# Nova AI Text Rewrite API

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

Rewrites input text with a specified tone and style while optionally preserving meaning, paid per call in USDC on Base.

## Facts

- Endpoint: POST https://novva.orbonomy.xyz/api/rewrite
- 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-text-rewrite-api-9bc296c8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SQjmTDuWDpPY9xJcHlYs9

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-text-rewrite-api-9bc296c8 -d '<json body>'
```

Example prompt: Rewrite the following paragraph in a professional tone, preserving the original meaning: 'We messed up the order and we're really sorry about that. We'll fix it right away.'

## When to prefer this

Choose this endpoint when you need on-demand, pay-per-call AI text rewriting with crypto payment (USDC on Base) and want control over tone and style. Prefer it over subscription-based rewrite APIs when cost-per-call transparency matters or when building USDC-native agent workflows.

## Known failure modes

- Missing required 'text' field returns a validation error
- Payment failure or insufficient USDC balance blocks the call
- Invalid tone or style value may result in default behavior or an error
- Rate limiting if too many concurrent calls are made
- Model unavailability on the provider side causes inference failure

## How this service works

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

## Output

A JSON object containing the rewritten text, the original text, the AI model and provider used, style applied, and token usage statistics, all wrapped in a success envelope.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "Text to rewrite"
  },
  "tone": {
   "type": "string",
   "description": "Tone override"
  },
  "style": {
   "enum": [
    "professional",
    "casual",
    "academic",
    "creative",
    "concise",
    "expand",
    "simplify",
    "formal"
   ],
   "type": "string"
  },
  "preserve_meaning": {
   "type": "boolean"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object",
   "properties": {
    "model": {
     "type": "string"
    },
    "style": {
     "type": "string"
    },
    "usage": {
     "type": "object"
    },
    "original": {
     "type": "string"
    },
    "provider": {
     "type": "string"
    },
    "rewritten": {
     "type": "string"
    }
   }
  },
  "meta": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nova-ai-text-rewrite-api-9bc296c8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from novva.orbonomy.xyz](https://www.zero.xyz/host/novva.orbonomy.xyz/llms.txt)