{"uid":"cap_9AmpQeotvH7Z5LqwLgnmE","slug":"nvd-cve-lookup-x402-endpoints-71b396d3","name":"NVD CVE Lookup (x402-endpoints)","description":"Security vulnerability lookup (CVE) against the official NVD (NIST) database — by exact CVE id or by keyword/product. Returns description, CVSS severity, CWE weaknesses and references. Worldwide.","url":"https://x402-endpoints.onrender.com/cve/lookup?utm_source=zero.xyz","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","required":[],"properties":{"limit":{"type":"integer","description":"Max results for keyword search [1-20], e.g. 10"},"cve_id":{"type":"string","description":"Exact CVE id, e.g. 'CVE-2021-44228'"},"keyword":{"type":"string","description":"Keyword / product search, e.g. 'log4j'"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"cves":[{"id":"CVE-2021-44228","cvss":{"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1","base_score":10,"base_severity":"CRITICAL"},"status":"Analyzed","published":"2021-12-10T10:15:09.143","references":["https://logging.apache.org/log4j/2.x/security.html"],"weaknesses":["CWE-502","CWE-917"],"description":"Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints...","last_modified":"2026-06-17T04:12:05.460"}],"count":1,"query":{"cve_id":"CVE-2021-44228","keyword":null},"cached":false,"source":"NVD — NIST National Vulnerability Database v2.0 (services.nvd.nist.gov)","timestamp":"2026-06-24T15:20:00Z","total_results":1}},"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_dtzz6Glknh4QS9EGkejg7","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 security vulnerabilities by exact CVE ID or keyword/product name against the official NIST National Vulnerability Database, returning severity, weaknesses, and references.","exampleAgentPrompt":"Can you look up CVE-2021-44228 in the NVD database and tell me the CVSS severity score, what CWE weaknesses it has, and any official references?","exampleUseCases":null,"resultDescription":"Returns structured vulnerability data from NVD including: the CVE description, CVSS severity score and vector, associated CWE weakness identifiers, and a list of official references. For keyword searches, returns up to the requested number of matching CVE records.","failureModes":["CVE ID not found in NVD — returns empty or 404-equivalent response","Invalid CVE ID format — may return error or no results","Keyword too broad returning no useful results — try more specific term","NVD upstream API unavailable — service may time out","Limit parameter out of range (must be 1-20) — validation error"],"whenToPreferThis":"Use this endpoint when you need authoritative, official vulnerability data from NIST NVD — the gold standard for CVE information. Prefer this over third-party vuln databases when you need CVSS scores, CWE classifications, and canonical references. Best for security audits, patch prioritization, compliance checks, or enriching security alerts with official severity data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T06:39:45.669Z","isFirstParty":false,"canonicalSlug":"nvd-cve-lookup-x402-endpoints-71b396d3"}