# Nova AI Inference API

> Nova AI Inference API is a paid API for AI agents from nova.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Pay-per-call AI inference endpoint supporting chat, reasoning, translation, analysis, and generation via USDC micropayment on Base.

## Facts

- Endpoint: POST https://nova.orbonomy.xyz/api/generate
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nova-ai-inference-api-2fd54278
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5V4NcjKTAjshj61fSXLpU

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 nova-ai-inference-api-2fd54278 -d '<json body>'
```

Example prompt: Using Nova, generate a structured JSON response to this prompt: 'List 3 pros and 3 cons of remote work' — return it as JSON with keys pros and cons, each an array of strings.

## When to prefer this

Choose Nova when you need flexible, general-purpose AI inference (chat, reasoning, translation, analysis, or generation) paid per-call with USDC on Base, especially in agentic or micropayment-native workflows where subscription models are impractical.

## Known failure modes

- Missing required 'prompt' field returns a validation error
- Payment not received or insufficient USDC balance causes 402 Payment Required
- Invalid JSON schema in 'schema' field causes schema validation failure
- Unsupported output format value may result in unexpected output
- Upstream model provider unavailability causes 503 or timeout error

## How this service works

Pay-per-call AI inference. Chat, reason, translate, analyze, generate. USDC on Base.

## Output

A JSON object containing a success flag, the generated output text or structured data, the model and provider that handled the request, the output format, and usage statistics.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "prompt"
 ],
 "properties": {
  "format": {
   "type": "string"
  },
  "prompt": {
   "type": "string",
   "description": "What to generate"
  },
  "schema": {
   "type": "object",
   "description": "Expected output schema (for JSON)"
  },
  "examples": {
   "type": "object",
   "description": "Example output for reference"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object",
   "properties": {
    "model": {
     "type": "string"
    },
    "usage": {
     "type": "object"
    },
    "format": {
     "type": "string"
    },
    "output": {
     "type": "string"
    },
    "provider": {
     "type": "string"
    }
   }
  },
  "meta": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nova-ai-inference-api-2fd54278/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nova.orbonomy.xyz](https://www.zero.xyz/host/nova.orbonomy.xyz/llms.txt)