{"uid":"cap_VlmfdSFudg3sbwIj29Y3C","slug":"epss-exploit-prediction-score-lookup-f4e9538f","name":"EPSS Exploit-Prediction Score Lookup","description":"FIRST.org EPSS exploit-prediction score and percentile for CVE {q}. Query: ?q= Returns JSON.","url":"https://clonecho.builda.company/x402/s/epss-score","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_NNPyVZ9-MXvVeUzO918aX","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the FIRST.org EPSS exploit-prediction probability score and percentile for a given CVE identifier","exampleAgentPrompt":"What's the EPSS exploit-prediction score and percentile for CVE-2023-44487 — I want to know how likely it is to be exploited in the wild?","exampleUseCases":null,"resultDescription":"A JSON object containing the EPSS probability score (a value between 0 and 1 representing the likelihood of exploitation within 30 days) and the percentile rank (showing how this CVE compares to all scored vulnerabilities) for the queried CVE, sourced from FIRST.org.","failureModes":["CVE ID not found or not yet scored by EPSS — returns empty or error JSON","Invalid CVE format provided — may return an error or empty result","Payment failure — 402 response if USDC payment is not provided","Rate limiting or network timeout if upstream FIRST.org API is unreachable"],"whenToPreferThis":"Use this endpoint when you need to quickly assess the real-world exploit likelihood of a specific CVE using FIRST.org's EPSS model, especially for prioritizing vulnerability remediation. Prefer this over CVSS-only scoring when you want a probability-based exploit prediction rather than a severity rating, and when you need a percentile comparison against all known CVEs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:58:17.689Z","isFirstParty":false}