{"uid":"cap_yztZnVMskIGo0OTwi_C_q","slug":"delx-citation-extract-09f91314","name":"Delx Citation Extract","description":"Harvest URL and DOI citation patterns from text without network access — call when harvesting URL/DOI citation patterns without network. Use on text/URLs the agent already holds—adjacent to high-volume extract demand, never advertised as general web or X search. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, and no claim of live chain tip, web search, or med…","url":"https://api.delx.ai/api/v1/x402/citation-extract","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","description":"UTF-8 text to encode, chunk, index, or analyze (caller-supplied only)."}}},"responseSchema":{"type":"json","example":{"dois":["10.1000/xyz123"],"urls":["https://example.com/a"],"schema":"delx/util-citation-extract/v1","advisory":"Pattern harvest only; links are not fetched.","doi_count":1,"url_count":1}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_biUN0yvLVQEIJc7wnk-td","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts URL and DOI citation patterns from caller-supplied text without any network access, returning structured JSON results","exampleAgentPrompt":"Can you scan through this text I have and pull out all the URLs and DOI citations from it? Here's the content: 'See Smith et al. doi:10.1038/s41586-021-03819-2 and also https://arxiv.org/abs/2103.00020 for further reading.'","exampleUseCases":[{"title":"Academic reference harvesting from pasted paper","prompt":"I just pasted in the references section of a research paper — can you extract all the DOIs and URLs from this text without going online? 'References: 1. Jones (2022) doi:10.1016/j.cell.2022.01.001 2. arXiv https://arxiv.org/abs/2201.00001'"},{"title":"Link audit in scraped web content","prompt":"I've got a big block of HTML-stripped article text I already downloaded — can you go through it and pull out every URL citation pattern so I can audit the links? Here's the text: 'For more see https://example.com/study and the dataset at https://data.gov/d/xyz123.'"},{"title":"DOI inventory from bibliography export","prompt":"I exported my bibliography as plain text and need a clean JSON list of every DOI mentioned in it — can you extract them all from this content without fetching anything? Text: 'Müller et al. 2020, doi:10.1007/s00415-020-09912-2; Chen et al. 2019, doi:10.1093/brain/awz320'"}],"resultDescription":"A deterministic machine-readable JSON object listing all extracted URL and DOI citation patterns found in the submitted text, with no network lookups or external validation performed — purely derived from the text supplied by the caller","failureModes":["Empty or whitespace-only text input returns an empty citation list","Malformed DOIs that don't match standard patterns may not be captured","Very long text inputs may hit payload size limits","Ambiguous citation formats (non-standard DOI prefixes) may be missed","Non-UTF-8 encoded text may cause parsing errors"],"whenToPreferThis":"Choose this endpoint when you already hold text locally and need to extract URL or DOI citation patterns without any network round-trips — it is purely local, stateless, and deterministic, making it ideal for high-volume or privacy-sensitive extraction tasks where no external fetching or live web access is desired. Prefer it over general-purpose NLP or web-scraping tools when the input is already in-hand and you need fast, consistent, machine-readable citation extraction at low cost.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:57:48.149Z","isFirstParty":false}