# MoneyTools Password Strength Estimator

> MoneyTools Password Strength Estimator is a paid API for AI agents from tools.moneytools.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-05).

Analyzes a password's strength using entropy, common-password checks, pattern detection, and crack-time estimates with actionable feedback

## Facts

- Endpoint: POST https://tools.moneytools.dev/v1/password-strength?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-05
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/moneytools-password-strength-estimator-8ff8ded0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jsxcZxGHGM0lbb-zFHsrx

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability moneytools-password-strength-estimator-8ff8ded0 -d '<json body>'
```

Example prompt: Can you check how strong the password 'Tr0ub4dor&3' is — tell me its entropy, estimated crack time, and any weak patterns it has?

## When to prefer this

Choose this endpoint when you need a detailed, multi-dimensional password strength analysis that goes beyond simple length or complexity rules — specifically when you want entropy scores, crack-time estimates, pattern detection (sequences, years, common substitutions), and feedback suggestions in a single call. Prefer it over client-side zxcvbn-style libraries when you need a server-side audit trail-free check with consistent scoring logic, or when building an agent workflow that must evaluate password quality programmatically without storing the credential.

## Known failure modes

- Missing or empty password field returns a validation error
- Password exceeding maximum length may be rejected
- Free tier exhausted (10/day) returns HTTP 402 requiring x402 payment or API key credits
- Network timeout on the endpoint
- Malformed JSON body returns a parse error

## How this service works

Password strength estimate: Entropy, common-password and pattern checks (sequences, years, Word123!), crack-time estimates and feedback. Never stored or logged. Free tier 10/day; then $0.001 via x402 (HTTP 402 + PAYMENT-REQUIRED) or X-API-Key credits. Not charged on failure. $0.001 USDC per call via x402 on Base. Run by MoneyTools.

## Output

Returns a structured analysis including entropy bits, estimated crack time under various attack scenarios, whether the password appears in common-password lists, detected weak patterns (sequential characters, keyboard walks, year suffixes, Word123! structures), an overall strength rating, and human-readable improvement feedback. Passwords are never stored or logged.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "password": {
   "type": "string",
   "examples": [
    "Tr0ub4dor&3"
   ],
   "description": "password to rate (use a similar pattern, not your real one)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/moneytools-password-strength-estimator-8ff8ded0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tools.moneytools.dev](https://www.zero.xyz/host/tools.moneytools.dev/llms.txt)