{"uid":"cap_4CKsuXE7UgDtRsj0Kw_Eu","slug":"issn-regex-extractor-49f3d4aa","name":"ISSN Regex Extractor","description":"Call when an agent needs ISSN tokens extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/regex-issn first.","url":"https://agentshelf.syntexa.ch/v1/regex-issn?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","examples":["1234-5678"],"maxLength":100000,"minLength":1,"description":"Input for this SKU. The route description says whether it is plain text, a URL, base64 bytes, or an already-encoded token."}}},"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_hGntYEs4UjSRSN0lNO-U_","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 up to 20 ISSN tokens from a given text string using regex matching, returning all found identifiers.","exampleAgentPrompt":"Can you pull out all the ISSN numbers from this text? Here it is: 'The journal (ISSN 1234-5678) and its digital edition (ISSN 8765-4321) are both indexed in the database.'","exampleUseCases":[{"title":"Bibliographic metadata extraction pipeline","prompt":"I have a batch of citation strings from our library database — can you scan this text and extract every ISSN you find in it? Here's the text: 'Nature (ISSN 0028-0836), Science (ISSN 0036-8075), and Cell (ISSN 0092-8674) are the top journals.'"},{"title":"Journal deduplication from scraped content","prompt":"We scraped a bunch of publisher pages and dumped them all into one big text blob — can you extract every ISSN number from it so we can deduplicate our journal list?"},{"title":"Validate citation references for ISSN presence","prompt":"I've got this block of reference text from a research paper and I need to know which citations include an ISSN. Can you extract all the ISSN codes from it: 'See Jones et al. in ISSN 1756-2848 and Smith et al. in ISSN 2041-1723.'"}],"resultDescription":"Returns a JSON list of up to 20 ISSN token strings found in the input text. If no ISSNs are present, an empty list is returned — note that an empty result is still billed. Matching is done via regex with no network calls.","failureModes":["Empty match list returned (but still billed $0.01 USDC) when no ISSN patterns are found in the text","Input text exceeds 100,000 character limit, causing a validation error","Malformed or non-standard ISSN-like strings may not be captured if they deviate from the expected regex pattern","Payment failure if the agent's USDC balance is insufficient","Only the first 20 matches are returned even if more ISSNs exist in the text"],"whenToPreferThis":"Choose this endpoint when you need to extract ISSN identifiers from text without any network dependency — it runs a pure regex match server-side, making it fast and deterministic. Prefer the free sandbox endpoint POST /v1/sandbox/regex-issn for testing before committing to paid calls. Use this over general-purpose NLP or entity extraction services when you specifically need ISSN serial identifiers with a strict cap of 20 results and predictable $0.01 USDC pricing per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:47:31.502Z","isFirstParty":false,"canonicalSlug":"issn-regex-extractor-49f3d4aa"}