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NexusAPI AI Keywords Extractor
x402
NexusAPI AI Keywords Extractor is a paid API for AI agents from nexus-api-virid.vercel.app, paid per call via x402, $0.118926/call, status unknown (last checked 2026-09-14).
Extracts or generates relevant keywords from a given text query using AI
Price / call$0.118926
Success—
StatusUnknown
How this service works
Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.
Output
A list of AI-generated keywords or key phrases extracted from the input query, suitable for tagging, SEO, search optimization, or content classification purposes.
Example use cases
SEO keyword research for blog
“I'm writing a blog post about 'the future of electric vehicles in urban transportation' — can you pull out the top keywords I should target for SEO?”
Tag generation for content management
“Extract relevant tags from this article summary: 'Machine learning models are increasingly being used to detect fraud in real-time banking transactions, improving security and reducing false positives.'”
Topic identification for research
“What are the key terms and concepts in this research abstract: 'Quantum entanglement enables instantaneous correlation between particles regardless of distance, challenging classical notions of locality and causality'?”
Technical details
Endpoint
POSThttps://nexus-api-virid.vercel.app/api/ai/keywordsWhen to prefer
Choose this endpoint when you need fast, AI-powered keyword extraction from arbitrary text without setting up API keys — ideal for agents performing content enrichment, SEO analysis, or tagging workflows that require pay-per-call simplicity via USDC on Base.
Side effects
- Empty or missing query field returns an error or empty keyword list
- Very short or vague queries may yield low-quality generic keywords
- Rate limiting or payment failure (402) if USDC payment on Base is not completed
- Malformed JSON body results in a 400 bad request error
- Non-English or mixed-language inputs may produce inconsistent results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Search query or input parameter |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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