{"uid":"cap_CAsvCv_sOMwBCyjnbIe2k","slug":"one-engine-hashtag-extractor-t3-1a9d6522","name":"ONE Engine Hashtag Extractor (T3)","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/t3?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":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__jKMX8TKq45dTsLtBCvYu","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","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 up to 50,000 characters","exampleAgentPrompt":"Can you pull out the best hashtags from this caption I wrote for Instagram? Here it is: 'Just wrapped up an incredible sunrise hike through the Cascades — the views were unreal and my legs are officially done for the week.'","exampleUseCases":[{"title":"Social media post tagging","prompt":"I just wrote this LinkedIn post about AI trends in 2025 and I need hashtag suggestions — can you extract the most relevant ones from the text? Here's the post: 'Generative AI is no longer a novelty — it's reshaping how enterprises hire, build products, and serve customers at scale.'"},{"title":"Blog article hashtag generation","prompt":"I have a 2,000-word blog post about sustainable fashion and zero-waste living. Can you read through it and pull out all the hashtags I should use when I share it on social?"},{"title":"Marketing copy enrichment","prompt":"We're launching a new product and I wrote some promo copy. Can you extract the best hashtags from it so I can tag our social posts consistently? Here's the copy: 'Introducing EcoBottle Pro — the world's first fully compostable smart water bottle with hydration tracking built right in.'"}],"resultDescription":"A JSON object containing an array or set of extracted and recommended hashtags derived from the input text, suitable for use on social media platforms or for content tagging purposes.","failureModes":["Text exceeds 50,000 character limit — request rejected","Empty or missing 'text' field — validation error","Ambiguous or very short text may yield few or low-quality hashtags","Payment failure via x402 protocol — 402 response before processing begins","Network timeout on the Cloudflare Worker edge node"],"whenToPreferThis":"Choose this endpoint when you need to automatically generate or extract hashtags from a body of text for social media, content tagging, or SEO purposes. It is especially useful for agents handling content pipelines, social media scheduling, or marketing copy workflows where consistent and relevant tagging is needed at low cost per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:42:38.203Z","isFirstParty":false,"canonicalSlug":"one-engine-hashtag-extractor-t3-1a9d6522"}