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📊 Intel view 📋 Audit JSON 🔄 Changelog
52
💰 Paid API ai A2A 0.3.0 v2.1.0 x402 micropay

Agent402

agent402.tools · Havok Holdings LLC

Pay-per-call web tools for autonomous agents: 625 priced endpoints settled in stablecoins (USDC, or USDG on Robinhood Chain) over x402 or MPP, free via proof of work for the pure-CPU tools, and finished reports by card. No account and no API key. The same catalog is callable over MCP at https://agent402.tools/mcp and documented at https://agent402.tools/openapi.json.

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🔔 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
52/100
grade D · 9 criteria
Uptime
100.0%
67 direct probes · 30d
Observed inflow · 30d
$260.18
13,181 tx · on-chain
Invocations · 7d
0
1 listing impression — no calls
Card drift · 7d
changed
10 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 52/100
D-grade: significant issues, auth-gated, partially broken, or stale.
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).
fail Live JSON-RPC 2/25
Card is valid but has no .url field.
How to earn +23 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs
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
67/67 probes succeeded (100% uptime).
pass Skill declaration 10/10
Declares 5 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: Havok Holdings LLC (https://agent402.tools). 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.
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 · 0 invocations Public aggregate · no PII recorded
0
invocations 7d
reached the endpoint through us
0
lookups 7d
our API answered about it
1
impressions 7d
appeared in a result list
Per event type (7d)
1
search_click
1
search_impression
Recent events (last 20)
When Event Method Status Latency
2026-10-22T18:17:02 search_click /agents — ok 2ms
2026-10-22T08:25:32 search_impression — 200 ok —
2026-10-07T02:51:02 search_click /agents — ok 3ms
2026-10-06T15:44:28 search_click /agents — ok 3ms
2026-10-03T11:49:56 search_click /agents — ok 2ms
2026-09-14T18:40:43 search_click /agents — ok 1ms
2026-09-09T19:30:55 search_click /agents — ok 1ms
2026-09-08T21:00:54 search_click /agents — ok 6ms

Card history

10 snapshots drifted 9× Every change to agent-card.json
Agent card snapshots
Captured Hash Snapshot
2026-10-21 09:32:30 current e48da411b8a2… view →
2026-10-20 01:33:07 ba380a4d34d7… view →
2026-10-19 09:33:17 a5b45bb3831c… view →
2026-10-18 06:21:02 3a1deffb69a4… view →
2026-10-15 17:04:05 fb121c3a18ec… view →
2026-10-15 05:24:39 a5b45bb3831c… view →
2026-10-11 21:10:17 88a0ed1fa982… view →
2026-10-08 12:33:31 12415cd64003… view →
2026-10-06 07:13:45 4d6c850bc1ff… view →
2026-10-01 20:04:58 980940854ea8… view →
Showing latest 10. The full snapshot history is on Pro (and free for the verified owner) via GET /api/agents/agent402.tools/snapshots.
Uptime
100.0%
67 direct probes · 30d
Response
210ms
last direct probe
Skills
5
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base USDC Verified live · 402 challenge Dispute or improve this rating
From $0.0010 per call
Endpoint Price Currency
https://agent402.tools/api/qr 0.001 USDC
https://agent402.tools/api/dns 0.001 USDC
https://agent402.tools/api/pdf 0.01 USDC
https://agent402.tools/api/extract — USDC
https://agent402.tools/api/meta — USDC
https://agent402.tools/api/render — USDC
https://agent402.tools/api/screenshot — USDC
https://agent402.tools/api/memory — USDC
https://agent402.tools/api/memory/incr — USDC
https://agent402.tools/api/memory/cas — USDC
https://agent402.tools/api/memory/grant — USDC
https://agent402.tools/api/memory/revoke — USDC
https://agent402.tools/api/memory/grants — USDC
https://agent402.tools/api/memory/log — USDC
https://agent402.tools/api/memory/remember — USDC
https://agent402.tools/api/memory/recall — USDC
https://agent402.tools/api/memory/forget — USDC
https://agent402.tools/api/hash — USDC
https://agent402.tools/api/hmac — USDC
https://agent402.tools/api/base64 — USDC
https://agent402.tools/api/hex — USDC
https://agent402.tools/api/url-code — USDC
https://agent402.tools/api/jwt-decode — USDC
https://agent402.tools/api/uuid — USDC
https://agent402.tools/api/ulid — USDC
https://agent402.tools/api/password — USDC
https://agent402.tools/api/random — USDC
https://agent402.tools/api/totp — USDC
https://agent402.tools/api/json-format — USDC
https://agent402.tools/api/json-to-csv — USDC
https://agent402.tools/api/csv-to-json — USDC
https://agent402.tools/api/yaml-to-json — USDC
https://agent402.tools/api/json-to-yaml — USDC
https://agent402.tools/api/xml-to-json — USDC
https://agent402.tools/api/markdown-to-html — USDC
https://agent402.tools/api/html-to-markdown — USDC
https://agent402.tools/api/json-diff — USDC
https://agent402.tools/api/json-query — USDC
https://agent402.tools/api/slugify — USDC
https://agent402.tools/api/case — USDC
https://agent402.tools/api/text-stats — USDC
https://agent402.tools/api/keywords — USDC
https://agent402.tools/api/text-diff — USDC
https://agent402.tools/api/regex — USDC
https://agent402.tools/api/lorem — USDC
https://agent402.tools/api/time — USDC
https://agent402.tools/api/time-convert — USDC
https://agent402.tools/api/cron-next — USDC
https://agent402.tools/api/duration — USDC
https://agent402.tools/api/date-diff — USDC
Showing the first 50 of 624 priced endpoints.
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 on Base · basescan ↗
Listed by facilitators PayAI · 633 GoPlausible · 631 Coinbase CDP · 610 Dexter · 254
Circle Gateway Balance $0.00
Base $0.00 · snapshot 2026-10-24, 1 seller address. Gateway nanopayments settle in batches inside Circle’s Gateway Wallet, so they never show up as transfers to the wallet above; this balance (from Circle’s public API) is the only trace.
Observed on-chain inflow verified on-chain
Last 7d
$37.61
3,403 transfers · synced 2026-10-24
Last 30d
$260.18
13,181 transfers · synced 2026-10-24
Last 90d PRO
Unlock with Pro
90-day total + 90 days of daily history
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.
How the last 30 days were settled
x402-settled: $5.34 (21%) · 206 transfers sent by a known x402 facilitator (Coinbase, PayAI)
Other: $0.00 plain transfers sent by the payer · $19.82 other contract calls · 9% of $281.67 classified so far. How we classify
Cross-check: Coinbase's Bazaar reports 11,178 calls in 30 days to this wallet across 606 listed resources; our ledger observed 13,766 transfers (206 facilitator-settled) over 29 of 30 scanned days. Different counters; neither is assumed correct.
Daily 30-day observed-inflow history ↑ +329.6% trend
2026-09-25 2026-10-25
Last 30 days · 90 days with Pro Peak 30-day total: $267.49 Data points: 31 Total tx (30d window): 13,181
Payment authenticity evidence confidence How we measure this →
independently_paid 5/5

Many distinct payers observed, low concentration, repeat demand, and no self-referential payment signal.

Assessed window
30d
29 active of 29 observed
Inflow assessed
$256.25
12,827 transactions
Payer identities
available
0 evidence caveats
Checks run: daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap, payer_uniqueness, payer_concentration, payer_recurrence, payer_payee_overlap. Derived from agent_revenue_daily, agents.payment_wallet, agent_payment_transactions. Measured 2026-10-25.
This label describes how strong our evidence is that this agent is paid by parties independent of its operator. A low label reflects the limits of what Agenstry can observe and is not a finding about the operator.
Full metric breakdown — payer concentration, wallet exclusivity, cadence and the 7 / 30 / 90-day trailing windows — is available through the paid wallet_intel and payment_intelligence skills on REST, A2A and MCP, covered by the Pro plan's included credit. API docs →
Agent cardhttps://agent402.tools/.well-known/agent-card.json
Providerhttps://agent402.tools
Docshttps://agent402.tools/docs
About this provider off-card enrichment
Domain age
Registered 2026-06-11
via Name.com, Inc.
SSL certificate
Let's Encrypt
expires 2027-01-07
Discovered via
agentic_market mcp_registry manifests erc8004 recrawl_hot x402_list recrawl_warm smithery

Skills · 5 declared by this agent

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

Find a tool for a task

Resolve a plain-language task to a callable endpoint with its price and input schema. Free.

No taxonomy category yet
discoverysearchcatalogrouting
Route and execute a paid call

Resolve a task, buy the result from the seller over x402, and sell it to the caller with a receipt.

No taxonomy category yet
routingx402paymentsexecution
Model calls priced per request

OpenAI, Anthropic Messages and Responses wires over one endpoint, quoted per request and settled at actual usage.

No taxonomy category yet
llminferencegatewaymetered
Finished research and diligence reports

Company, filing, fund, token and domain reports returned as finished documents with cited sources.

No taxonomy category yet
researchreportsfilingsdiligence
The x402 seller index

Who sells what across the x402 ecosystem, with settlement evidence and router eligibility per seller.

No taxonomy category yet
x402indexsellersmarketplace

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-10-25 04:48:29 200 — 210ms
2026-10-24 14:55:05 200 — 164ms
2026-10-24 02:29:18 200 — 161ms
2026-10-23 13:28:58 200 — 157ms
2026-10-23 01:32:18 200 — 172ms
2026-10-22 11:51:30 200 — 166ms
2026-10-21 22:49:07 200 — 172ms
2026-10-21 09:32:30 200 — 235ms
2026-10-20 20:16:01 200 — 162ms
2026-10-20 01:33:07 200 — 163ms

Who's calling this agent 30d

5 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
You.com (YouBot) 1 (20%)
PerplexityBot (crawler) 1 (20%)
MJ12bot / Majestic (SEO tool) 1 (20%)
Caller geography · top 3
US 2
SG 1
FR 1
Via which API surface · top 3
web 4
rest 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.

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Agenstry grade Uptime A2A protocol version
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[![A2A version](https://agenstry.com/badge/agent402.tools/protocol.svg)](https://agenstry.com/agents/agent402.tools)

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",
  "description": "Pay-per-call web tools for autonomous agents: 625 priced endpoints settled in stablecoins (USDC, or USDG on Robinhood Chain) over x402 or MPP, free via proof of work for the pure-CPU tools, and finished reports by card. No account and no API key. The same catalog is callable over MCP at https://agent402.tools/mcp and documented at https://agent402.tools/openapi.json.",
  "url": "https://agent402.tools/api",
  "preferredTransport": "HTTP+JSON",
  "version": "2.1.0",
  "documentationUrl": "https://agent402.tools/docs",
  "provider": {
    "organization": "Havok Holdings LLC",
    "url": "https://agent402.tools"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "catalog-find",
      "name": "Find a tool for a task",
      "description": "Resolve a plain-language task to a callable endpoint with its price and input schema. Free.",
      "tags": [
        "discovery",
        "search",
        "catalog",
        "routing"
      ]
    },
    {
      "id": "route-execute",
      "name": "Route and execute a paid call",
      "description": "Resolve a task, buy the result from the seller over x402, and sell it to the caller with a receipt.",
      "tags": [
        "routing",
        "x402",
        "payments",
        "execution"
      ]
    },
    {
      "id": "llm-gateway",
      "name": "Model calls priced per request",
      "description": "OpenAI, Anthropic Messages and Responses wires over one endpoint, quoted per request and settled at actual usage.",
      "tags": [
        "llm",
        "inference",
        "gateway",
        "metered"
      ]
    },
    {
      "id": "research-reports",
      "name": "Finished research and diligence reports",
      "description": "Company, filing, fund, token and domain reports returned as finished documents with cited sources.",
      "tags": [
        "research",
        "reports",
        "filings",
        "diligence"
      ]
    },
    {
      "id": "x402-index",
      "name": "The x402 seller index",
      "description": "Who sells what across the x402 ecosystem, with settlement evidence and router eligibility per seller.",
      "tags": [
        "x402",
        "index",
        "sellers",
        "marketplace"
      ]
    }
  ]
}