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Saylor Innovations Password Breach Check by SHA-1
x402
Saylor Innovations Password Breach Check by SHA-1 is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-28).
Checks whether a password appears in known data breaches using its SHA-1 hash prefix via the Have I Been Pwned k-anonymity range API, returning breach status and exposure count.
Price / call$0.001
Success—
StatusUnknown
How this service works
Password Breach Check by SHA-1 (Have I Been Pwned). Check whether a password appears in known data breaches by its SHA-1 hash (the password itself is never sent), with how many times it has been seen. Have I Been Pwned k-anonymity range API.
Output
Returns a JSON object with a 'pwned' boolean indicating whether the password hash has appeared in known breach datasets, and a 'times_seen' number showing how many times it has been observed across all breaches. No raw password data is ever transmitted.
Example use cases
Password safety check at signup
“Before I let a user register with this password, check if it's been seen in any data breaches — hash it to SHA-1 and run it through the breach checker so we never transmit the raw password.”
Security audit of stored credentials
“I have a list of hashed passwords from our database — can you check each SHA-1 hash against the breach API and flag any that have been exposed, along with how many times they've been seen?”
Personal password hygiene check
“I'm updating my accounts — can you check if 'Fluffy$Cat99' has ever appeared in a known data breach by hashing it to SHA-1 and checking the HIBP breach database?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/breach/password?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a privacy-preserving breach check that never exposes the raw password — it uses the k-anonymity model so only a hash prefix is sent to the upstream HIBP service. Prefer this over full-password submission approaches or manual HIBP API integration when you need a simple, pay-per-call microservice with no API key management.
Side effects
- Invalid or malformed SHA-1 hash (not 40 hex characters) returns an error
- Network timeout or upstream HIBP service unavailability
- Missing 'sha1' query parameter causes bad request response
- Hash provided is not lowercase/uppercase normalized as expected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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