Yaml Validator

Validation REST API MCP

Validate YAML and return either the re-formatted document or the parse error with its line and column. Valid input is re-emitted with the chosen indentation, optionally with keys sorted alphabetically at every level.

This page documents the MCP tool findutils:yaml_validator. See the REST reference →

Use in the browser View as Markdown

Call it over MCP

Tool name findutils:yaml_validator · no API keys · 120 requests/min per IP

Claude Code

claude mcp add findutils --transport http https://mcp.findutils.com/

Claude Desktop — claude_desktop_config.json

{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/"
    }
  }
}

Raw JSON-RPC (any MCP client) — verified example

curl -X POST https://mcp.findutils.com/ \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "yaml_validator",
      "arguments": {
        "yaml": "name: x\ntags:\n  - a\n  - b"
      }
    }
  }'

Input schema

Argument	Type	Required	Description
yaml	string	yes	The YAML text to validate and format.
indent	integer	no	Indentation width for the formatted output (1-8). Default: 2. Default: 2.
sort_keys	boolean	no	Sort mapping keys alphabetically at every level. Default: false. Default: false.

Example arguments (verified)

{
  "yaml": "name: x\ntags:\n  - a\n  - b"
}

Also a REST endpoint

The same tool answers plain HTTP at POST /api/tools/yaml-validator/execute — no key, 60 requests/min.

Open the REST reference for Yaml Validator →

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