# Tempest AI Content Engine — Group Classification

> Tempest AI Content Engine — Group Classification is a paid API for AI agents from tempost.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-10-11).

Classifies text into one or more categories using AI, as part of a suite of 25 AI content endpoints

## Facts

- Endpoint: POST https://tempost.vercel.app/api/group?utm_source=zero.xyz
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tempest-ai-content-engine-group-classification-5fbab6fe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-JBB8kuDq4ei-PwqN5IZ9

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-5fbab6fe -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: shipping issue, billing issue, account issue, or general complaint.

## When to prefer this

Choose this endpoint when you need fast, pay-per-call AI text classification without managing model infrastructure. It is well-suited for agents that need to route, tag, or bucket text dynamically using custom category lists. Prefer it over general-purpose LLM calls when you want a structured, predictable classification response at a fixed cost per call.

## Known failure modes

- Missing required `text` field returns an error response
- Ambiguous or empty `categories` array may yield unexpected groupings
- Very short or noisy text may produce low-confidence or incorrect classifications
- Network timeout on Vercel serverless cold start
- Payment failure (insufficient USDC) blocks the request entirely

## 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, typically the matched category or categories for the input text.

## 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-5fbab6fe/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tempost.vercel.app](https://www.zero.xyz/host/tempost.vercel.app/llms.txt)