# Nova AI Inference API

> Nova AI Inference API is a paid API for AI agents from ova.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://ova.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-519b782b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s3CNBcKKO97xWN5j-hVw1

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-519b782b -d '<json body>'
```

Example prompt: Use Nova to generate a structured JSON response — given the prompt 'List three pros and cons of remote work', return output in JSON format matching a schema with 'pros' and 'cons' arrays of strings.

## When to prefer this

Choose this endpoint when you need on-demand AI inference billed per call with no subscription, paid in USDC on Base via x402 micropayment. Ideal for agents needing occasional AI generation, translation, or reasoning without maintaining a separate LLM API key.

## Known failure modes

- Insufficient USDC balance — payment fails before inference runs
- Missing required 'prompt' field — returns validation error
- Invalid JSON schema provided — schema parsing may fail or be ignored
- Model unavailable or overloaded — may return 5xx error
- Malformed output format request — output may default to plain text

## How this service works

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

## Output

Returns a JSON object with a 'data' field containing the model used, provider, output format, the generated output text, and usage statistics, plus a 'success' boolean and metadata.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "prompt"
 ],
 "properties": {
  "format": {
   "enum": [
    "json",
    "csv",
    "markdown",
    "html",
    "yaml"
   ],
   "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-519b782b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ova.orbonomy.xyz](https://www.zero.xyz/host/ova.orbonomy.xyz/llms.txt)