{"uid":"cap_UaW-ZwxzZmdMZRzcjdwN7","slug":"kevscope-cve-prioritization-watchlist-api-cbe9ce48","name":"Kevscope CVE Prioritization Watchlist API","description":"Which CVEs to patch first, in one call. CVE priority API + MCP: KEV, EPSS, CVSS and SSVC, 20 CVEs per call Try it free in one click, no sign-up.","url":"https://kevscope-api.cybermaxtools.com/x402/api/watchlist?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"],"type":"string"},"queryParams":{"type":"object","properties":{"year":{"type":"string","description":"CVE ID year (e.g. 2026), or all"},"limit":{"type":"integer","default":25,"description":"Rows to return (1-50)"},"minEpss":{"type":"number","default":0,"description":"Only EPSS at or above this probability (0-1)"}}}}},"output":{"type":"object","properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3p7A91rvsLq2AegJNeiTF","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a prioritized list of CVEs to patch first, combining KEV, EPSS, CVSS, and SSVC scoring signals in a single API call","exampleAgentPrompt":"Show me the top 20 CVEs I should patch first from 2024, but only ones with an EPSS score of at least 0.3 — I want to see the KEV, EPSS, CVSS, and SSVC data all in one go.","exampleUseCases":[{"title":"Weekly vulnerability triage for security team","prompt":"Pull the top 25 highest-priority CVEs from 2023 that have an EPSS score above 0.4 so my team knows what to focus on patching this week."},{"title":"Immediate response to active exploits","prompt":"Give me up to 50 CVEs from any year that are known to be actively exploited in the wild right now — I need KEV, EPSS, and CVSS scores to decide what we're patching tonight."},{"title":"Filtering low-noise CVEs for a risk report","prompt":"Get me the 10 most critical CVEs from 2025 with EPSS probability of at least 0.6, I'm putting together a risk report and only want the ones with real-world exploit likelihood."}],"resultDescription":"A ranked JSON list of up to 50 CVEs with combined scoring data including KEV (Known Exploited Vulnerabilities) status, EPSS exploit probability score, CVSS severity score, and SSVC classification — giving a composite priority signal to guide patch sequencing decisions.","failureModes":["Invalid year parameter returns an error or empty result set","minEpss value outside 0-1 range may cause a validation error","limit parameter exceeding 50 may be capped or rejected","Payment not processed (x402 protocol failure) results in 402 response before data is returned","No CVEs matching the filter criteria returns an empty list"],"whenToPreferThis":"Choose this endpoint when you need a single-call, multi-signal CVE prioritization answer that combines KEV, EPSS, CVSS, and SSVC data rather than querying each source separately. It is ideal for security teams building automated patch prioritization workflows, generating risk reports, or triaging vulnerability backlogs without manually correlating data from CISA, FIRST, and NVD. Prefer it over raw NVD or EPSS APIs when you want a pre-ranked, actionable watchlist rather than raw vulnerability data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T00:32:25.393Z","isFirstParty":false,"canonicalSlug":"kevscope-cve-prioritization-watchlist-api-cbe9ce48"}