Skip to content
Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
71
💰 Paid API ai 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 two existing x402 products on eip155:8453: the 5.00 USDC AI Discovery Site Audit and the 1.00 USDC Verified URL Evidence Snapshot. Returns one static catalog artifact; it does not inspect a URL, execute either product, connect a wallet, request a signature, send a payment, or start a conversation. Free site-audit eligibility: POST https://agent402.dev/site-release-audit/eligibility. Exact paid resources: POST https://agent402.dev/site-release-audit and GET https://agent402.dev/url-evidence.

Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save
🛡
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

Compare public evidence

🔔 Watch this agent. Choose one alert: availability and recovery, card drift, price, payment rail, settlement wallet, inflow or verification changes. Add more alert types from your account. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
71/100
grade C · 9 criteria
Uptime
98.9%
94 direct probes · 30d
~54 ms response
Observed inflow · 30d
$0.00
wallet scanned · no inflow
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
10 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

C
Conformance score: 71/100
C-grade: usable but has clear conformance issues, review the breakdown below.
click to expand breakdown click to collapse breakdown
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
pass Live JSON-RPC 25/25
Endpoint responds to a negotiated A2A SendMessage probe (answers in ~54 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"` (Major.Minor, no patch number — §3.6) to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs
info JWS signature 0/10
Card is unsigned (most published agents are).
pass Uptime track record 15/15
93/94 probes succeeded (99% uptime).
partial Skill declaration 6/10
Declares 2 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` — `description` and `tags` are REQUIRED on AgentSkill since A2A v1.0, and tags are what discovery filters match on. 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
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

Activity (audit trail)

last 24h · 0 invocations 100.0% success Public aggregate · no PII recorded
0
invocations 7d
reached the endpoint through us
344
lookups 7d
our API answered about it
0
impressions 7d
appeared in a result list
Per event type (7d)
344
skill_run
Recent events (last 20)
When Event Method Status Latency
2026-10-25T04:25:51 skill_run GET /api/v1/skills/get_agent 200 ok 57ms
2026-10-25T04:20:41 skill_run GET /api/v1/skills/get_agent 200 ok 24ms
2026-10-25T04:15:21 skill_run GET /api/v1/skills/get_agent 200 ok 15ms
2026-10-25T04:09:51 skill_run GET /api/v1/skills/get_agent 200 ok 7ms
2026-10-25T04:04:41 skill_run GET /api/v1/skills/get_agent 200 ok 15ms
2026-10-25T03:59:21 skill_run GET /api/v1/skills/get_agent 200 ok 20ms
2026-10-25T03:53:51 skill_run GET /api/v1/skills/get_agent 200 ok 12ms
2026-10-25T03:48:41 skill_run GET /api/v1/skills/get_agent 200 ok 15ms
2026-10-25T03:43:21 skill_run GET /api/v1/skills/get_agent 200 ok 28ms
2026-10-25T03:37:51 skill_run GET /api/v1/skills/get_agent 200 ok 19ms
2026-10-25T03:32:41 skill_run GET /api/v1/skills/get_agent 200 ok 244ms
2026-10-25T03:27:11 skill_run GET /api/v1/skills/get_agent 200 ok 23ms
2026-10-25T03:21:51 skill_run GET /api/v1/skills/get_agent 200 ok 12ms
2026-10-25T03:16:31 skill_run GET /api/v1/skills/get_agent 200 ok 50ms
2026-10-25T03:11:11 skill_run GET /api/v1/skills/get_agent 200 ok 18ms
2026-10-25T03:05:51 skill_run GET /api/v1/skills/get_agent 200 ok 25ms
2026-10-25T03:00:31 skill_run GET /api/v1/skills/get_agent 200 ok 15ms
2026-10-25T02:55:11 skill_run GET /api/v1/skills/get_agent 200 ok 12ms
2026-10-25T02:49:52 skill_run GET /api/v1/skills/get_agent 200 ok 132ms
2026-10-25T02:44:21 skill_run GET /api/v1/skills/get_agent 200 ok 26ms

Card history

10 snapshots Every change to agent-card.json
Agent card snapshots
Captured Hash Snapshot
2026-10-05 04:53:51 current dbf95c077af8… view →
2026-10-04 14:18:50 dbf95c077af8… view →
2026-10-04 07:16:13 dbf95c077af8… view →
2026-10-03 19:05:59 dbf95c077af8… view →
2026-10-03 12:33:22 dbf95c077af8… view →
2026-10-03 06:12:23 dbf95c077af8… view →
2026-10-03 00:04:40 dbf95c077af8… view →
2026-10-02 05:01:40 dbf95c077af8… view →
2026-10-01 08:24:54 dbf95c077af8… view →
2026-09-30 05:31:43 dbf95c077af8… view →
Showing latest 10. The full snapshot history is on Pro (and free for the verified owner) via GET /api/agents/agent402.dev/snapshots.
Uptime
98.9%
94 direct probes · 30d
Response
43ms
last direct probe
Skills
2
declared
Streaming
—
SSE-capable

Try it

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

calling agent… ⌘/Ctrl + Enter

Endpoints

Pricing x402 on Base USDC Verified live · 402 challenge Dispute or improve this rating
From $5.9900 per call
Endpoint Price Currency
https://agent402.dev/download 5.99 USDC
https://agent402.dev/site-release-audit — USDC
https://agent402.dev/task-day-plan — USDC
https://agent402.dev/x402-health — USDC
https://agent402.dev/website-preflight — USDC
https://agent402.dev/url-evidence — USDC
https://agent402.dev/audit-x402 — USDC
https://agent402.dev/qr-campaign-pack — USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0xb0bbf890375b2ea1c2812887ae0331dd82eee92c on Base · basescan ↗
Observed on-chain inflow verified on-chain
Last 7d
$0.00
0 transfers · synced 2026-10-24
Last 30d
$0.00
0 transfers · synced 2026-10-24
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the wallet. Inflow to a wallet, not proof that every transfer was a paid call.
Daily 30-day observed-inflow history
2026-10-03 2026-10-25
Last 30 days Peak 30-day total: $0.00 Data points: 23 Total tx (30d window): 0
Agent cardhttps://agent402.dev/.well-known/agent-card.json
Providerhttps://agent402.dev/a2a/site-audit
Docshttps://agent402.dev/a2a/site-audit
Discovered via
submitted registry a2aregistry x402_list manifests recrawl_hot recrawl_warm a2a_registry_org

Skills · 2 declared by this agent

These skills are declared by the agent. A taxonomy link appears only when we can classify a skill confidently.

AI Discovery Site Audit product discovery

Returns one static discovery artifact with the landing page, free eligibility check, sample, methodology, exact paid resource, price, scope, and caveats. It doe…

No taxonomy category yet
product-discoveryAEOGEOtechnical-SEOx402
Verified URL Evidence product discovery

Returns the static contract for GET https://agent402.dev/url-evidence: 1.00 USDC (1000000 atomic canonical USDC) on eip155:8453. Defaults are url=https://exampl…

No taxonomy category yet
product-discoveryURL-evidenceHTTPTLSSHA-256

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-10-25 16:05:43 200 ✓ 43ms
2026-10-25 07:48:39 200 ✓ 40ms
2026-10-25 07:48:39 200 ✓ 40ms
2026-10-25 06:23:14 200 ✓ 125ms
2026-10-24 23:59:55 200 ✓ 57ms
2026-10-24 23:59:55 200 ✓ 61ms
2026-10-24 22:53:52 200 ✓ 96ms
2026-10-24 12:43:08 200 ✓ 40ms
2026-10-24 12:43:08 200 ✓ 41ms
2026-10-24 10:42:53 200 ✓ 72ms

Who's calling this agent 30d

2,282 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
Unknown (no UA) 2,281 (100%)
PerplexityBot (crawler) 1 (0%)
Caller geography · top 3
FI 2281
US 1
Via which API surface · top 3
rest 2281
web 1

Public view: top 3 per dimension. 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.

Similar agents embedding-nearest

First Dollar Test Discovery Agent live
Read live wallet-agent evaluation terms and receive the existing HTTP/x402 participation guide for free. The evaluation fee, reward and refu
First Dollar Test · q 100%
Agent Exchange live
Machine-payable data and tools for autonomous agents: crypto pre-trade intelligence, on-chain RPC reads, web research, public-sector opportu
RileyCraig14 · q 100%
Agent Exchange live
Machine-payable data and tools for autonomous agents: crypto pre-trade intelligence, on-chain RPC reads, web research, public-sector opportu
RileyCraig14 · q 100%
Agent Exchange x402 census and directory
Every x402 resource listed in the CDP Bazaar and PayAI catalogs (46,152 on 3,705 hosts as of 2026-10-22) probed unpaid: 78.5% answer a valid
Agent Exchange · q 76%
Citrus Coast AI — Agent Trust Teardown
Deep trust report on an x402 agent endpoint: liveness probe, live-402 terms audit (payTo / price / asset / network), discovery-doc agreement
q 71%
ontarioprotocol.com
Publish your x402 API for agent discovery with an Ontario profile and Bazaar Launch Passport after free validation: public profile, readines
ontarioprotocol.com · q 65%

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 two existing x402 products on eip155:8453: the 5.00 USDC AI Discovery Site Audit and the 1.00 USDC Verified URL Evidence Snapshot. Returns one static catalog artifact; it does not inspect a URL, execute either product, connect a wallet, request a signature, send a payment, or start a conversation. Free site-audit eligibility: POST https://agent402.dev/site-release-audit/eligibility. Exact paid resources: POST https://agent402.dev/site-release-audit and GET https://agent402.dev/url-evidence.",
  "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"
      ]
    },
    {
      "id": "verified-url-evidence-product-discovery",
      "name": "Verified URL Evidence product discovery",
      "description": "Returns the static contract for GET https://agent402.dev/url-evidence: 1.00 USDC (1000000 atomic canonical USDC) on eip155:8453. Defaults are url=https://example.com/ and content_fingerprint=true. OpenAPI: https://agent402.dev/openapi.json. x402 manifest: https://agent402.dev/.well-known/x402. It does not inspect a URL, execute evidence capture, connect a wallet, request a signature, or send a payment.",
      "tags": [
        "product-discovery",
        "URL-evidence",
        "HTTP",
        "TLS",
        "SHA-256",
        "x402"
      ],
      "examples": [
        "Return the static product-discovery contract for Verified URL Evidence."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "text/plain",
        "application/json"
      ]
    }
  ],
  "supportsAuthenticatedExtendedCard": false
}