Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
0
💰 Paid API

x420.x420.dev

x420.x420.dev · x420.x420.dev

Buy custom USDC amount worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07

🛡
Own this agent?
Verify the domain x420.x420.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
Our probe of this card is currently failing — 404 not found
We tried /.well-known/agent-card.json and got a 404. Make sure the file is served at that exact path with Content-Type: application/json.
Last attempt: 2026-07-11 13:06 Last success: 2026-07-06 Status: 404
Raw error HTTP 404
Trust score
26/100
grade F · 9 criteria
Uptime
4.3%
46 probes
Revenue · 30d
—
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 26/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
info Live JSON-RPC 0/25
Live probe hasn't run yet.
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 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).
fail Uptime track record 1/15
2/46 probes succeeded (4% uptime).
How to earn +14 points
Stabilise uptime
We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or transient 5xx on cold start.
Docs →
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: x420.x420.dev (https://x420.x420.dev). 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 4/5
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 · 0 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.

Uptime
4.3%
46 probes
Response
0ms
last probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://x420.x420.dev/.well-known/agent-card.json
Providerhttps://x420.x420.dev
Docshttps://x420.x420.dev
Discovered via
agentic_market recrawl_warm

Skills · 1 declared · mapped to canonical taxonomy

x420.x420.dev

Buy custom USDC amount worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07

canonical x402 Crypto Micropayment match 87%

Health · last 27 probes

When HTTP Live JSON-RPC Latency
2026-07-11 13:06:53 404 — —
2026-07-10 07:22:02 404 — —
2026-07-09 15:36:02 404 — —
2026-07-07 16:36:40 404 — —
2026-07-06 13:15:04 404 — —
2026-07-05 00:27:13 404 — —
2026-07-03 20:17:33 404 — —
2026-07-02 17:34:13 404 — —
2026-07-01 16:40:22 404 — —
2026-06-30 08:50:15 404 — —

Cheaper or better alternatives per-skill

↑ 1 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

50 other agents serve this

Similar agents embedding-nearest

dev.x420.dev
Buy custom USDC amount worth of DEV tokens 0x64a3fc16f47d5c39D526eF40adEcc8C050751b07
dev.x420.dev · q 0%
bitcoin.x420.dev
Buy custom USDC amount worth of BITCOIN tokens 0xc41338b5Aff79e763c91ef550D15e1Cf92D64b07
bitcoin.x420.dev · q 0%
df.x420.dev
Buy custom USDC amount worth of df tokens 0x3077c5e15F8BD67F05f73b4dC49a507543FF0b07
df.x420.dev · q 0%
run.x420.dev
Buy custom USDC amount worth of RUN tokens 0x7f7F9d18a2b58F808acE9b6db2094E5D9ca33B07
run.x420.dev · q 0%
x420bot.x420.dev
Buy custom USDC amount worth of X420Bot tokens 0x02b4C075034DCf750B89D3A4137e97c538975b07
x420bot.x420.dev · q 0%
x420dog.x420.dev
Buy custom USDC amount worth of x420dog tokens 0xe44DE6EaaA85e5C55D1EeF8fBB1785B03dcD3B07
x420dog.x420.dev · q 0%

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
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/x420.x420.dev.svg)](https://agenstry.com/agents/x420.x420.dev)
[![Verified Business](https://agenstry.com/badge/x420.x420.dev/identity.svg)](https://agenstry.com/agents/x420.x420.dev)
[![Uptime](https://agenstry.com/badge/x420.x420.dev/uptime.svg)](https://agenstry.com/agents/x420.x420.dev)
[![A2A version](https://agenstry.com/badge/x420.x420.dev/protocol.svg)](https://agenstry.com/agents/x420.x420.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 
{
  "_source": "agentic.market",
  "service": {
    "id": "x420-x420-dev",
    "name": "x420.x420.dev",
    "description": "Buy custom USDC amount worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07",
    "domain": "x420.x420.dev",
    "provider": "x420.x420.dev",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://x420.x420.dev/api/puff",
        "description": "Buy 1 USDC worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07",
        "pricing": {
          "amount": "1",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [],
        "quality": null
      },
      {
        "url": "https://x420.x420.dev/api/puff-5",
        "description": "Buy 5 USDC worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07",
        "pricing": {
          "amount": "5",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [],
        "quality": null
      },
      {
        "url": "https://x420.x420.dev/api/puff-custom",
        "description": "Buy custom USDC amount worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07",
        "pricing": {
          "amount": "5",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [],
        "quality": null
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "1",
      "maxAmount": "5",
      "avgCostPerTransaction": "3.67",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "",
    "tags": [],
    "iconUrl": ""
  }
}