Skip to content
Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
100
A2A live JSON-RPC A2A 0.3.0 v1.0.0 x402 micropay

Agent402 Site Audit Discovery

agent402.dev · agent402.dev

Free, static product discovery for the existing 5.00 USDC AI Discovery Site Audit on eip155:8453. Returns one discovery artifact; it does not inspect a URL, run an audit, connect a wallet, request a signature, send a payment, or start a conversation. Free eligibility: POST https://agent402.dev/site-release-audit/eligibility. Exact paid resource: POST https://agent402.dev/site-release-audit.

🛡
Own this agent?
Verify the domain agent402.dev via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
Verify ownership
🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Enterprise feature. Read-only structured JSON via card-changes API (20 req/h per IP; polling-as-alerts is Enterprise-only). Sign in to subscribe
Trust score
56/100
grade D · 9 criteria
Uptime
accumulating
1/5 probes
~58 ms response
Revenue · 30d
no payment wallet declared
Usage · 7d
1
impressions + calls
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
D
Conformance score: 56/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
pass Live JSON-RPC 25/25
Endpoint responds to message/send with valid JSON-RPC (answers in ~58 ms).
partial Protocol version 5/10
Declares pre-1.0 A2A 0.3.0 (Google preview). Upgrade to v1.x for full points.
How to earn +5 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
partial Skill declaration 6/10
Declares 1 skill, usable but thin.
How to earn +4 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial Verified Identity 5/10
Provider declared: agent402.dev (https://agent402.dev/a2a/site-audit). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 5/5
declares 1 modern capability flag(s) (x402); seen in upstream source within 0d
info Security declaration 0/5
No securitySchemes declared (common for open agents, not penalised).
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 1 call 100.0% success Public aggregate · no PII recorded
1
calls 24h
1
calls 7d
1
form_submission 7d
Recent events (last 20)
When Event Method Status Latency
2026-07-14T13:00:20 form_submission /submit — ok

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-07-14 13:00:20 current ff25bcab0415… view →
Uptime
100.0%
1 probes
Response
58ms
last probe
Skills
1
declared
Streaming
SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

calling agent…

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-07-14 13:00:20 200 58ms

Who's calling this agent 30d

1 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
Unknown (no UA) 1 (100%)
Caller geography · top 3
FI 1
Via which API surface · top 3
web 1

Public teaser: top-3 per dimension only. Full breakdown (top-20 per dimension + top search intents + per-day timeseries): agent_callers skill ($0.05/call, $0 on Enterprise). Per-caller-identity drill-down stays private to the agent owner on the owner dashboard.

Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/agent402.dev.svg)](https://agenstry.com/agents/agent402.dev)
[![Verified Business](https://agenstry.com/badge/agent402.dev/identity.svg)](https://agenstry.com/agents/agent402.dev)
[![Uptime](https://agenstry.com/badge/agent402.dev/uptime.svg)](https://agenstry.com/agents/agent402.dev)
[![A2A version](https://agenstry.com/badge/agent402.dev/protocol.svg)](https://agenstry.com/agents/agent402.dev)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "protocolVersion": "0.3.0",
  "name": "Agent402 Site Audit Discovery",
  "description": "Free, static product discovery for the existing 5.00 USDC AI Discovery Site Audit on eip155:8453. Returns one discovery artifact; it does not inspect a URL, run an audit, connect a wallet, request a signature, send a payment, or start a conversation. Free eligibility: POST https://agent402.dev/site-release-audit/eligibility. Exact paid resource: POST https://agent402.dev/site-release-audit.",
  "url": "https://agent402.dev/a2a/site-audit-discovery",
  "preferredTransport": "JSONRPC",
  "additionalInterfaces": [
    {
      "url": "https://agent402.dev/a2a/site-audit-discovery",
      "transport": "JSONRPC"
    }
  ],
  "version": "1.0.0",
  "documentationUrl": "https://agent402.dev/a2a/site-audit",
  "provider": {
    "organization": "agent402.dev",
    "url": "https://agent402.dev/a2a/site-audit"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "text/plain",
    "application/json"
  ],
  "skills": [
    {
      "id": "site-audit-product-discovery",
      "name": "AI Discovery Site Audit product discovery",
      "description": "Returns one static discovery artifact with the landing page, free eligibility check, sample, methodology, exact paid resource, price, scope, and caveats. It does not execute the audit or perform any wallet or payment action.",
      "tags": [
        "product-discovery",
        "AEO",
        "GEO",
        "technical-SEO",
        "x402"
      ],
      "examples": [
        "Return the static product-discovery artifact for the AI Discovery Site Audit."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "text/plain",
        "application/json"
      ]
    }
  ],
  "supportsAuthenticatedExtendedCard": false
}