# momoAI Analyze — Pay-per-Call LLM API

> momoAI Analyze — Pay-per-Call LLM API is a paid API for AI agents from momoai-cyan.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Sends a text prompt (optionally with image or audio) to a pay-per-use LLM and returns AI-generated analysis, answers, code review, translation, or extracted data for $0.10 USDC per call.

## Facts

- Endpoint: POST https://momoai-cyan.vercel.app/api/analyze
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/momoai-analyze-pay-per-call-llm-api-a7283005
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fgvMPsiypMk66mxgu3bdT

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 momoai-analyze-pay-per-call-llm-api-a7283005 -d '<json body>'
```

Example prompt: Use momoAI to review this Python function for bugs and suggest improvements: 'def add(a, b): return a - b' — pay the $0.10 USDC call fee automatically.

## When to prefer this

Choose this endpoint when you need a flexible, on-demand LLM call with no subscription commitment and are comfortable paying $0.10 USDC per call via x402 on Base. It supports multimodal input (text + image + audio) in a single call, making it ideal for agents that need occasional AI analysis, code review, translation, or data extraction without managing API keys or monthly plans.

## Known failure modes

- Payment not authorized or insufficient USDC balance — payment rejected before LLM call executes
- Invalid or unreachable image_url or audio_url — LLM call may fail or ignore the media
- Empty or missing 'prompt' field — request rejected with validation error
- LLM backend timeout or overload — success: false with no content returned
- Vercel cold start latency causing delayed response on first call

## How this service works

Pay-per-use LLM API. Chat, reasoning, code review, translation, summarization, data extraction, and more. Pay with USDC on Base.

## Output

Returns a JSON object with a 'data' field containing the LLM's text response, the model used, and token usage stats; a 'meta' field with price, endpoint, whether audio/image were present, and a timestamp; and a top-level 'success' boolean.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "prompt"
 ],
 "properties": {
  "prompt": {
   "type": "string",
   "description": "What to analyze"
  },
  "audio_url": {
   "type": "string",
   "description": "Audio URL"
  },
  "image_url": {
   "type": "string",
   "description": "Image URL"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object",
   "properties": {
    "id": {
     "type": "string"
    },
    "model": {
     "type": "string"
    },
    "usage": {
     "type": "object"
    },
    "content": {
     "type": "string"
    }
   }
  },
  "meta": {
   "type": "object",
   "properties": {
    "price": {
     "type": "string"
    },
    "endpoint": {
     "type": "string"
    },
    "has_audio": {
     "type": "boolean"
    },
    "has_image": {
     "type": "boolean"
    },
    "timestamp": {
     "type": "string"
    }
   }
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/momoai-analyze-pay-per-call-llm-api-a7283005/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from momoai-cyan.vercel.app](https://www.zero.xyz/host/momoai-cyan.vercel.app/llms.txt)