# Nova AI Inference API

> Nova AI Inference API is a paid API for AI agents from novav2.orbonomy.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Pay-per-call AI inference endpoint supporting chat, reasoning, translation, analysis, and content generation, billed in USDC on Base via x402.

## Facts

- Endpoint: POST https://novav2.orbonomy.xyz/api/think
- 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/nova-ai-inference-api-6029bfa8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nxljUfGc9gSIJsui3g76i

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-6029bfa8 -d '<json body>'
```

Example prompt: Use Nova to reason through this problem for me: 'What are the trade-offs between proof-of-work and proof-of-stake blockchains?' — keep the response under 300 tokens and use a temperature of 0.7.

## When to prefer this

Choose this endpoint when you need a pay-per-call LLM inference service with crypto-native payment via USDC on Base (x402 protocol), and do not want a subscription or API key arrangement. Best for agents that need on-demand AI inference billed transparently per call, especially in Web3 or autonomous agent contexts where on-chain micropayments are preferred.

## Known failure modes

- Payment failure or insufficient USDC balance causes x402 payment rejection before inference runs
- Malformed or missing 'messages' array returns a validation error
- Exceeding model context window causes truncation or error
- Temperature or max_tokens out of allowed range may be rejected or clamped
- Service downtime on novav2.orbonomy.xyz returns a network or 5xx 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 generated text content, model name, token usage breakdown (prompt, completion, total), and finish reason, plus a 'meta' field with pricing, timestamp, and a deep_thinking boolean flag, and a top-level 'success' boolean.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "messages"
 ],
 "properties": {
  "messages": {
   "type": "array"
  },
  "max_tokens": {
   "type": "integer"
  },
  "temperature": {
   "type": "number"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object",
   "properties": {
    "id": {
     "type": "string"
    },
    "model": {
     "type": "string"
    },
    "usage": {
     "type": "object",
     "properties": {
      "total_tokens": {
       "type": "integer"
      },
      "prompt_tokens": {
       "type": "integer"
      },
      "completion_tokens": {
       "type": "integer"
      }
     }
    },
    "content": {
     "type": "string"
    },
    "finish_reason": {
     "type": "string"
    }
   }
  },
  "meta": {
   "type": "object",
   "properties": {
    "model": {
     "type": "string"
    },
    "price": {
     "type": "string"
    },
    "endpoint": {
     "type": "string"
    },
    "timestamp": {
     "type": "string"
    },
    "deep_thinking": {
     "type": "boolean"
    }
   }
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nova-ai-inference-api-6029bfa8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from novav2.orbonomy.xyz](https://www.zero.xyz/host/novav2.orbonomy.xyz/llms.txt)