# Tempest AI Content Engine — Group Classification

> Tempest AI Content Engine — Group Classification is a paid API for AI agents from tempest-2zzx.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).

Classifies text into user-defined categories using AI, supporting custom classification tasks at scale

## Facts

- Endpoint: POST https://tempest-2zzx.vercel.app/api/group
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tempest-ai-content-engine-group-classification-8e482ef3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L8vU5u4ITjdfmDjxkWYMF

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 tempest-ai-content-engine-group-classification-8e482ef3 -d '<json body>'
```

Example prompt: Classify this customer support message — 'My order never arrived and nobody is responding to my emails' — into one of these categories: billing, shipping, technical support, or general complaint.

## When to prefer this

Choose this endpoint when you need flexible, custom-category text classification without hardcoding categories — especially useful for dynamic taxonomies, routing workflows, or multi-label content tagging. Prefer it over fixed-category sentiment APIs when your categories change per use case.

## Known failure modes

- Missing required 'text' field returns validation error
- Empty categories array may cause undefined classification behavior
- Very long text inputs may exceed token limits
- Ambiguous task descriptions may yield inconsistent results
- Network timeout on Vercel cold starts under load

## How this service works

Compose, rewrite, translate, and refine content at scale. 25 AI-powered endpoints. Pay-per-call with USDC on Tempo.

## Output

Returns a JSON object with a success boolean and a data object containing the classification result, assigned category, and potentially confidence scores or additional metadata about how the text was classified.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "task": {
   "type": "string",
   "description": "Classification task"
  },
  "text": {
   "type": "string",
   "description": "Text to classify"
  },
  "categories": {
   "type": "array",
   "description": "Categories"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tempest-ai-content-engine-group-classification-8e482ef3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tempest-2zzx.vercel.app](https://www.zero.xyz/host/tempest-2zzx.vercel.app/llms.txt)