{"uid":"cap_VEczE-2mzhuB3zZeaU92b","slug":"one-engine-text-hashtag-extractor-cf954be4","name":"ONE Engine Text 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-token/hashtags/t1?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":"0.0005","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":"$0.0005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_pEzaesLW_2rPKuHlgpn2H","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0005","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 given text string of up to 50,000 characters.","exampleAgentPrompt":"Can you pull out the best hashtags from this text I wrote for my Instagram post: 'Just finished a sunrise hike through the Cascades — the views were unreal, can't wait to go back this fall!'?","exampleUseCases":[{"title":"Social media caption tagging","prompt":"Here's my caption for a LinkedIn post about AI trends in healthcare — can you extract the most relevant hashtags from it so I can boost reach? 'Machine learning is reshaping diagnostics, enabling earlier detection of conditions like cancer and diabetes through pattern recognition in medical imaging.'"},{"title":"Blog post SEO hashtag generation","prompt":"I wrote a 2,000-word blog post about sustainable fashion and zero-waste living — can you analyze the text and give me a list of hashtags I should attach when I share it on Twitter?"},{"title":"Bulk content tagging for a newsletter","prompt":"I have the full text of this week's marketing newsletter — can you go through it and extract hashtags that match the main topics so I can tag it properly across our social channels?"}],"resultDescription":"Returns an object containing extracted hashtags derived from the input text, suitable for use in social media posts, content tagging, or SEO labeling. The exact response structure may include arrays of hashtag strings or scored tag suggestions.","failureModes":["Text exceeds 50,000 character limit — request rejected or truncated","Empty or whitespace-only text input returns no hashtags","Payment failure via x402 protocol results in 402 response and no content returned","Ambiguous or very short text may yield few or low-quality hashtags","Network timeout on Cloudflare Workers edge node"],"whenToPreferThis":"Choose this endpoint when you need fast, low-cost hashtag extraction from arbitrary text at scale, especially in agentic pipelines where cost-per-call matters. Ideal for automating social media tagging, content enrichment, or SEO workflows where you need hashtags derived directly from source text rather than user-supplied keywords. Its pay-per-call x402 pricing on Base makes it suitable for high-volume or sporadic usage without subscription overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:39.120Z","isFirstParty":false,"canonicalSlug":"one-engine-text-hashtag-extractor-247977a9"}