Password Pattern Validator API

POST https://api.findutils.com/api/tools/password-pattern-validator/execute

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.

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Request body

application/json

password

string required

The password to validate.
min_length

integer optional

Minimum length. Default: 8. Default 8.
require_uppercase

boolean optional

Require at least one uppercase letter. Default: true. Default true.
require_lowercase

boolean optional

Require at least one lowercase letter. Default: true. Default true.
require_number

boolean optional

Require at least one digit. Default: true. Default true.
require_special

boolean optional

Require at least one special character. Default: true. Default true.

Example arguments

Verified

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

curl -X POST https://api.findutils.com/api/tools/password-pattern-validator/execute \
  -H "Content-Type: application/json" \
  -d '{
    "password": "Xk9#mQ2$vL7@pR4!"
  }'

const response = await fetch('https://api.findutils.com/api/tools/password-pattern-validator/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"password":"Xk9#mQ2$vL7@pR4!"}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/password-pattern-validator/execute",
    json={"password":"Xk9#mQ2$vL7@pR4!"},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/password-pattern-validator/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => '{"password":"Xk9#mQ2$vL7@pR4!"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call password_pattern_validator from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: None
REST id: password-pattern-validator
MCP name: password_pattern_validator
Category: Security
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

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