{"uid":"cap_4gojBUiHwryoyKUfoPMFV","slug":"one-engine-hashtag-extractor-5f22e5e2","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/t4?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":"0.0015","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":"$0.0015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_eqtf5nDjbmvuu_f92Iguf","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0015","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 text string, returning them as a structured list","exampleAgentPrompt":"Pull all the hashtags out of this Instagram caption for me: 'Loving the golden hour vibes today 🌅 #sunset #photography #travel #goldenHour #nature #landscapephotography.'","exampleUseCases":[{"title":"Social media hashtag audit","prompt":"Here's the text from our last 5 Instagram posts combined — can you extract every hashtag that appears so I can see which ones we're using most?"},{"title":"Content moderation hashtag scan","prompt":"I need you to pull all the hashtags out of this user-submitted post so I can check them against our banned tag list: 'Just got back from the best trip ever! #adventure #travel #nofilter #blessed #wanderlust'"},{"title":"Campaign hashtag tracking","prompt":"Extract all the hashtags from this tweet thread so I can track which campaign tags our influencer actually used in their post."}],"resultDescription":"A structured object containing the list of hashtags found within the input text, extracted and returned as discrete tokens (e.g. ['#sunset', '#travel', '#photography']). The response schema is open (additionalProperties: true), so the exact field names may vary.","failureModes":["Text exceeds 50,000 character limit — request rejected","Empty text input — may return empty hashtag list or error","Text with no hashtags — returns empty list","Malformed JSON body — 400 error","Payment not provided or insufficient — 402 Payment Required via x402 protocol"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, cheap ($0.0015 USDC), pay-per-call extraction of hashtags from text without spinning up your own regex or NLP pipeline. Ideal for autonomous agents that process social media content at scale and need a reliable microservice for hashtag parsing. Not suitable for full social media analytics, sentiment analysis, or mention extraction.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:30.871Z","isFirstParty":false,"canonicalSlug":"one-engine-hashtag-extractor-646064a9"}