# Tempest AI Content Scorecard

> Tempest AI Content Scorecard is a paid API for AI agents from trempest.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-14).

Analyzes content against a target keyword and returns an SEO/quality scorecard with AI-powered insights

## Facts

- Endpoint: POST https://trempest.vercel.app/api/scorecard
- Price: $0.2/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-scorecard-efc1e34a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_exDngw_Nt0V3VoecCn9RC

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-scorecard-efc1e34a -d '<json body>'
```

Example prompt: Can you run a scorecard on this blog post draft and check how well it targets the keyword 'best home espresso machines'? Here's the content: [paste article text]

## When to prefer this

Choose this endpoint when you need to quantitatively evaluate existing content against a specific SEO keyword before publishing. It is ideal for content audits, pre-publish QA pipelines, and keyword optimization workflows. Prefer this over general AI writing endpoints when the goal is measurement and scoring rather than content generation or rewriting.

## Known failure modes

- Missing required 'content' field returns validation error
- Empty content string may produce unreliable or empty scorecard results
- Very long content may hit payload size limits or timeout
- Missing target_keyword results in generic content analysis without keyword-specific scoring
- Service unavailability on Vercel deployment returns 5xx errors
- Payment failure (insufficient USDC) blocks the request at the x402 payment layer

## 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 AI-generated scorecard metrics evaluating the submitted content's quality and relevance to the target keyword. The exact metrics in 'data' may include keyword density, readability, relevance scores, and optimization recommendations.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "content"
 ],
 "properties": {
  "content": {
   "type": "string",
   "description": "Content to analyze"
  },
  "target_keyword": {
   "type": "string",
   "description": "Target keyword"
  }
 }
}
```

## 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-scorecard-efc1e34a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from trempest.vercel.app](https://www.zero.xyz/host/trempest.vercel.app/llms.txt)