2s Password Exposure Check (Have I Been Pwned via k-anonymity)

x402

2s Password Exposure Check (Have I Been Pwned via k-anonymity) is a paid API for AI agents from 2s.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-12).

Checks whether a given password appears in known breach datasets using k-anonymous SHA-1 prefix lookup, returning breach count and status.

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers). USDC via x402, no signup, no API keys, and upto billing: pay actual usage, not the quote.

Output

Returns a JSON object with an ok flag, an items array (each with breached boolean, breach count, the SHA-1 prefix used, input mode, and a descriptive note), total count of results, and source metadata including the provider (Have I Been Pwned), license, and API URL.

Example use cases

Example prompt

“Can you check whether the password 'Sunshine2020!' has ever shown up in a data breach, and tell me how many times it's been seen in leaked databases?”

Technical details

Endpoint

POSThttps://2s.io/api/security/password-exposure?utm_source=zero.xyz

When to prefer

Use this endpoint when you need to check a specific password or its SHA-1 hash against known breach datasets with k-anonymity (only a 5-char prefix is transmitted, preserving privacy). Prefer the sha1 input mode for zero-knowledge checks where the plaintext should never leave the client. Ideal for security audits, user onboarding validation, or credential hygiene checks.

Side effects

Missing both password and sha1 fields — returns validation error
Invalid SHA-1 hash format (not 40 hex chars) — returns error
Network/upstream HIBP API unavailable — may return error or timeout
Payment failure via x402 — request not processed

Input

{
  "password": "TestPassword123!"
}

Schema · Request body

Field	Type	Description
sha1	string	Alternatively, the 40-hex SHA-1 of the password (client-side hashing = zero-knowledge).
password	string	Password to check (hashed server-side; only a 5-char SHA-1 prefix leaves).

Output

{
  "data": {
    "ok": true,
    "items": [
      {
        "note": "This password appears in breach corpora 3,353 time(s) — do not use it.",
        "count": 3353,
        "source": {
          "url": "https://haveibeenpwned.com/API/v3#PwnedPasswords",
          "license": "Pwned Passwords data is freely usable; queries are k-anonymous (only a 5-char SHA-1 prefix is sent).",
          "provider": "Have I Been Pwned — Pwned Passwords (k-anonymity range API)"
        },
        "breached": true,
        "inputMode": "password",
        "sha1Prefix": "382CA"
      }
    ],
    "total": 1,
    "source": {
      "url": "https://haveibeenpwned.com/API/v3#PwnedPasswords",
      "license": "Pwned Passwords data is freely usable; queries are k-anonymous (only a 5-char SHA-1 prefix is sent).",
      "provider": "Have I Been Pwned — Pwned Passwords (k-anonymity range API)"
    }
  },
  "meta": {
    "cost": {
      "usd": 0.001,
      "tier": 0
    },
    "caller": "x402",
    "version": null,
    "endpoint": "security.password-exposure",
    "settlement": {
      "txHash": "0x4e20c8e016b5b784d3a4ef67155d6df52ee82d59d29596ce436566cd6fef4717",
      "network": "eip155:8453",
      "success": true
    }
  }
}

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