{"uid":"cap_u3PiwvLVlE4iznroL7-3i","slug":"one-engine-hashtag-extractor-t5-09c1ac01","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-token/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_YhKFruUcF2DtwdEBmMFlI","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 relevant hashtags from a block of text using a T5-based model, returning suggested hashtags for content tagging or social media use.","exampleAgentPrompt":"Can you pull out the best hashtags from this blog post I'm about to share? Here's the full text: 'Artificial intelligence is transforming the way businesses operate, from automating routine tasks to enabling smarter decision-making across industries...'","exampleUseCases":[{"title":"Social media post tagging","prompt":"I just wrote this LinkedIn post about sustainable fashion — can you extract the most relevant hashtags from it so I can add them before publishing? Here's the text: 'Fast fashion is one of the largest polluters on the planet. Switching to sustainable brands isn't just a trend, it's a necessity...'"},{"title":"Blog SEO hashtag generation","prompt":"I'm posting this tech article to Medium and want to maximize discoverability. Pull out the top hashtags from this text: 'Machine learning pipelines are increasingly being deployed at the edge, reducing latency and improving privacy for end users...'"},{"title":"Marketing copy tag extraction","prompt":"Help me tag this product launch announcement with the right hashtags before we go live on Instagram. Here's the copy: 'Introducing the all-new SmartBrew Pro — the coffee maker that learns your preferences and brews your perfect cup every morning.'"}],"resultDescription":"Returns a JSON object containing suggested hashtags derived from the input text, likely as an array of hashtag strings (e.g. '#AI', '#MachineLearning') or a structured object with tags and possibly relevance metadata. The exact schema is open (additionalProperties: true).","failureModes":["Text exceeds 50,000 character limit — request rejected or truncated","Empty or whitespace-only text input — may return empty hashtag list or error","Ambiguous or too-short text — T5 model may return generic or low-quality hashtags","Network or worker timeout on Cloudflare edge — transient 5xx error","Payment failure via x402/Base — 402 response if USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when you need fast, low-cost automated hashtag extraction from arbitrary text at $0.0025 per call, especially in agentic workflows on Base/x402 where micropayment-per-call billing is preferred. Ideal for content pipelines, social media schedulers, or publishing agents that need to auto-tag posts at scale without a subscription model.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:27.513Z","isFirstParty":false,"canonicalSlug":"one-engine-hashtag-extractor-t5-fd87efee"}