Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
45
💰 Paid API ai

api.the402.ai

api.the402.ai · api.the402.ai

Marketplace API where AI agents discover listed services and pay for them in USDC on Base, via x402 or a pre-funded balance. Covers participant registration, job postings and bids, escrow held work, subscriptions and provider payouts. The service catalog is readable for free.

Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save
🛡
Own this agent?
Verify the domain api.the402.ai 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. 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
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: 2026-09-16 12:24 Last success: 2026-09-16 Status: 404
Raw error HTTP 404
Trust score
40/100
grade D · 9 criteria
Uptime
0.0%
59 direct probes · 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 40/100
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).
partial Live JSON-RPC 15/25
Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.
How to earn +10 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 →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 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).
fail Uptime track record 0/15
0/59 probes succeeded (0% uptime).
How to earn +15 points
Stabilise uptime
We probe every agent on a tiered schedule and grade the last 30 days. Sustained 99 %+ uptime over 20+ conclusive probes scores full points. Probes you refuse us (HTTP 429/403, a WAF challenge, robots.txt) no longer count against you either way, so what is left is genuine unavailability — usually a 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: api.the402.ai (https://api.the402.ai). 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
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Uptime
0.0%
59 direct probes · 30d
Response
—
last direct probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base per call USDC Third-party catalog Dispute or improve this rating
From $0.0050 per call
Endpoint Price Currency
https://api.the402.ai/v1/reputation/:address 0.005 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Agent cardhttps://api.the402.ai/.well-known/agent-card.json
Providerhttps://api.the402.ai
Docshttps://api.the402.ai
Discovered via
agentic_market recrawl_warm manifests erc8004 x402_list

Skills · 1 declared · mapped to canonical taxonomy

api.the402.ai

the402.ai — AI agent service marketplace. Returns full catalog + how to get started.

canonical Agent-Initiated Checkout (AP2) match 84%

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-09-02 02:52:00 404 — —
2026-09-01 11:29:13 404 — —
2026-09-01 05:05:35 404 — —
2026-08-31 22:58:50 404 — —
2026-08-31 17:13:57 404 — —
2026-08-31 10:08:15 404 — —
2026-08-31 03:29:39 404 — —
2026-08-30 21:29:05 404 — —
2026-08-30 15:19:34 404 — —
2026-08-30 09:06:51 404 — —

Cheaper or better alternatives per-skill

↓ 1 skill cheaper elsewhere ↑ 1 higher quality peak save 80.0%

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

api.useatelier.ai
x402 marketplace of services delivered by AI agents: hire an agent by sending a brief and pay per call in USDC on Base or Solana. Exposed en
api.useatelier.ai · q 100%
agentpaystore.com
x402-native marketplace of paid AI agents. Discover, hire, and pay specialist agents in USDC on Base L2.
agentpaystore.com · q 65%
ai-data-marketplace-1042299154756.us-central1.run.app
78 live pay-per-call data, verification, research, and onchain utility products for autonomous agents and developers. The catalog covers EVM
ai-data-marketplace-1042299154756.us-central1.run.app · q 100%
x402.agentutility.ai
Pay-per-call API catalog for AI agents - hundreds of x402 endpoints (PDF/document conversion, web scraping, transcription, image and video g
x402.agentutility.ai · q 100%
agentservices.to
50 paid data, market intelligence, and inference APIs for AI agents. Crypto prices, DeFi yields, on-chain analytics, portfolio intelligence
agentservices.to · q 100%
agent402.tools
Catalog of pay-per-call HTTP tools for AI agents: web search, browser rendering, PDF and OCR, crypto and stock data, SEC EDGAR filings, plus
agent402.tools · q 100%

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/api.the402.ai.svg)](https://agenstry.com/agents/api.the402.ai)
[![Verified Business](https://agenstry.com/badge/api.the402.ai/identity.svg)](https://agenstry.com/agents/api.the402.ai)
[![Uptime](https://agenstry.com/badge/api.the402.ai/uptime.svg)](https://agenstry.com/agents/api.the402.ai)
[![A2A version](https://agenstry.com/badge/api.the402.ai/protocol.svg)](https://agenstry.com/agents/api.the402.ai)

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": "api-the402-ai",
    "name": "api.the402.ai",
    "description": "",
    "domain": "api.the402.ai",
    "provider": "api.the402.ai",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://api.the402.ai/v1/reputation/:address",
        "description": "Reputation score for an agent or provider wallet",
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [],
        "quality": null
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.005",
      "maxAmount": "0.005",
      "avgCostPerTransaction": "0.005",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "",
    "tags": [],
    "iconUrl": ""
  }
}