# NexusAPI AI Expand

> NexusAPI AI Expand is a paid API for AI agents from nexus-api-peach-nine.vercel.app, paid per call via x402, $0.199841/call, status unknown (last checked 2026-10-21).

Expands a text query or topic using AI, generating elaborated content or extended information from a short input

## Facts

- Endpoint: POST https://nexus-api-peach-nine.vercel.app/api/ai/expand?utm_source=zero.xyz
- Price: $0.199841/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-ai-expand-7273fb44
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OGLDqhOMqsnKarfdzCBJS

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-expand-7273fb44 -d '<json body>'
```

Example prompt: Expand this short topic into a full, detailed explanation: 'quantum entanglement' — give me a comprehensive paragraph or two about it.

## When to prefer this

Choose this endpoint when you need to take a short query, keyword, or phrase and have an AI model elaborate or expand it into richer, longer-form content. Useful for content generation pipelines, ideation, or enriching sparse data. Best suited for single-call, pay-per-use AI text expansion without API key management.

## Known failure modes

- Empty or missing query field returns a validation error
- Query too long or malformed may result in an API error
- Payment failure in USDC on Base causes a 402 response and no content returned
- Vague or ambiguous queries may produce generic or low-quality expansions
- Service downtime on Vercel hosting returns 5xx errors

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

An AI-generated expanded version of the input query, providing elaborated content, extended descriptions, or comprehensive explanations derived from the short input string.

## 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-expand-7273fb44/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-peach-nine.vercel.app](https://www.zero.xyz/host/nexus-api-peach-nine.vercel.app/llms.txt)