# NexusAPI SEO Keyword Research

> NexusAPI SEO Keyword Research is a paid API for AI agents from nexus-api-virid.vercel.app, paid per call via x402, $0.015229/call, status unknown (last checked 2026-09-15).

Generates SEO keyword suggestions and related search terms for a given query or topic

## Facts

- Endpoint: POST https://nexus-api-virid.vercel.app/api/ai/seo/keywords
- Price: $0.015229/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-seo-keyword-research-21b92732
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9xlphuXhEMZc6v4rFyONS

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-seo-keyword-research-21b92732 -d '<json body>'
```

Example prompt: Can you generate a list of SEO keywords I should target for a blog post about 'home coffee brewing methods'?

## When to prefer this

Choose this endpoint when you need quick, pay-per-call keyword ideation without managing API keys or subscriptions. Ideal for AI agents automating content workflows that need SEO keyword data on demand, especially when integrated into Base/USDC payment flows via x402.

## Known failure modes

- Empty or vague query returns generic or low-quality keyword suggestions
- Query too long or malformed may return an error
- Payment failure (402) if USDC balance is insufficient
- Rate limiting or server errors from the underlying provider
- Non-English queries may return incomplete 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 SEO keyword suggestions and related search terms relevant to the input query, useful for content planning, on-page optimization, and organic search strategy.

## 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-seo-keyword-research-21b92732/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)