{"uid":"cap_vWkBu0HCQaNnXBbLQ56Hh","slug":"cve-vulnerability-lookup-api-f3876369","name":"CVE Vulnerability Lookup API","description":"CVE vulnerability lookup. Returns security vulnerability records by CVE id or keyword from the NIST National Vulnerability Database and GitHub Security Advisories, each with CVSS score, severity, CWE weakness class, affected products, and references, filterable by severity and source. For vulnerability triage and dependency risk checks. Keyless.","url":"https://api.kadec0.xyz/v1/cve","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","anyOf":[{"required":["cve_id"]},{"required":["keyword"]}],"required":[],"properties":{"cve_id":{"type":"string","description":"exact CVE id, e.g. CVE-2021-44228"},"source":{"enum":["nvd","github","all"],"type":"string","default":"all"},"keyword":{"type":"string","description":"free-text search"},"maxItems":{"type":"string","default":"20"},"severity":{"enum":["low","medium","high","critical"],"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Rc2krqMObASevPtKOsynZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up CVE security vulnerabilities from NIST NVD and GitHub Security Advisories, returning CVSS scores, severity, CWEs, and references.","exampleAgentPrompt":"Can you look up CVE-2021-44228 (Log4Shell) and give me its CVSS score, severity, and CWEs from both NVD and GitHub advisories?","exampleUseCases":null,"resultDescription":"Returns a list of CVE records (up to maxItems) each containing the CVE ID, description, CVSS score, severity level, CWE identifiers, affected products, and reference URLs sourced from NIST NVD and/or GitHub Security Advisories.","failureModes":["CVE ID not found in either NVD or GitHub — returns empty result set","Invalid CVE ID format — returns validation error","Keyword too broad returns truncated results at maxItems limit","Source parameter mismatch if advisory only exists in one source","Rate limiting or upstream NVD/GitHub API unavailability causes 503 or timeout"],"whenToPreferThis":"Use this endpoint when you need structured vulnerability data including CVSS scores, severity classifications, and CWE references for a known CVE ID or a keyword-based search. Prefer this over generic web search when you need machine-readable, authoritative vulnerability metadata from NIST NVD and GitHub Security Advisories in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:46:38.389Z","isFirstParty":false}