{"uid":"cap_OVZnDEtCDxupQ0wocwstV","slug":"tech-detect-website-technology-stack-fingerprinting-fa431f81","name":"Tech Detect — Website Technology Stack Fingerprinting","description":"Domain in, technology stack out. Confidence and evidence for every hit. Pay per call in USDC over x402. No signup, no API key.","url":"https://stack.halowerk.com/stack/articles/openresty?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","maxLength":2048},"previous":{"type":"object","required":["observed_at","technologies"],"properties":{"observed_at":{"type":"string","maxLength":40},"technologies":{"type":"array","items":{"type":"object","required":["name","category","version"],"properties":{"name":{"type":"string","maxLength":150},"version":{"type":["string","null"],"maxLength":80},"category":{"type":"string","maxLength":80}},"additionalProperties":false},"maxItems":150}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_yrE-LrwOzJ3Yf12BFe8ch","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes a domain URL and returns the full technology stack with confidence scores and evidence, paid per-call in USDC via x402.","exampleAgentPrompt":"Can you detect what technology stack stack.halowerk.com is running — I want to know the web server, frameworks, CDN, and any analytics tools, with confidence scores for each hit?","exampleUseCases":[{"title":"Competitor tech stack audit","prompt":"I want to know exactly what technologies my competitor shopify.com is using — CMS, hosting, frontend frameworks, analytics, everything — with confidence and evidence for each one."},{"title":"Sales lead tech qualification","prompt":"Before we reach out to stripe.com as a sales prospect, can you detect their full technology stack so I know what tools they're already using and whether our product would fit?"},{"title":"Incremental stack change monitoring","prompt":"I scanned github.com last week and found they were using Nginx and React — can you re-scan them now and tell me if anything has changed in their tech stack since then? Here's the previous snapshot: observed_at 2024-06-01T00:00:00Z, technologies: [{name: Nginx, category: web-server, version: null}, {name: React, category: javascript-framework, version: null}]."}],"resultDescription":"Returns a list of detected technologies, each with a name, category (e.g. web-server, CDN, CMS, analytics), version (if detectable), confidence score, and supporting evidence. The response covers the full observable stack for the submitted domain URL.","failureModes":["Unresolvable or unreachable domain returns no technologies or an error","Private/intranet domains not accessible from the scanner return empty results","Rate limiting or payment failure via x402 causes a 402 Payment Required response","Obfuscated or heavily proxied sites may yield low-confidence or incomplete results","Malformed URL input triggers a validation error"],"whenToPreferThis":"Choose this endpoint when you need per-call, no-signup technology fingerprinting with confidence and evidence metadata, especially in agent workflows where pay-as-you-go USDC billing via x402 is preferred over subscription API keys. Ideal for competitive intelligence, sales enrichment, or monitoring pipelines that need structured stack data rather than raw HTML scraping.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T11:30:08.672Z","isFirstParty":false,"canonicalSlug":"tech-detect-website-technology-stack-fingerprinting-fa431f81"}