# OpenClaw Voice Rewrite API

> OpenClaw Voice Rewrite API is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-07).

Rewrites or transforms voice/text content via a paid x402-gated GET endpoint requiring USDC micropayment per call

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/voicerewrite?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-07
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openclaw-voice-rewrite-api-7b393b4d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s5YJ8qWPtiUy7mRS3ixPM

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 openclaw-voice-rewrite-api-7b393b4d
```

Example prompt: Can you rewrite this paragraph so it sounds natural when read aloud by a voice assistant? Here's the text: 'Our Q3 financial results exceeded analyst expectations by 12%, driven primarily by strong performance in the enterprise segment.'

## When to prefer this

Choose this endpoint when you need to rewrite text content specifically for voice/spoken delivery and are operating within an x402 micropayment-enabled agent stack using USDC. It is best suited for agents that already handle EIP-3009 payment flows via the OpenX402 facilitator and need per-call, low-cost voice content transformation at $0.02 per request without subscription overhead.

## Known failure modes

- HTTP 402 returned if no valid EIP-3009 payment token is provided — response includes payment challenge with USDC amount and facilitator info
- Invalid HTTP method returns error (only GET, HEAD, DELETE, POST accepted)
- Missing required 'input' object or 'method' field returns validation error
- OpenX402 facilitator unavailable may cause payment verification failure
- Malformed query parameters or body may result in processing error

## How this service works

Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.

## Output

Returns rewritten or voice-optimized text content derived from the input. Unpaid requests (missing or invalid EIP-3009 payment authorization) return HTTP 402 with payment challenge details specifying the required $0.02 USDC amount and EIP-3009 payment extras for the OpenX402 facilitator.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE",
      "POST"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  },
  "inputSchema": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openclaw-voice-rewrite-api-7b393b4d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from openclawproductions.com](https://www.zero.xyz/host/openclawproductions.com/llms.txt)