{"uid":"cap_INjQMNEPWWr4LpRQh_ZLY","slug":"one-engine-hashtag-extractor-545af5a3","name":"ONE Engine Hashtag Extractor","description":"Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.","url":"https://one-search.one-engine.workers.dev/v3/text-extract/hashtags/t2?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["text"],"properties":{"text":{"type":"string","description":"Text up to 50000 characters"}}},"responseSchema":{"type":"object","additionalProperties":true},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0007","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":"$0.0007/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0007","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0007","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_VzCf6KWRgJdNrjL5fVyMB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0007","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts all hashtags from a given block of text, up to 50,000 characters.","exampleAgentPrompt":"Can you pull out all the hashtags from this post? 'Loving the new season! #autumn #fashion #ootd #style vibes are immaculate #inspo'","exampleUseCases":[{"title":"Social media content audit","prompt":"I have a bunch of Instagram captions I want to analyze — can you extract all the hashtags from this caption so I can track which tags we're using? Here it is: 'Sunset vibes 🌅 #travel #wanderlust #photography #goldenhour #explore'"},{"title":"Hashtag strategy analysis","prompt":"Can you pull every hashtag out of this Twitter thread text so I can see what tags our competitors are using? Here's the full text: 'Big launch day! #startup #launch #SaaS #ProductHunt #tech #buildinpublic — come check us out!'"},{"title":"Content moderation tagging pipeline","prompt":"I need to extract all hashtags from this user-submitted post before we store it in our database: 'Join us for the event! #community #networking #NYC #marketing #digitalmarketing #growth'"}],"resultDescription":"Returns a structured object containing the list of hashtags found in the input text, parsed directly from the provided string.","failureModes":["Text exceeds 50,000 character limit — request rejected","No hashtags present in text — returns empty list","Malformed request body or missing required 'text' field — error response","Payment failure via x402 — 402 response, call not processed"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, cheap ($0.0007 USDC), pay-per-call extraction of hashtags from text without spinning up your own NLP pipeline. Ideal for agents processing social media content, building hashtag taxonomies, or running content audits at scale.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:10.583Z","isFirstParty":false,"canonicalSlug":"one-engine-hashtag-extractor-646064a9"}