# NexusAPI AI Keywords Extractor

> 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

## Facts

- Endpoint: POST https://nexus-api-virid.vercel.app/api/ai/keywords
- Price: $0.118926/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-ai-keywords-extractor-2a3a6735
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eOiGKJ4Om49eVBI46G3Bq

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability nexusapi-ai-keywords-extractor-2a3a6735 -d '<json body>'
```

Example prompt: Can you extract the most relevant keywords from this paragraph about renewable energy: 'Solar panels and wind turbines are becoming the backbone of the global clean energy transition, reducing dependence on fossil fuels and cutting carbon emissions'?

## When to prefer this

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.

## Known failure modes

- 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

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexusapi-ai-keywords-extractor-2a3a6735/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-virid.vercel.app](https://www.zero.xyz/host/nexus-api-virid.vercel.app/llms.txt)