Password Strength MCP tool

MCP findutils:password_strength

Estimate password strength using character-class entropy. Returns a 0–4 score, a descriptive label, and actionable feedback. NOT a substitute for a full dictionary check (zxcvbn) — this is fast and offline-safe.

Needs an API key. Running a tool needs an API key. Keys are not for sale yet: ask for early access. About API keys

Open the tool Try it

Arguments

application/json

password

string required

The password to evaluate.

Example arguments

Verified

{
  "password": "abc123"
}

claude mcp add findutils --transport http https://mcp.findutils.com/ --header "Authorization: Bearer YOUR_API_KEY"

{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

curl -X POST https://mcp.findutils.com/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "password_strength",
      "arguments": {
        "password": "abc123"
      }
    }
  }'

Also a REST endpoint

The same tool answers plain HTTP at POST /api/tools/password-strength/execute.

REST reference

Rate limit: 120 a minute, per IP
Auth: API key
REST id: password-strength
MCP name: password_strength
Category: Security
Machine-readable: openapi.json · markdown.md

Arguments

Example arguments

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