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DevX API Health Audit (Quick Check)
x402
DevX API Health Audit (Quick Check) is a paid API for AI agents from apiaudit.madebydevx.com, paid per call via x402, $0.09/call, status unknown (last checked 2026-10-31).
Performs a 3-sample spot-check of a public API endpoint for $0.09 USDC, returning a grade (A–F), score, production-readiness verdict, latency stats, and the top 3 issues with concrete fixes.
Price / call$0.09
Success—
StatusUnknown
How this service works
Full API Health Audit: give one public API endpoint URL (optional method, headers, body) and get a production-readiness report: latency min/median/p95 over 10 samples, error rate and uptime estimate, JSON schema consistency, security headers, CORS, TLS and cert expiry from CT logs, verdict with fixes. $9 USDC on Base; unreachable targets not charged. Cheaper first look: POST /v1/quick ($0.09: grade + top 3 issues). By DevX.
Output
A JSON object containing: a verdict with letter grade (A–F), numeric score (0–100), production-ready boolean, and label; latency stats (median and p95 TTFB in ms); a list of up to 3 top issues each with a title, severity, and concrete fix recommendation; a reference to the full audit endpoint and its price; and payment metadata including transaction hash and operation ID.
Example use cases
Pre-launch API readiness check
“Before we go live tomorrow, can you run a quick audit on https://api.myservice.com/v1/users using GET and tell me if it's production-ready, what grade it gets, and what the top 3 things we need to fix?”
Security header gap diagnosis
“I think our API at https://backend.company.com/api/status is missing some security headers like HSTS and has a CORS issue — can you do a quick spot-check and show me exactly what to add to fix it?”
Third-party API vetting
“We're about to integrate with this external API at https://partner.example.com/v2/data — can you quickly audit it with a GET and tell me if it's reliable and safe to depend on in production?”
Technical details
Endpoint
POSThttps://apiaudit.madebydevx.com/v1/quick?utm_source=zero.xyzWhen to prefer
Choose this quick check when you need a fast, cheap ($0.09 USDC) spot-assessment of a single API endpoint before launch or integration — especially when you want an actionable letter grade and the top 3 concrete fixes without waiting for a comprehensive audit. Prefer the full /v1/audit endpoint ($9) when you need all findings, certificate expiry data, and 10-sample statistical confidence. This endpoint is ideal for automated pre-deployment gates, CI pipeline checks, or quickly vetting a third-party API.
Side effects
- Unreachable or non-public target URL: not charged, returns an error indicating the endpoint could not be probed
- Invalid URL format or unsupported scheme: returns a 400-level validation error
- Target returns unexpected content type or malformed responses that cannot be assessed consistently
- Rate limiting or firewall on the target blocks the audit probes, resulting in partial or failed samples
- Idempotency key reuse with different inputs may return the cached report or an error depending on implementation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public http(s) API endpoint to audit (only this URL is probed) |
| body | — | Optional probe body for POST (string or JSON, max 16 KB) |
| method | string | Probe method (default GET). POST is sent once per sample. |
| headers | object | Optional request headers (e.g. authorization) used only for the probe; never stored or echoed |
| requestKey | string | Optional idempotency key: same payer + requestKey + input within 7 days returns the stored report without a second charge. |
| expect_status | integer | Status code that counts as success (default: any status < 400) |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"tier": "quick",
"verdict": {
"grade": "C",
"label": "needs work before production",
"score": 70,
"production_ready": false
},
"latency_ms": {
"ttfb_p95": 12,
"ttfb_median": 5
},
"top_issues": [
{
"fix": "Add: Strict-Transport-Security: max-age=31536000; includeSubDomains",
"title": "No HSTS header",
"severity": "medium"
},
{
"fix": "Allow-list trusted origins; never reflect the Origin header when credentials are allowed.",
"title": "CORS reflects any Origin with credentials",
"severity": "medium"
},
{
"fix": "Redirect (301/308) or reject (403/426) plain HTTP; combine with HSTS.",
"title": "Plain HTTP is served, not redirected",
"severity": "medium"
}
],
"full_report": {
"url": "/v1/audit",
"price_usd": "9.00"
}
},
"status": "paid",
"payment": {
"status": "paid",
"network": "eip155:8453",
"tx_hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"amount_raw": "90000"
},
"operation_id": "5d0c7a3e-1f2b-4c6d-8e9f-0a1b2c3d4e5f"
}
}Tags
x402
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