Password Entropy calculates the randomness strength of passwords in bits using character set analysis and length. Access via MCP in Cursor or Windsurf, or GET /v1/crypto/entropy with your password as a parameter. Returns entropy score, character set details, and strength assessment. Higher entropy means stronger resistance to brute-force attacks.
curl "https://tinyfn.io/v1/crypto/entropy" \
-H "X-API-Key: YOUR_API_KEY"const response = await fetch('https://tinyfn.io/v1/crypto/entropy', {
headers: { 'X-API-Key': 'YOUR_API_KEY' }
});
const data = await response.json();
console.log(data);import requests
response = requests.get('https://tinyfn.io/v1/crypto/entropy',
headers={'X-API-Key': 'YOUR_API_KEY'})
data = response.json()
print(data)Connect your AI agent (Claude, Cursor, Windsurf, etc.) to TinyFn's cryptography tools:
{
"mcpServers": {
"tinyfn-crypto": {
"url": "https://tinyfn.io/mcp/crypto",
"headers": {
"X-API-Key": "YOUR_API_KEY"
}
}
}
}Entropy = log2(character_set_size^password_length). The tool analyzes your password to determine the character set (lowercase, uppercase, digits, symbols) then calculates total possible combinations.
Generally 50+ bits is acceptable, 60+ bits is good, 70+ bits is strong. A 12-character password with mixed case, numbers, and symbols typically achieves 70-80 bits.
Yes, the entropy tool works in Cursor, Claude Code, Windsurf, and other MCP clients. Perfect for validating password strength during security audits or user registration flows.
No, password analysis happens server-side but passwords aren't stored. However, avoid checking real production passwords - use representative samples instead.
This tool provides precise entropy calculations in bits rather than vague 'weak/strong' labels. It's deterministic and mathematically accurate for security assessments.
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