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ONE Engine Hashtag Extractor
x402
ONE Engine Hashtag Extractor is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Extracts hashtags from a given text string of up to 50,000 characters.
Price / call$0.01
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns a JSON object containing the extracted hashtags found in the provided text, likely as an array of hashtag strings (e.g. ['#sunset', '#travel']).
Example use cases
Social media analytics pipeline
“I have a batch of Twitter posts and I need to extract every hashtag from this one: 'Big day for crypto! #Bitcoin #Ethereum #DeFi #Web3 are all surging right now 🚀' — can you pull out all the hashtags?”
Content moderation hashtag review
“Check this user-submitted post for hashtags so I can run them through our policy filter: 'Join us at the rally! #FreedomMarch #JusticeNow #Protest #EndCorruption — spread the word!'”
Influencer campaign tag tracking
“We need to know which campaign hashtags an influencer used in their post — can you extract the hashtags from this caption: 'So grateful to partner with @BrandX! #Ad #Sponsored #BrandXLaunch #SummerVibes #Collab'?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-extract/hashtags/t8?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call hashtag extraction utility without setting up a full NLP pipeline. At $0.01 USDC per call via x402 on Base, it is cost-effective for autonomous agents processing social media content at scale. Prefer this over regex-based DIY solutions when reliability and simplicity matter, and over heavier NLP APIs when you only need hashtag extraction without sentiment or entity analysis.
Side effects
- Text exceeds 50,000 character limit — request rejected or truncated
- Empty or missing 'text' field — validation error returned
- No hashtags present in text — returns empty list
- Payment not included or insufficient — HTTP 402 response requiring x402 payment on Base
- Malformed request body — 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | Text up to 50000 characters |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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