{"uid":"cap_vKFhag6FTzJceLgyQzCfd","slug":"halowerk-stack-detector-0308a5ff","name":"Halowerk Stack Detector","description":"One HTTP request per host, matched against an in-house signature set. Every hit carries a confidence value from 0 to 100 and the evidence it rests on: response header, asset path, cookie name, meta generator, DNS or ASN record. Results are cached for 24 hours per host, so a repeat lookup of the same domain answers from cache.","url":"https://stack.halowerk.com/stack","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","format":"uri","description":"Absolute http or https URL. Only the host matters for the cache; a path is followed but never probed separately."},"render":{"type":"boolean","default":false,"description":"Render the page in a headless browser before matching. Off by default: plain delivery is faster, cheaper on the origin and enough for almost every site. Turn it on for pages that build their markup entirely in JavaScript."},"refresh":{"type":"boolean","default":false,"description":"Bypass the 24 hour cache and fetch the origin again. Same price."}}},"responseSchema":null,"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_2G8qiEqv-y0cDt7HbSLEI","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":"Detects the technology stack of a given hostname using signature matching against headers, cookies, asset paths, meta tags, and DNS/ASN records, returning confidence-scored hits with supporting evidence.","exampleAgentPrompt":"Can you detect what technology stack shopify.com is running on and show me the confidence scores and evidence for each hit?","exampleUseCases":[{"title":"Competitor tech stack research","prompt":"I want to know what CMS, analytics tools, and hosting provider my competitor stripe.com is using — can you fingerprint their tech stack and show me the evidence behind each detection?"},{"title":"Security audit pre-assessment","prompt":"Before we do a security audit, can you identify the technologies running on target-company.com so we know what signatures to focus on? I need confidence scores and what evidence was used to detect each one."},{"title":"E-commerce platform identification","prompt":"Can you check what e-commerce platform and payment tools bestbuy.com is built on? I want to know the detected technologies with how confident you are for each one."}],"resultDescription":"Returns a list of detected technology hits for the queried hostname, each with a confidence value from 0 to 100 and the evidence type that produced the hit (e.g. response header, asset path, cookie name, meta generator tag, DNS record, or ASN record). Results may be served from a 24-hour cache if the same host was queried recently.","failureModes":["Unknown or unresolvable hostname returns no hits or an error","Heavily obfuscated sites with no detectable signatures return empty or low-confidence results","Results may be stale up to 24 hours due to caching","Private or localhost domains are unlikely to yield useful results","High-confidence detections may be absent if the site strips identifying headers"],"whenToPreferThis":"Choose this endpoint when you need fast, single-request technology fingerprinting of a public hostname with structured, confidence-scored evidence. It is ideal for competitive research, pre-engagement security recon, or enriching domain records with stack information. The 24-hour cache makes it efficient for repeated lookups. Prefer alternatives if you need full recursive crawling or real-time uncached detection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:38:32.653Z","isFirstParty":false}