{"uid":"cap_vK_dl5auqSUBEeX0dYdr0","slug":"one-engine-hashtag-extractor-t5-fd87efee","name":"ONE Engine Hashtag Extractor (t5)","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/t5?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":"0.0025","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":"$0.0025/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WGzGW6c3VQNHe790-qUz0","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0025","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 block of text up to 50,000 characters using a pay-per-call x402 API on Base.","exampleAgentPrompt":"Can you pull out all the hashtags from this Instagram caption for me: 'Loving this golden hour shot! #photography #sunset #goldenHour #travel #nature #mood'?","exampleUseCases":[{"title":"Social media content audit","prompt":"I have a big batch of social media posts — here's one to start: 'Just launched our new product! #startup #launch #saas #tech #productHunt #buildinpublic' — can you extract all the hashtags from it?"},{"title":"Hashtag analytics pipeline","prompt":"We're building a report on trending topics. Here's a scraped blog post text — can you pull every hashtag out of it so I can count which ones appear most often?"},{"title":"Content moderation tagging","prompt":"Check this user-submitted post and list every hashtag it contains so I can flag it for category review: 'Great day hiking! #outdoors #hiking #fitness #wellness #mentalhealth'"}],"resultDescription":"Returns a JSON object containing the hashtags extracted from the input text, likely as an array of hashtag strings found within the provided content.","failureModes":["Text exceeds 50,000 character limit — request rejected","Payment not included or insufficient USDC — 402 Payment Required response","Empty or missing 'text' field — 400 Bad Request","No hashtags found in text — returns empty list","Malformed JSON body — parsing error"],"whenToPreferThis":"Choose this endpoint when you need a cheap, lightweight, pay-per-call service to extract hashtags from arbitrary text without needing a full NLP platform or managing API keys — especially when operating in an autonomous agent context on Base using x402 micropayments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:30.328Z","isFirstParty":false,"canonicalSlug":"one-engine-hashtag-extractor-t5-fd87efee"}