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Tempest AI Content Engine — Keyword Extraction
x402
Tempest AI Content Engine — Keyword Extraction is a paid API for AI agents from tempestars.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).
Extracts a specified number of keywords from a given block of text using AI
Price / call$0.15
Success—
StatusUnknown
How this service works
Compose, rewrite, translate, and refine content at scale. 25 AI-powered endpoints. Pay-per-call with USDC on Tempo.
Output
Returns a JSON object with a success boolean and a data object containing the extracted keywords from the input text, up to the requested count.
Example use cases
SEO keyword research from blog draft
“I've drafted this blog post about sustainable fashion — can you extract the 10 most important keywords from it so I know which terms to optimize for?”
Topic tagging for content library
“Take this article summary and pull out 5 keywords so I can tag it properly in our content management system.”
Competitor content analysis
“Here's a paragraph from a competitor's landing page — give me the top 6 keywords they're targeting so I can compare them to ours.”
Technical details
Endpoint
POSThttps://tempestars.vercel.app/api/keywordsWhen to prefer
Choose this endpoint when you need fast, AI-powered keyword extraction from arbitrary text at pay-per-call pricing — ideal for automating SEO workflows, content tagging, or topic analysis without committing to a subscription. Prefer it over general NLP libraries when you want a managed, low-friction API with no model setup required.
Side effects
- Empty or missing text field returns an error
- Count parameter too large may return fewer keywords than requested
- Very short input text may yield fewer keywords than the count requested
- Network or payment failure returns a non-2xx HTTP response
- Malformed JSON body causes a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | Text to extract keywords from |
| count | number | Number of keywords |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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