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ONE Engine Hashtag Extractor (T9)
x402
ONE Engine Hashtag Extractor (T9) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.018/call, status unknown (last checked 2026-10-02).
Extracts hashtags from a given text string using T9-style processing, returning all identified hashtag tokens.
Price / call$0.018
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns a structured object containing the list of hashtags found in the submitted text. Each hashtag is identified as it appears in the input (including the # symbol), enabling downstream aggregation, deduplication, or trend analysis.
Example use cases
Social media post hashtag audit
“Here's the text from our last 10 Instagram posts — can you extract all the hashtags from each one so I can see which tags we've been using most?”
Content moderation hashtag scanning
“I need to check this user-submitted post for hashtags before it goes live — can you pull out every hashtag from this text: 'Big sale this weekend! #discount #deals #shopnow #limitedtime'?”
Hashtag strategy research from competitor posts
“I've copied the captions from a competitor's last 20 tweets into this text block — can you extract all the hashtags so I can analyze what topics they're targeting?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-extract/hashtags/t9?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cheap, low-latency, pay-per-call hashtag extraction from raw text without setting up a full NLP pipeline. It is ideal for agents processing social media content, user-generated text, or scraped posts where hashtag identification is a discrete step. At $0.018 USDC per call via x402 on Base, it suits high-volume agentic workflows where cost predictability matters and no subscription or API key management is desired.
Side effects
- Text exceeds 50,000 character limit — request rejected with validation error
- Empty or missing 'text' field — returns error due to required field constraint
- Text with no hashtags — returns empty hashtag list
- Payment not attached or insufficient USDC — x402 payment required error
- Malformed JSON body — request parsing error
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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