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SiteCheck Web Intel CVE NVD Lookup
x402
SiteCheck Web Intel CVE NVD Lookup is a paid API for AI agents from api.webintel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-25).
Fetches a single CVE record from the NIST National Vulnerability Database, including description, CVSS score/severity, CWE IDs, and reference URLs
Price / call$0.002
Success—
StatusUnknown
How this service works
One CVE record from the NIST National Vulnerability Database: description, published and last-modified dates, NVD status, primary CVSS score and severity (v4.0, 3.1, 3.0 or 2.0, whichever NVD marks primary first), CWE weakness IDs and up to 5 reference URLs. It does not say whether the CVE is being exploited (use cisa-known-exploits or epss-exploit-score for that).
Output
Returns a structured record for the requested CVE including: plain-language description, published and last-modified timestamps, NVD processing status, primary CVSS score and severity (from v4.0, 3.1, 3.0, or 2.0 — whichever NVD marks primary), associated CWE weakness IDs, and up to 5 reference URLs. Does not include exploitation status or EPSS scores.
Example use cases
Security patch prioritization triage
“We just got an alert about CVE-2023-44487 — can you look it up in the NVD and tell me the CVSS score, severity level, and what CWE weakness it maps to so I can decide how urgent the patch is?”
Vulnerability report enrichment
“I'm writing a security report and need the full NVD record for CVE-2022-22965 — give me the description, published and last-modified dates, CVSS score, and any reference URLs from the database.”
Dev dependency vulnerability check
“One of our open-source dependencies flagged CVE-2024-3094 — look it up in the National Vulnerability Database and tell me its severity, CVSS score, and what weaknesses it's classified under.”
Technical details
Endpoint
GEThttps://api.webintel-api.workers.dev/api/security/cve-nvd-lookup?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured NVD data for a specific CVE — description, CVSS score, severity, CWE IDs, and reference links — without needing exploitation status. For exploitation likelihood, pair with EPSS or CISA Known Exploits endpoints. Prefer this over scraping NVD directly since it's a pay-per-call API that handles NVD querying and normalization for you.
Side effects
- CVE ID not found in NVD — returns error or empty result
- Malformed CVE ID format (e.g. missing 'CVE-' prefix) — returns validation error
- NVD upstream API unavailable — may return timeout or 503
- CVE exists but has no CVSS score yet (newly published) — score fields may be null
- Rate limiting or payment failure via x402 protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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