MCP MeasureMCP Measure

index observed

JSON to TOON

Convert JSON to TOON (about 43% fewer LLM tokens) and TOON back to JSON. Free, no auth.

Should I use this

Quality & Safety

A
Description quality
85%
Schema completeness
100%
Naming quality
80%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Findings (1)

  • LOWTool 'toon_to_json' description lacks action verbin toon_to_json

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~197Tokens (tool definitions)
~536 BTypical response size
Minimal attention impact (0.15% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "json2toon": {
      "url": "https://json2toon.co/api/mcp"
    }
  }
}

Remote endpoints

https://json2toon.co/api/mcpstreamable-http

What it can do

Tool inventory

Tools (2)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢json_to_toon(json, delimiter)

Convert JSON to TOON (Token-Oriented Object Notation), a compact format that uses about 43% fewer LLM tokens than JSON on average. Best for uniform arrays of objects.

Input Schema

{
  "type": "object",
  "properties": {
    "json": {
      "type": "string",
      "description": "JSON document to convert (as a string)"
    },
    "delimiter": {
      "type": "string",
      "enum": [
        "comma",
        "tab",
        "pipe"
      ],
      "description": "Array delimiter (default comma)"
    }
  },
  "required": [
    "json"
  ]
}
🟢toon_to_json(toon)

Decode a TOON document back to pretty-printed JSON.

Input Schema

{
  "type": "object",
  "properties": {
    "toon": {
      "type": "string",
      "description": "TOON document to decode"
    }
  },
  "required": [
    "toon"
  ]
}

Community

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Evidence

Recent observations

verifiedversion not recorded2 tools