# momoAI Pipeline — Pay-per-Call LLM API

> momoAI Pipeline — Pay-per-Call LLM API is a paid API for AI agents from momoai-cyan.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).

Executes a multi-step LLM pipeline for tasks like chat, reasoning, code review, translation, summarization, and data extraction, paid per call with USDC on Base.

## Facts

- Endpoint: POST https://momoai-cyan.vercel.app/api/pipeline
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/momoai-pipeline-pay-per-call-llm-api-badf594c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_px9m8mJYewTDtoIDnUoB-

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-pipeline-pay-per-call-llm-api-badf594c -d '<json body>'
```

Example prompt: Run this text through momoAI's pipeline to summarize and then extract the key action items from it: 'The quarterly review showed strong revenue growth but highlighted supply chain delays. Teams should prioritize vendor negotiations and increase buffer stock by Q3.'

## When to prefer this

Choose this endpoint when you need a flexible, multi-step LLM pipeline that you can pay for per-call using USDC on Base — ideal for agents that want to avoid subscription-based LLM APIs, need crypto-native micropayments, or want to chain tasks like summarization, translation, extraction, and reasoning in a single request.

## Known failure modes

- Payment failure: USDC balance insufficient or Base transaction rejected — returns 402 Payment Required
- Invalid steps array: missing or malformed pipeline steps — returns 400 Bad Request
- LLM provider error: upstream model unavailable — returns 500 or error in meta field
- Empty initial_input with steps that require it — may return empty or error output
- Rate limiting or quota exceeded — returns 429 Too Many Requests

## 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 success status, final_output string (the LLM's response), per-step results object, total token usage stats, and the number of steps executed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "steps"
 ],
 "properties": {
  "steps": {
   "type": "array"
  },
  "initial_input": {
   "type": "string",
   "description": "Input text for the pipeline"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object",
   "properties": {
    "results": {
     "type": "object"
    },
    "total_usage": {
     "type": "object"
    },
    "final_output": {
     "type": "string"
    },
    "steps_executed": {
     "type": "integer"
    }
   }
  },
  "meta": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/momoai-pipeline-pay-per-call-llm-api-badf594c/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)