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📊 Intel view 📋 Audit JSON 🔄 Changelog
85
A2A A2A 0.3 v1.0.0 x402 micropay

x402

docs.x402.org · x402
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🛡
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Verify the domain docs.x402.org 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.
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🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. 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
48/100
grade D · 9 criteria
Uptime
100.0%
55 direct probes · 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
2 listing impressions — no calls
Card drift · 7d
changed
10 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 48/100
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 (Google preview). Upgrade to v1.x for full points.
How to earn +5 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` 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
55/55 probes succeeded (100% uptime).
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: x402 (https://docs.x402.org/). 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 1d
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 100.0% success Public aggregate · no PII recorded
0
invocations 7d
reached the endpoint through us
0
lookups 7d
our API answered about it
2
impressions 7d
appeared in a result list
Per event type (7d)
4
search_click
2
search_impression
Recent events (last 20)
When Event Method Status Latency
2026-09-08T15:57:57 search_impression — 200 ok —
2026-09-08T15:30:17 search_impression — 200 ok —
2026-09-07T13:39:34 search_click /agents — ok 2ms
2026-09-06T18:11:35 search_click /agents — ok 2ms
2026-09-03T22:46:07 search_click /agents — ok 1ms
2026-09-01T22:46:07 search_click /agents — ok 2ms
2026-08-11T20:09:14 search_impression — 200 ok —
2026-08-11T20:01:10 search_impression — 200 ok —
2026-08-11T20:01:10 search_impression — 200 ok —
2026-06-06T14:42:26 search_impression — 200 ok —
2026-06-05T15:06:48 search_impression — 200 ok —
2026-06-05T15:06:26 search_impression — 200 ok —
2026-05-29T18:47:58 search_impression — 200 ok —

Card history

10 snapshots drifted 9× Every change to agent-card.json
Captured Hash
2026-09-06 05:13:33 current e1bf0b8e9a36… view →
2026-09-04 02:23:01 ca3f81cbae7f… view →
2026-09-01 12:12:05 0941d641b1dd… view →
2026-08-27 08:36:35 a66535d6384c… view →
2026-08-26 07:47:11 60e1717a0a65… view →
2026-08-23 03:32:00 d94d99ff8908… view →
2026-08-22 04:26:46 12f8c115c6cc… view →
2026-08-19 11:12:38 b8449bd4d07c… view →
2026-08-18 09:51:46 8dbc0a0784b5… view →
2026-08-15 03:00:32 49d00bc453ca… view →
Showing latest 10. Older snapshots available via GET /api/agents/docs.x402.org/snapshots.
Uptime
100.0%
55 direct probes · 30d
Response
105ms
last direct probe
Skills
1
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://docs.x402.org/.well-known/agent-card.json
Providerhttps://docs.x402.org/
Docshttps://docs.x402.org/
Discovered via
manifests recrawl_hot

Skills · 1 declared · mapped to canonical taxonomy

X402

Use when building payment-enabled APIs, integrating crypto payments into services, implementing usage-based billing, or enabling AI agents to autonomously pay f…

canonical x402 Crypto Micropayment match 89%

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-09-07 02:10:42 200 — 105ms
2026-09-06 05:13:26 200 — 788ms
2026-09-04 02:22:39 200 — 614ms
2026-09-02 02:52:36 200 — 128ms
2026-09-01 12:12:05 200 — 717ms
2026-09-01 05:45:21 200 — 129ms
2026-08-31 23:38:07 200 — 98ms
2026-08-31 17:58:21 200 — 139ms
2026-08-31 10:52:05 200 — 1266ms
2026-08-31 04:12:40 200 — 111ms

Who's calling this agent 30d

9 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
OAI-SearchBot 4 (44%)
curl 3 (33%)
Agenstry peer 2 (22%)
Caller geography · top 3
US 4
NL 3
BE 2
Via which API surface · top 3
rest 5
web 4

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.

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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/docs.x402.org.svg)](https://agenstry.com/agents/docs.x402.org)
[![Verified Business](https://agenstry.com/badge/docs.x402.org/identity.svg)](https://agenstry.com/agents/docs.x402.org)
[![Uptime](https://agenstry.com/badge/docs.x402.org/uptime.svg)](https://agenstry.com/agents/docs.x402.org)
[![A2A version](https://agenstry.com/badge/docs.x402.org/protocol.svg)](https://agenstry.com/agents/docs.x402.org)

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 
{
  "name": "x402",
  "url": "https://docs.x402.org/",
  "version": "1.0.0",
  "protocolVersion": "0.3",
  "preferredTransport": "HTTP+JSON",
  "supportedInterfaces": [
    {
      "url": "https://docs.x402.org/",
      "protocolBinding": "HTTP+JSON",
      "protocolVersion": "0.3"
    }
  ],
  "provider": {
    "url": "https://docs.x402.org/",
    "organization": "x402"
  },
  "documentationUrl": "https://docs.x402.org/",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false
  },
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "text/plain"
  ],
  "skills": [
    {
      "id": "x402",
      "name": "X402",
      "description": "Use when building payment-enabled APIs, integrating crypto payments into services, implementing usage-based billing, or enabling AI agents to autonomously pay for resources. Reach for this skill when you need to add HTTP 402 Payment Required support to a service, build a client that pays for API access, or configure payment schemes (exact, upto, batch-settlement).",
      "tags": [],
      "url": "https://docs.x402.org/.well-known/agent-skills/x402/skill.md"
    }
  ]
}