{"uid":"cap_6-Y0KFPU5vPiPKF-_tBtc","slug":"agentshelf-tech-hints-response-header-html-stack-fingerprinting-b11eaa96","name":"AgentShelf Tech Hints – Response Header & HTML Stack Fingerprinting","description":"Call when an agent needs lightweight stack hints from response headers + HTML (generator, x-powered-by, fingerprints, analytics booleans). No browser. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/tech-hints first.","url":"https://agentshelf.syntexa.ch/v1/tech-hints?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","examples":["https://example.com/"],"maxLength":2048,"minLength":8,"description":"Public http(s) URL to fetch. Private, localhost, link-local, and metadata hosts are rejected."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ZyBaJrrUsx0zaEZVw1KX8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches lightweight technology stack hints for a given URL by inspecting HTTP response headers and HTML meta signals (generator tags, x-powered-by, analytics booleans, fingerprints) without running a browser.","exampleAgentPrompt":"Can you check what tech stack https://example.com is built on — things like the CMS, server framework, and whether it has any analytics tools — just from its headers and HTML, no browser needed?","exampleUseCases":[{"title":"Competitor tech stack discovery","prompt":"What technology is powering https://competitor-brand.com? I want to know the CMS, any frameworks showing in the headers or generator tag, and whether they're running analytics like GA."},{"title":"Sales lead enrichment for SaaS tool","prompt":"Before I reach out to this prospect, can you tell me what platform https://prospectco.io is built on based on its response headers and HTML signals?"},{"title":"Security audit pre-check","prompt":"I'm doing a quick recon on https://targetsite.net — can you pull the tech fingerprints from its headers and HTML, like x-powered-by and any framework clues, without spinning up a browser?"}],"resultDescription":"Returns lightweight technology stack hints derived from HTTP response headers and HTML meta elements, including detected generator tags, x-powered-by values, framework fingerprints, and boolean flags for detected analytics tools — all without requiring a headless browser.","failureModes":["URL unreachable or returns non-200 status — endpoint may return error or empty hints","URL blocks automated HTTP clients (no user-agent spoofing) — limited or missing headers","Site uses heavy client-side rendering — HTML hints may be sparse since no browser is used","Malformed or too-short URL input (below 8 chars) — schema validation error","Payment failure or insufficient USDC balance — 402 response blocking execution"],"whenToPreferThis":"Prefer this endpoint when you need fast, cheap technology stack detection for a URL without spinning up a headless browser — ideal for bulk lead enrichment, competitive research, or pre-audit recon where full JS rendering is unnecessary. At $0.008 USDC it is cost-effective for moderate volumes. Try the free POST /v1/sandbox/tech-hints first if available before paying.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:27:20.859Z","isFirstParty":false,"canonicalSlug":"agentshelf-tech-hints-response-header-html-stack-fingerprinting-b11eaa96"}