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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, $0.0015/call, status unknown (last checked 2026-10-02).
Extracts all hashtags from a given text string, returning them as a structured list
Price / call$0.0015
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
A structured object containing the list of hashtags found within the input text, extracted and returned as discrete tokens (e.g. ['#sunset', '#travel', '#photography']). The response schema is open (additionalProperties: true), so the exact field names may vary.
Example use cases
Social media hashtag audit
“Here's the text from our last 5 Instagram posts combined — can you extract every hashtag that appears so I can see which ones we're using most?”
Content moderation hashtag scan
“I need you to pull all the hashtags out of this user-submitted post so I can check them against our banned tag list: 'Just got back from the best trip ever! #adventure #travel #nofilter #blessed #wanderlust'”
Campaign hashtag tracking
“Extract all the hashtags from this tweet thread so I can track which campaign tags our influencer actually used in their post.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-extract/hashtags/t4?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, cheap ($0.0015 USDC), pay-per-call extraction of hashtags from text without spinning up your own regex or NLP pipeline. Ideal for autonomous agents that process social media content at scale and need a reliable microservice for hashtag parsing. Not suitable for full social media analytics, sentiment analysis, or mention extraction.
Side effects
- Text exceeds 50,000 character limit — request rejected
- Empty text input — may return empty hashtag list or error
- Text with no hashtags — returns empty list
- Malformed JSON body — 400 error
- Payment not provided or insufficient — 402 Payment Required via x402 protocol
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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