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Tempest Keyword Extractor
x402
Tempest Keyword Extractor is a paid API for AI agents from whatchuneed.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).
Extracts ranked keywords with relevance scores from a given text input
Price / call$0.15
Success—
StatusUnknown
How this service works
320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.
Output
Returns a list of extracted keywords each with a relevance score (float), plus the total count of keywords found. Keywords are ranked by semantic importance to the input text.
Example use cases
SEO keyword research from blog draft
“I just wrote a blog post about electric vehicles — can you pull out the top 15 most relevant keywords from it so I can optimize my SEO strategy?”
Topic tagging for news article
“Extract the 5 most important keywords from this news article so I can automatically tag it in our CMS: 'The Federal Reserve raised interest rates by 25 basis points amid concerns about persistent inflation and slowing economic growth.'”
Content summarization via key terms
“What are the top 8 keywords by relevance in this product description? I want to understand what topics it's really about: 'Our ergonomic standing desk features height-adjustable motorized legs, a bamboo surface, and built-in cable management for a clutter-free workspace.'”
Technical details
Endpoint
POSThttps://whatchuneed.vercel.app/api/tempest/keywordsWhen to prefer
Use this endpoint when you need fast, pay-per-call keyword extraction without provisioning an NLP service. Ideal for lightweight SEO analysis, content tagging, or topic detection pipelines where you want relevance-ranked terms rather than raw frequency counts.
Side effects
- Missing required 'text' field returns a validation error
- Empty string input may return zero keywords
- Very short inputs may yield low-quality or sparse keyword results
- Non-English text may produce unreliable relevance scores
- Count parameter exceeding available distinct keywords returns fewer results than requested
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | |
| count | integer |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| total | integer | |
| keywords | array |
Tags
x402
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