{"uid":"cap_GUsR8OdwGjmqHwVjG0d9v","slug":"one-engine-hashtag-extractor-291988f0","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/t8?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":"0.01","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__Ax8TXF74s-Z4UYUy5CfT","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 hashtags from a given text string of up to 50,000 characters.","exampleAgentPrompt":"Pull all the hashtags out of this Instagram caption for me: 'Loving the golden hour vibes ✨ #sunset #goldenhour #photography #nature #travel — what a day!'","exampleUseCases":[{"title":"Social media analytics pipeline","prompt":"I have a batch of Twitter posts and I need to extract every hashtag from this one: 'Big day for crypto! #Bitcoin #Ethereum #DeFi #Web3 are all surging right now 🚀' — can you pull out all the hashtags?"},{"title":"Content moderation hashtag review","prompt":"Check this user-submitted post for hashtags so I can run them through our policy filter: 'Join us at the rally! #FreedomMarch #JusticeNow #Protest #EndCorruption — spread the word!'"},{"title":"Influencer campaign tag tracking","prompt":"We need to know which campaign hashtags an influencer used in their post — can you extract the hashtags from this caption: 'So grateful to partner with @BrandX! #Ad #Sponsored #BrandXLaunch #SummerVibes #Collab'?"}],"resultDescription":"Returns a JSON object containing the extracted hashtags found in the provided text, likely as an array of hashtag strings (e.g. ['#sunset', '#travel']).","failureModes":["Text exceeds 50,000 character limit — request rejected or truncated","Empty or missing 'text' field — validation error returned","No hashtags present in text — returns empty list","Payment not included or insufficient — HTTP 402 response requiring x402 payment on Base","Malformed request body — 400 bad request"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call hashtag extraction utility without setting up a full NLP pipeline. At $0.01 USDC per call via x402 on Base, it is cost-effective for autonomous agents processing social media content at scale. Prefer this over regex-based DIY solutions when reliability and simplicity matter, and over heavier NLP APIs when you only need hashtag extraction without sentiment or entity analysis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:36.035Z","isFirstParty":false,"canonicalSlug":"one-engine-hashtag-extractor-646064a9"}