Password Strength

Measures password strength with a zxcvbn-style score and optional HIBP breach lookup.

Overview

Measures password strength with a zxcvbn-style score and optional HIBP breach lookup. Returns a 0-100 score and weak/fair/good/strong/excellent bucket, Shannon entropy bits, charset size, character-class breakdown (lower/upper/numbers/symbols), common-pattern detection (sequences, keyboard walks, repeats, dictionary words), and crack-time estimates across throttled/unthrottled/offline-slow/offline-fast attacker models. The optional Have-I-Been-Pwned check uses k-anonymity: only the first 5 chars of the SHA-1 hash leave the worker. Use it as a password strength meter, password checker, password entropy calculator, pwned password check, or password validator.

Endpoint

Method	Endpoint	Price	Description
POST	/v1/marketplace/api/password-strength-258	$0.023	Invoke Password Strength (General) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i -X POST https://api.jarvisclaw.ai/v1/marketplace/api/password-strength-258 \
  -H 'Content-Type: application/json' \
  -d '{}'

# 2. Pay it (the SDK signs and retries for you)
curl -X POST https://api.jarvisclaw.ai/v1/marketplace/api/password-strength-258 \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <signed-payload>' \
  -d '{}'

Open in the marketplace