# CIEL M2M API – Prompt Optimize

> CIEL M2M API – Prompt Optimize is a paid API for AI agents from 169.58.38.67.sslip.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-18).

Optimizes or rewrites a given prompt to improve clarity, specificity, or AI model performance

## Facts

- Endpoint: GET https://169.58.38.67.sslip.io/api/prompt-optimize
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ciel-m2m-api-prompt-optimize-f316ecdd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p7ql5e34F6XSUIldB79nh

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 ciel-m2m-api-prompt-optimize-f316ecdd
```

Example prompt: Can you optimize this prompt for me so it gets better results from an AI model: 'Write me a blog post about coffee'? I want it to be more specific and detailed.

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call prompt optimization service without a subscription commitment. It is well-suited for AI agents that need to programmatically improve prompts before passing them to an LLM, especially in lightweight pipelines where $0.02 USDC per call via x402 on Base is acceptable. Prefer alternatives if you need batch processing, highly structured prompt templates, or guaranteed schema validation.

## Known failure modes

- Empty or missing prompt input returns an error or unhelpful result
- Malformed properties string may cause parsing failure or generic output
- Very long prompts may be truncated or return degraded results
- Network timeouts due to raw IP-based hosting with sslip.io domain
- Ambiguous input schema ('properties' field is loosely typed) may produce inconsistent outputs

## How this service works

50+ micro-services for AI agents: data parsing, crypto analytics, security scanning, code tools, and more. Pay per call via x402 (USDC on Base) or RapidAPI subscription.

## Output

Returns a JSON object with a 'result' field containing the optimized or rewritten version of the submitted prompt, ready for use with an AI model.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "data"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ciel-m2m-api-prompt-optimize-f316ecdd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 169.58.38.67.sslip.io](https://www.zero.xyz/host/169.58.38.67.sslip.io/llms.txt)