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Password Strength X402 MCP Server

Developer ToolsLow Risk8.1MCP RegistryRemote
Free

Server data from the Official MCP Registry

Password strength scoring with entropy, crack time estimation, common password detection. x402.

About

Password strength scoring with entropy, crack time estimation, common password detection. x402.

Remote endpoints: sse: https://password-strength.api.klymax402.com/mcp

Security Report

8.1
Low Risk8.1Low Risk

Valid MCP server (1 strong, 0 medium validity signals). 5 known CVEs in dependencies Imported from the Official MCP Registry. Trust signals: trusted author (146/150 approved).

1 tool verified · Open access · 5 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

file_system

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Check that this permission is expected for this type of plugin.

database

Check that this permission is expected for this type of plugin.

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

{
  "mcpServers": {
    "io-github-br0ski777-password-strength": {
      "url": "https://password-strength.api.klymax402.com/mcp"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

Password Strength Analyzer API

MCP Server x402 License: MIT

Password strength analyzer with entropy calculation and crack time estimation. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "password-strength": {
      "url": "https://password-strength.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://password-strength.api.klymax402.com/api/check" \
  -H "Content-Type: application/json" \
  -d '{"password":"..."}'
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

ToolMethodPathPriceDescription
security_check_passwordPOST/api/check$0.003Check password strength with entropy and crack time

security_check_password

Use this when you need to evaluate password strength or security. Returns a score 0-100, strength rating (weak/fair/strong/excellent), estimated crack time, entropy bits, and improvement suggestions. Checks against top 1000 common passwords. Do NOT use for hash generation — use crypto_generate_hash. Do NOT use for input validation — use data_validate_json.

Parameters

NameTypeRequiredDescription
passwordstringyesThe password to analyze

Example agent prompts

  • "Evaluate password strength or security"

Payment

  • Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
  • Network: Base L2 (eip155:8453)
  • Asset: USDC
  • Facilitator: Coinbase CDP (primary), PayAI (fallback)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

License

MIT

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