{"uid":"cap_QuDp_5P2JzI4izYcF3tAi","slug":"agentshelf-syntexa-ch-og-image-alt-extractor-d54e6d42","name":"agentshelf.syntexa.ch OG Image Alt Extractor","description":"Call when an agent needs og:image:alt extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-og-image-alt first.","url":"https://agentshelf.syntexa.ch/v1/profile-og-image-alt?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","maxLength":2048,"minLength":8,"description":"Public page to fetch. The selector or profile is fixed by the SKU. Provide url or html."},"html":{"type":"string","examples":["<!doctype html><html lang=\"en\"><head><title>Hello</title>\n<meta name=\"description\" content=\"Desc\"><meta property=\"og:title\" content=\"OG\">\n<link rel=\"canonical\" href=\"https://example.com/\"><link rel=\"icon\" href=\"/favicon.ico\">\n</head><body><h1>Hello</h1><a href=\"https://example.com/a\">A</a></body></html>"],"maxLength":200000,"minLength":1,"description":"HTML to extract from locally. Provide html or url. When both are set, html is used."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Pg-3v4aaT2o-gUAgOgo9F","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts the og:image:alt meta tag value from a public web page URL or raw HTML, SSRF-safe, for $0.005 USDC per call.","exampleAgentPrompt":"Can you pull the og:image:alt text from https://example.com/product-page for me?","exampleUseCases":[{"title":"SEO audit of product pages","prompt":"Grab the og:image:alt value from https://shop.mybrand.com/products/sneaker-x so I can check if it's properly set for social sharing."},{"title":"Accessibility metadata check","prompt":"I have the raw HTML for our landing page — can you extract the og:image:alt text from it to verify we have proper alt text for the Open Graph image?"},{"title":"Competitive research on social tags","prompt":"What is the og:image:alt tag on https://competitor.com/home? I want to see how they label their social preview image."}],"resultDescription":"Returns the extracted og:image:alt string value from the Open Graph meta tag found in the provided URL or HTML content. If the tag is absent or could not be parsed, returns a null or empty result.","failureModes":["URL is unreachable or returns non-200 status — extraction fails","Page has no og:image:alt meta tag — returns empty or null value","HTML input exceeds 200,000 character limit — request rejected","URL is flagged as SSRF-unsafe (private IP, localhost) — blocked by SSRF protection","Malformed HTML may cause parser to miss the tag — partial or null result","Payment of $0.005 USDC not provided — 402 Payment Required response"],"whenToPreferThis":"Use this endpoint when you need only the og:image:alt tag from a page and want SSRF-safe URL fetching built in. Prefer the unpaid POST /v1/sandbox/profile-og-image-alt for testing; switch to this paid endpoint for production use. Choose this over general-purpose scrapers when you need a lightweight, single-field Open Graph extractor without the overhead of full page parsing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:46:29.306Z","isFirstParty":false,"canonicalSlug":"agentshelf-syntexa-ch-og-image-alt-extractor-d54e6d42"}