Openclaw Json Toolkit

Validate, format, diff, and generate schemas for JSON data. MCP-compatible API with pay-per-use pricing.

Features

• MCP-compatible: Works as a Model Context Protocol server in standby mode
• Direct execution: Run tools directly from the Apify Store UI
• Pay-per-event: Only pay $0.01 per tool execution
• Pro API key support: Bring your OpenClaw Pro key for higher backend rate limits

Available Tools

validate_json

Validate a JSON string and report syntax errors with line/column positions.

Parameters:

• json_string (string, required): The JSON string to validate

format_json

Pretty-print or minify a JSON string with configurable indentation.

Parameters:

• json_string (string, required): The JSON string to format
• indent (number, optional): Indentation spaces (0 = minify)

json_diff

Compare two JSON objects and show the differences.

Parameters:

• json_a (string, required): First JSON string
• json_b (string, required): Second JSON string

generate_schema

Generate a JSON Schema from a sample JSON object.

Parameters:

• json_string (string, required): A sample JSON object to derive schema from

Usage

As an Apify Actor (direct execution)

Run this Actor from the Apify Console or API:

{
    "tool": "validate_json",
    "toolInput": {
        "json_string": ""
},
    "apiKey": "your-pro-key-optional"
}

As an MCP Server (standby mode)

Connect to this Actor's MCP endpoint from any MCP client:

https://yagami8095--openclaw-json-toolkit.apify.actor/mcp

Configure in Claude Desktop (claude_desktop_config.json):

{
    "mcpServers": {
        "openclaw-json-toolkit": {
            "command": "npx",
            "args": ["-y", "mcp-remote", "https://yagami8095--openclaw-json-toolkit.apify.actor/mcp"],
            "env": {
                "APIFY_TOKEN": "your_apify_token"
            }
        }
    }
}

Via Apify API

curl -X POST "https://api.apify.com/v2/acts/yagami8095~openclaw-json-toolkit/runs" \
    -H "Authorization: Bearer YOUR_APIFY_TOKEN" \
    -H "Content-Type: application/json" \
    -d '{"tool": "validate_json", "toolInput": {}}'

Pricing

Tier	Cost	Details
Free backend	$0.01/tool call (Apify)	Limited backend rate (see worker limits)
Pro backend	$0.01/tool call (Apify) + $9 one-time Pro key	1000 calls/day backend limit

Backend

This Actor proxies requests to the OpenClaw json-toolkit-mcp Cloudflare Worker at https://json-toolkit-mcp.yagami8095.workers.dev.

Links

• OpenClaw MCP Servers on GitHub
• Get a Pro API Key
• OpenClaw on Smithery

License

MIT