# momoAI Analyze — Pay-per-call LLM API

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

Accepts a text prompt (plus optional image or audio URL) and returns an LLM-generated response covering tasks like chat, reasoning, code review, translation, summarization, and data extraction, billed at $0.10 USDC per call.

## Facts

- Endpoint: POST https://aimomo.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-bec7806a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bAWR9e9nJJDx-utc9uHaq

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-bec7806a -d '<json body>'
```

Example prompt: Can you use momoAI to summarize this article for me and pull out the three main takeaways? Here's the text: 'Central banks worldwide are raising interest rates to combat inflation, but economists warn this could trigger a global recession by 2025.'

## When to prefer this

Choose this endpoint when you need a general-purpose LLM capability (chat, summarization, translation, code review, data extraction) on a pay-per-call basis with no subscription, billed in USDC on Base via x402. Particularly useful for agents that need multimodal analysis (image or audio + text) in a single call, or when you want crypto-native micropayment billing rather than a monthly API key plan.

## Known failure modes

- Payment failure: USDC payment on Base not completed or insufficient funds — call rejected before LLM is invoked
- Invalid prompt: missing required `prompt` field returns a validation error
- Unreachable audio/image URL: if the provided media URL is inaccessible, the call may fail or return a degraded response
- Model unavailability: underlying LLM provider outage causes 5xx response
- Rate limiting: too many concurrent calls may be throttled

## 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 (`content`), the model used, and token usage stats; a `meta` field with the price paid, endpoint, whether audio/image were included, and a timestamp; and a `success` boolean indicating whether the call succeeded.

## 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-bec7806a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aimomo.vercel.app](https://www.zero.xyz/host/aimomo.vercel.app/llms.txt)