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Agent Card Discovery Audit
x402
Agent Card Discovery Audit is a paid API for AI agents from agentreadiness.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-16).
Passively fetches public evidence from a target URL and audits it for agent card discoverability, returning observations, verdicts, evidence sources, and recommended actions.
Price / call$0.001
Success—
StatusUnknown
How this service works
Agent card discovery audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.
Output
Returns a structured audit result including the observation (what was found), the threshold being evaluated, the verdict (pass/fail), the exact evidence source URL, known limitations of the passive check, and a mode-specific action the site owner should take. Context labels passed in are returned unchanged.
Example use cases
Pre-launch agent card check
“Before I go live, can you check if https://staging.mybrand.com has a properly configured agent card that AI agents can discover — and tell me the verdict with any action items?”
Diagnosing agent discovery failure
“My service at https://api.acmecorp.com isn't being picked up by AI agents — can you audit its agent card and tell me what evidence is missing and why it's failing?”
Monitoring agent card regressions
“I want to compare the current agent card state of https://platform.startupxyz.io against the baseline snapshot I got last week — can you run the audit and flag any changes or regressions?”
Technical details
Endpoint
POSThttps://agentreadiness.halowerk.com/v1/agent-card-audit?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a passive, non-invasive audit of whether a public URL or domain exposes a correctly formatted and discoverable agent card. It is the right choice when you want a structured verdict with evidence provenance rather than a generic HTTP probe. Prefer it over manual inspection or generic crawlers when you need the specific agent card criterion evaluated with a documented threshold and actionable repair guidance.
Side effects
- Target URL is unreachable or returns non-200 status — audit cannot fetch evidence
- Domain normalization fails for malformed or private URLs
- Baseline comparison returns diff errors if baseline schema is incompatible
- Rate limiting or network timeouts on the target side cause incomplete evidence collection
- Private or auth-gated agent cards cannot be evaluated since no login is attempted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| target | string | Public HTTP(S) URL or domain to inspect. A bare domain is normalized to HTTPS. |
| context | object | Optional non-secret correlation labels returned unchanged only in the request lifecycle. |
| baseline | — | Optional baseline returned by a previous snapshot call. |
| compare_url | string | Optional public comparison URL. Used by change and monitoring services. |
Tags
x402
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