# Nova AI Inference API

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

Pay-per-call AI inference endpoint that accepts a text prompt and returns generated, reasoned, translated, or analyzed output with optional JSON schema formatting.

## Facts

- Endpoint: POST https://nuvo.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-d4834d91
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RGEhg5gdLlz_y8--ls5Cw

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-d4834d91 -d '<json body>'
```

Example prompt: Use Nova to generate a concise, professional summary of the following meeting transcript and return it as plain text: 'The team discussed Q3 targets, identified three key blockers, and agreed to weekly check-ins going forward.'

## When to prefer this

Choose this endpoint when you need flexible, on-demand AI inference (chat, reasoning, translation, analysis, generation) without a subscription, especially when paying with USDC on Base via x402. Ideal for agents that need occasional AI calls without managing separate API keys or subscriptions, and when structured JSON output via schema is needed.

## Known failure modes

- Payment not received or insufficient USDC — 402 response blocking execution
- Malformed prompt field missing from request body — validation error
- Invalid JSON schema provided in 'schema' field — schema parsing error
- Model or provider unavailable — internal server error or timeout
- Prompt too long or exceeds token limits — truncation or rejection error

## 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 name, provider, output format, the generated output text, and usage stats, along with a 'success' boolean and metadata object.

## 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-d4834d91/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nuvo.orbonomy.xyz](https://www.zero.xyz/host/nuvo.orbonomy.xyz/llms.txt)