# Tempest AI Content Engine — Newsletter Roundup Generator

> Tempest AI Content Engine — Newsletter Roundup Generator is a paid API for AI agents from tempost.vercel.app, paid per call via x402, $0.3/call, status unknown (last checked 2026-09-15).

Generates a structured newsletter roundup on a given topic, tailored by tone, audience, and desired sections

## Facts

- Endpoint: POST https://tempost.vercel.app/api/roundup
- Price: $0.3/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tempest-ai-content-engine-newsletter-roundup-generator-92d2f6a2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_58JvA7znIewh9nncoCVwa

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-newsletter-roundup-generator-92d2f6a2 -d '<json body>'
```

Example prompt: Write me a newsletter roundup on the topic of 'AI in healthcare' for a general tech-savvy audience, using an informative and engaging tone, and include sections for top stories, key trends, and a quick takeaways summary.

## When to prefer this

Choose this endpoint when you need to programmatically generate a complete, multi-section newsletter roundup on a specific topic at scale, especially when tone and audience customization matter. Ideal for content automation pipelines, newsletter platforms, or AI agents that produce recurring digest emails. Prefer over generic text completion APIs when structured newsletter formatting with configurable sections is required.

## Known failure modes

- Missing required 'topic' field returns validation error
- Overly vague topic may produce generic or low-quality content
- Unrecognized tone values may default to neutral or cause unexpected output
- Very long or complex sections lists may result in incomplete content
- Network or model timeout may cause a failed generation with success: false

## 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 structured newsletter roundup object containing the generated content organized by the requested sections, along with a success flag indicating whether the generation completed successfully.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "topic"
 ],
 "properties": {
  "tone": {
   "type": "string",
   "description": "Tone"
  },
  "topic": {
   "type": "string",
   "description": "Newsletter topic"
  },
  "audience": {
   "type": "string",
   "description": "Target audience"
  },
  "sections": {
   "type": "array",
   "description": "Desired sections"
  }
 }
}
```

## 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-newsletter-roundup-generator-92d2f6a2/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)