{"uid":"cap_-GHA5DPTzIzi524UcgXsG","slug":"does-site-use-firebase-auth-2cf95b76","name":"does-site-use-firebase-auth","description":"Does a website use Firebase Auth? Fetches the page (homepage for a bare domain) and matches Firebase Auth's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (auth). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.","url":"https://site.intel.rallylive.ca/site/uses/firebase-auth?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":{}}},"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_WbQ95o_8b7qlAiny5lxzP","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":"Detects whether a website uses Firebase Auth by fingerprinting its homepage HTML and response headers, returning yes/no with evidence snippets.","exampleAgentPrompt":"Can you check if stripe.com uses Firebase Auth for its authentication? I want to know if they're relying on Google Firebase.","exampleUseCases":[{"title":"Competitor auth stack research","prompt":"Check whether notion.so uses Firebase Auth — I'm researching what authentication providers our main competitors are using."},{"title":"Sales lead qualification","prompt":"I have a list of SaaS prospects and I want to know which ones use Firebase Auth — can you start by checking linear.app?"},{"title":"Migration planning audit","prompt":"We're planning to migrate away from Firebase Auth and need to confirm that our staging site at staging.myapp.com still shows Firebase Auth fingerprints before we cut over."}],"resultDescription":"Returns a yes/no boolean indicating whether Firebase Auth was detected on the site, along with the matching evidence snippet (HTML or header fragment that triggered the match) and the technology category label ('auth').","failureModes":["Site is unreachable or returns non-200 response — detection cannot be performed","Site uses client-side rendering and fingerprints only appear after JS execution — may return false negative","Domain is paywalled or bot-protected, blocking the fetch","Firebase Auth fingerprints are obfuscated or minified in a way that evades pattern matching","Invalid or malformed domain input returns an error"],"whenToPreferThis":"Choose this endpoint when you need a fast, low-cost ($0.01) single-domain check for Firebase Auth specifically. Ideal for technographic enrichment pipelines, sales prospecting qualification, or competitive research where you want a definitive yes/no with evidence rather than a full tech-stack scan. Use the bulk sibling endpoints if checking more than one domain at a time.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T17:01:56.634Z","isFirstParty":false,"canonicalSlug":"does-site-use-firebase-auth-2cf95b76"}