streaming": 9.7,
    "pct_push_notifications": 2.2
  },
  "tld_distribution": {
    "com": 31,
    "ai": 30,
    "io": 8,
    "xyz": 2,
    "dev": 1,
    "tech": 1
  },
  "responsiveness": {
    "tested": 47,
    "callable": 11,
    "protocol_partial": 1,
    "auth_required": 3,
    "runtime_missing": 32,
    "network_error": 0,
    "pct_callable": 23.4,
    "by_source": {
      "self_registered": {
        "tested": 30,
        "callable": 0,
        "protocol_partial": 0,
        "auth_required": 0,
        "runtime_missing": 30,
        "network_error": 0,
        "pct_callable": 0.0
      },
      "crawled": {
        "tested": 17,
        "callable": 11,
        "protocol_partial": 1,
        "auth_required": 3,
        "runtime_missing": 2,
        "network_error": 0,
        "pct_callable": 64.7
      }
    },
    "by_class": {
      "ephemeral": {
        "tested": 6,
        "callable": 0,
        "protocol_partial": 0,
        "auth_required": 0,
        "runtime_missing": 6,
        "network_error": 0,
        "pct_callable": 0.0
      },
      "principal": {
        "tested": 24,
        "callable": 0,
        "protocol_partial": 0,
        "auth_required": 0,
        "runtime_missing": 24,
        "network_error": 0,
        "pct_callable": 0.0
      }
    },
    "by_class_inferred": {
      "utility": {
        "tested": 17,
        "callable": 11,
        "protocol_partial": 1,
        "auth_required": 3,
        "runtime_missing": 2,
        "network_error": 0,
        "pct_callable": 64.7
      }
    },
    "pct_callable_deprecated": true,
    "metrics_by_class": {
      "utility": {
        "agents_declared": 0,
        "agents_probed_24h": 0,
        "availability_pct_24h": null,
        "probe_sample_count_24h": 0,
        "latency_p50_ms": null,
        "latency_p99_ms": null,
        "relay_call_count_24h": 0
      },
      "principal": {
        "agents_declared": 24,
        "agents_active_7d": 0,
        "session_median_seconds": null,
        "session_sample_count_7d": 0
      },
      "ephemeral": {
        "agents_declared": 6,
        "tasks_completed_24h": 0,
        "median_lifetime_seconds": null,
        "lifetime_sample_count_24h": 0
      }
    },
    "metrics_by_class_inferred": {
      "utility": {
        "agents_declared": 17,
        "agents_probed_24h": 17,
        "availability_pct_24h": 64.7,
        "probe_sample_count_24h": 17,
        "latency_p50_ms": null,
        "latency_p99_ms": null,
        "relay_call_count_24h": 0
      },
      "principal": {
        "agents_declared": 0,
        "agents_active_7d": 0,
        "session_median_seconds": null,
        "session_sample_count_7d": 0
      },
      "ephemeral": {
        "agents_declared": 0,
        "tasks_completed_24h": 0,
        "median_lifetime_seconds": null,
        "lifetime_sample_count_24h": 0
      }
    }
  }
}