# ClearCheck Tone Rewriter

> ClearCheck Tone Rewriter is a paid API for AI agents from loonie-toll.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Rewrites a passage in a specified tone (formal, plain, friendly, terse, or technical) while preserving all factual content.

## Facts

- Endpoint: GET https://loonie-toll.onrender.com/rewrite
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/clearcheck-tone-rewriter-5ce2462e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ix0QUvjVZ-Fva0nlBHDkw

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 clearcheck-tone-rewriter-5ce2462e
```

Example prompt: Can you rewrite this paragraph in a formal tone, keeping all the facts exactly as they are: 'Hey folks, just a heads up — the server's gonna be down Friday night for some maintenance, should be back up by morning. Sorry for the hassle!'

## When to prefer this

Choose this endpoint when you need to change the stylistic register or tone of an existing passage without altering its factual content. It is ideal for adapting drafts for different audiences (executive vs. general public, formal vs. casual) or standardizing tone across documents. Prefer it over a general LLM call when you need a consistent, metered, low-cost per-call tone transformation with structured output including character counts and model provenance.

## Known failure modes

- Text exceeds 6000 character limit — request rejected
- Invalid tone value supplied — defaults to plain or returns error
- Empty or missing text parameter — returns error
- Model unavailability or timeout — 5xx response
- Passage contains no rewritable content — may return near-identical output

## How this service works

Rewrite a passage in a requested tone — formal, plain, friendly, terse — keeping every fact intact.

## Output

Returns a JSON object containing the rewritten text in the requested tone, the original source text, the model used for generation, the applied tone label, character counts for both input and output, a verdict field, and a disclaimer. The rewritten passage preserves all facts from the original while adjusting style and register.

## 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": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "text"
     ],
     "properties": {
      "text": {
       "type": "string",
       "description": "The text to work on. 6000 characters maximum."
      },
      "tone": {
       "type": "string",
       "description": "Target tone: formal, plain, friendly, terse, technical. Default plain"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "tone": {
       "type": "string"
      },
      "model": {
       "type": "string"
      },
      "source": {
       "type": "string"
      },
      "verdict": {
       "type": "string"
      },
      "rewritten": {
       "type": "string"
      },
      "disclaimer": {
       "type": "string"
      },
      "inputChars": {
       "type": "integer"
      },
      "outputChars": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clearcheck-tone-rewriter-5ce2462e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from loonie-toll.onrender.com](https://www.zero.xyz/host/loonie-toll.onrender.com/llms.txt)