{"uid":"cap_6EInP7tBq-zqMdG8S2qbK","slug":"agentshelf-syntexa-ch-citation-doi-extractor-b713e0ef","name":"agentshelf.syntexa.ch Citation DOI Extractor","description":"Call when an agent needs citation_doi extracted from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/profile-citation-doi first.","url":"https://agentshelf.syntexa.ch/v1/profile-citation-doi?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":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-OOsTjNKcdueVdacYzIkU","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts a citation DOI from a public web page or raw HTML content, with SSRF protection.","exampleAgentPrompt":"Can you extract the DOI from this journal article page? The URL is https://www.nature.com/articles/s41586-023-06555-x","exampleUseCases":[{"title":"DOI extraction from journal page","prompt":"I have the URL for a Nature paper — https://www.nature.com/articles/s41586-023-06555-x — can you pull out the DOI so I can add it to my reference list?"},{"title":"DOI from pasted article HTML","prompt":"I copied the HTML from a PubMed article page. Can you scan through it and find the citation DOI for me?"},{"title":"Bibliographic data enrichment pipeline","prompt":"For each of these paper URLs I'm processing, I need the DOI extracted so I can look up full metadata — start with https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0123456"}],"resultDescription":"Returns the extracted citation DOI (digital object identifier) found within the provided URL's page content or the supplied raw HTML, typically as a string value like '10.xxxx/yyyyy'.","failureModes":["No DOI found on the page or in the HTML — returns empty or null result","URL points to a private/internal IP (SSRF blocked) — request rejected","URL is unreachable or returns non-200 status — fetch failure","HTML exceeds 200,000 character limit — input too large","Malformed or missing input (neither url nor html provided) — validation error","DOI embedded in non-standard formats may not be detected"],"whenToPreferThis":"Use this endpoint when you need to reliably extract a DOI from an academic or scientific web page by URL or raw HTML, especially in an automated pipeline where SSRF safety is required. Prefer this over general-purpose scrapers when the target entity is specifically a citation DOI. Use the free sandbox endpoint (/v1/sandbox/profile-citation-doi) first to validate before paying $0.01 USDC per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:11.113Z","isFirstParty":false,"canonicalSlug":"agentshelf-syntexa-ch-citation-doi-extractor-b713e0ef"}