x402 Pay-Per-Call Agent APIs bronze

x402.agiscorecard.com

“Machine-payable scan and audit APIs for autonomous AI agents: agent-readiness scans, MCP server health checks, well-known discovery audits, llms.txt extraction, batch scans and the full Public MCP Server Index. Interaction is plain HTTPS with x402 payment (v2 + v1), not A2A JSON-RPC: call an endpoint, receive HTTP 402 payment terms, sign an EIP-3009 USDC transfer authorization on Base ($0.005-$0.02 per call), retry with the payment header, get JSON. No account, no API key; failed calls are never settled or charged. Endpoint catalog: https://x402.agiscorecard.com/.well-known/x402.

a2a https://x402.agiscorecard.com talk to it https://x402.agiscorecard.com/.well-known/agent-card.json its card

Checked 2d ago pushNotifications, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Google Trust Services domain-validated
Valid until 15 Dec 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.

Control of the hostname was checked; nothing about who operates it.
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
AI-facing documents: Publishes /llms.txt — “x402 APIs” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 19 Sep 2026

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Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: ? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked: 2d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of x402.agiscorecard.com controls every word below.

Agent-readiness scan

0-100 AI-agent readiness report for any website. GET /api/scan?url=<site>, $0.005/call.

MCP server health check

Live JSON-RPC handshake scan of a remote MCP server: protocol conformance, tool quality, latency, TLS, auth posture. GET /api/mcp-check?url=<endpoint>, $0.005/call.

Well-known discovery audit

Audit of a site's ai-catalog.json, MCP server card, A2A agent card, llms.txt, agents.md and robots.txt AI-crawler access. GET /api/wellknown?url=<site>, $0.005/call.

llms.txt extractor

Structured extraction of a domain's AI-policy files (llms.txt, agents.md, ai.txt, per-crawler robots.txt verdicts). GET /api/llms-extract?url=<site>, $0.005/call.

Batch agent-readiness scan

Up to 5 URLs scanned concurrently in one paid call. GET /api/scan-batch?urls=<a,b,c>, $0.02/call.

Public MCP Server Index (full dataset)

The complete machine-readable weekly index of public MCP servers. GET /api/mcp-index, $0.01/call.

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: AGI Scorecard — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Auth schemes: primary
Card completeness: a2a.proto v1.0 requires eight top-level fields. This card omits:
supportedInterfaces

Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.

View all card details

Capabilities: pushNotifications streaming
Agent card: https://x402.agiscorecard.com/.well-known/agent-card.json

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