What Is a Vulnerability Intelligence API?
A vulnerability intelligence API is a programmatic endpoint that returns enriched, prioritized CVE data: not just the raw record, but exploitation status, likelihood, affected versions, and exploit availability, so software (or an AI agent) can decide what to fix first. It is the difference between "here is CVE-2024-XXXX" and "this is being exploited now, here is the affected version and the fix."
What separates it from a raw CVE feed
A raw feed (for example NVD's JSON) gives you the base record and CVSS. A vulnerability intelligence API does the joining and ranking for you: it fuses the exploitation signals, resolves affected versions, attaches exploit availability, and returns an answer ordered by what matters. You stop maintaining five feeds, their rate limits, and their schema drift, and get one call.
What to look for in a vulnerability intelligence API
- Fused sources (NVD + KEV + EPSS + OSV + SSVC), not one feed.
- Exploitation-first output (KEV / EPSS / SSVC), not just CVSS. Severity is not likelihood: see what actually predicts exploitation.
- A hallucination check for AI-agent use, so a confidently wrong CVE claim is refuted rather than passed through.
- MCP-native access if you drive it from an agent, so it is a tool call, not a scraping pipeline.
For a feature-by-feature look at real services against these criteria, see the vulnerability intelligence API comparison.
vulntel
vulntel is MCP-native and fuses all of the above, built for AI agents that need grounded, cited answers. It ranks exploitation-first, enriches a CVE with KEV, EPSS and SSVC in one call, and fact-checks a CVE claim before an agent acts on it.
FAQ
What is a vulnerability intelligence API? A programmatic endpoint that returns enriched, prioritized CVE data (exploitation status, probability, affected versions, exploit availability), so software or an agent can decide what to fix first, instead of parsing raw feeds itself.
How is it different from the NVD API? NVD gives you the base CVE record and CVSS. A vulnerability intelligence API fuses NVD with KEV, EPSS, OSV/GHSA and SSVC and returns a ranked, exploitation-first answer, doing the joining and prioritization for you.
Is there a vulnerability intelligence API for AI agents? Yes. vulntel is an MCP-native vulnerability intelligence server, so an AI agent calls a tool and gets fused, cited data, with a fact-check for CVEs it might hallucinate.
What sources should a vulnerability intelligence API use? At minimum NVD (base record and CVSS), CISA KEV (known-exploited), FIRST EPSS (exploitation probability), OSV/GHSA (ecosystem advisories) and CISA SSVC (decision points), ideally with a public exploit signal.