{"uid":"cap_OB7zVB-G7rrOBQJszqDUq","slug":"tech-detect-technology-stack-detection-via-x402-919bf44c","name":"Tech Detect – Technology Stack Detection via x402","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/google-fonts?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_poAl-gevoi3fJuqIjpg3B","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 given domain/URL and returns the detected technology stack with confidence scores and evidence, billed per-call in USDC via x402.","exampleAgentPrompt":"Can you scan stripe.com and tell me what technology stack they're running — frameworks, CDN, analytics, all of it — with confidence scores for each detection?","exampleUseCases":[{"title":"Competitive tech stack research","prompt":"I want to know what CMS, JavaScript framework, and analytics tools shopify.com is using — can you detect their full tech stack and give me confidence levels for each?"},{"title":"Sales lead enrichment with tech data","prompt":"Before my call with a prospect at acmecorp.com, can you quickly detect what ecommerce platform and marketing tools they're running on their site?"},{"title":"Monitoring a site for technology changes","prompt":"Last week I saw that example.com was using Cloudflare and Next.js — can you re-scan it now and flag anything that's changed compared to those previously observed technologies?"}],"resultDescription":"Returns a structured list of detected technologies for the given URL, each entry including the technology name, category (e.g. CMS, CDN, JavaScript framework, analytics), detected version if available, a confidence score, and supporting evidence for the detection. The response covers the full observable technology stack of the target domain.","failureModes":["Invalid or unreachable URL returns an error with no tech detections","Payment failure via x402 results in 402 response with no data returned","Domain with heavy bot protection may yield incomplete or low-confidence results","Malformed URL input (exceeding 2048 chars) rejected with validation error","Private/intranet domains not publicly accessible return empty or error results"],"whenToPreferThis":"Choose this endpoint when you need per-call, no-signup technology detection with cryptographic micropayment billing (x402/USDC). Ideal for agents that need to detect tech stacks on-demand without maintaining API keys or subscriptions. Particularly strong when you want confidence-scored, evidence-backed detections and optionally want to diff against a previously observed stack. Prefer over scraping-based DIY approaches or subscription tools when call volume is low or unpredictable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:39:47.791Z","isFirstParty":false,"canonicalSlug":"tech-detect-technology-stack-detection-via-x402-919bf44c"}