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Password Strength & Breach Inspector
x402
Password Strength & Breach Inspector is a paid API for AI agents from api.aventtech.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-13).
Analyzes a password for character classes, entropy bits, strength verdict, and checks it against Have I Been Pwned breach data using k-anonymity (only a hash prefix is sent, never the raw password).
Price / call$0.02
Success—
StatusUnknown
How this service works
Password strength and breach inspection: character classes, entropy bits, verdict, and Have-I-Been-Pwned breach count via k-anonymity (only a truncated hash prefix leaves the server; the password is never stored or logged).
Output
Returns a breakdown of the password's character classes (lowercase, uppercase, digits, symbols), entropy in bits, an overall strength verdict (e.g. weak/moderate/strong), and the number of times the password has appeared in known breach datasets — retrieved safely using k-anonymity so only a truncated SHA-1 hash prefix leaves the client.
Example use cases
Pre-registration password policy check
“Before I allow this user to set their password 'BlueSky#99', can you inspect it for strength, entropy, and whether it's appeared in any known breach databases?”
Security audit of legacy credentials
“I need to assess how secure the password 'dragon123' is — give me the character class breakdown, entropy in bits, a strength verdict, and how many times it's been found in breach datasets.”
User education on weak passwords
“Run an inspection on 'password' so I can show my users exactly why it's a bad choice — I want the entropy score, character classes, verdict, and how many breaches it's been exposed in.”
Technical details
Endpoint
GEThttps://api.aventtech.com/inspect/password?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a combined password strength analysis AND breach exposure check in a single call, with privacy guaranteed via k-anonymity (the raw password is never transmitted to third parties). Prefer this over manual entropy calculations or separate HIBP queries when you need a structured verdict with entropy bits and character class detail in one response.
Side effects
- Password exceeds 200 character limit — request rejected
- Empty or missing password parameter — validation error returned
- Have I Been Pwned API unavailable — breach count may be absent or endpoint returns partial results
- Network timeout contacting HIBP k-anonymity range endpoint
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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