{"uid":"cap__ZuRw-LawGWFTEpu5RLPg","slug":"shieldapi-password-breach-check-c667c27b","name":"ShieldAPI Password Breach Check","description":"Check password hash against 900M+ breach records","url":"https://shield.vainplex.dev/api/check-password","method":"GET","headers":{},"bodySchema":{"properties":{"input":{"required":["method"],"properties":{"method":{"enum":["GET"],"type":"string"}}}}},"responseSchema":null,"example":{"request":{"demo":true,"hash":"da39a3ee5e6b4b0d3255bfef95601890afd80709"},"response":{"mode":"demo","note":"This is demo data. The password \"password\" has been seen ~3.8M times in breaches.","count":3861493,"found":true,"prefix":"5BAA6"}},"exampleRequest":{"demo":true,"hash":"da39a3ee5e6b4b0d3255bfef95601890afd80709"},"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_F8VEoKCu1hibCU2sEh4Dm","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks a SHA-1 password hash against 900M+ breach records to determine if a password has been compromised","exampleAgentPrompt":"Can you check if the password I'm about to use has ever appeared in a data breach — its SHA-1 hash is 5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8?","exampleUseCases":[{"title":"Validate user passwords during registration","prompt":"I'm building a sign-up flow and want to warn users if their chosen password has shown up in known breaches — can you check if this SHA-1 hash is in your database: e5fa44f2b31c1fb553b6021e7aab6b74e5fa44f2?"},{"title":"Screen employee credentials for IT security","prompt":"Our IT team is doing a security audit and needs to verify that employee passwords haven't been compromised in past incidents. Can you tell me if this SHA-1 hash has been exposed: 7c4a8d09ca3762af61e59520943dc26494f8941b?"},{"title":"Detect compromised passwords in user accounts","prompt":"A user just changed their password to something new — I want to make sure they're not using a password that's already been leaked. Can you check this SHA-1 hash against your breach records: 2c26b46911185131006ba32006b47e39fc1db128?"}],"resultDescription":"Returns whether the SHA-1 hash of the password appears in the breach database of 900M+ records, typically including a breach count or exposure flag indicating how many times the password was found in known data breaches.","failureModes":["Invalid hash format (not 40 hex characters) — returns 400 bad request","Hash not found in database — returns clean/safe result","Network timeout or service unavailability — returns 5xx error","Payment not completed (x402) — returns 402 Payment Required","Demo mode limits results or truncates breach count"],"whenToPreferThis":"Use this endpoint when you need a full exact-match breach check against a complete SHA-1 hash and are willing to pay $0.001 USDC per call. Prefer the sibling k-Anonymity range lookup endpoint when you want to avoid sending the full hash for privacy reasons (HIBP-compatible partial hash model). Use this endpoint when you need a definitive, full-hash confirmation of breach exposure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:56:02.167Z","isFirstParty":false}