Password Pattern Validator

Security REST API MCP

Validate a password against configurable rules and return each check (pass/fail with severity), a 0-100 score, and a strength label. Required rules: minimum length plus optional uppercase, lowercase, digit, and special-character requirements. Recommended rules: no common passwords, no keyboard patterns, no 3+ repeated characters, no sequential runs. Also reports an entropy estimate.

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

Use in the browser View as Markdown

Call it over MCP

Tool name findutils:password_pattern_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": "password_pattern_validator",
      "arguments": {
        "password": "Xk9#mQ2$vL7@pR4!"
      }
    }
  }'

Input schema

Argument	Type	Required	Description
password	string	yes	The password to validate.
min_length	integer	no	Minimum length. Default: 8. Default: 8.
require_uppercase	boolean	no	Require at least one uppercase letter. Default: true. Default: true.
require_lowercase	boolean	no	Require at least one lowercase letter. Default: true. Default: true.
require_number	boolean	no	Require at least one digit. Default: true. Default: true.
require_special	boolean	no	Require at least one special character. Default: true. Default: true.

Example arguments (verified)

{
  "password": "Xk9#mQ2$vL7@pR4!"
}

Also a REST endpoint

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

Open the REST reference for Password Pattern Validator →

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