# SiteCheck Web Intel – HIBP Domain Breach Lookup

> SiteCheck Web Intel – HIBP Domain Breach Lookup is a paid API for AI agents from api.webintel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-25).

Returns all data breaches recorded by HaveIBeenPwned for a given domain, including breach name, date, affected account count, exposed data types, and verification status.

## Facts

- Endpoint: GET https://api.webintel-api.workers.dev/api/security/hibp-breach-check?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-web-intel-hibp-domain-breach-lookup-2499841d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JX9cweg_7-z-Knoqt84_B

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 sitecheck-web-intel-hibp-domain-breach-lookup-2499841d
```

Example prompt: Can you pull up all the data breaches HaveIBeenPwned has on record for adobe.com — I want to see the breach names, dates, how many accounts were hit, and what types of data were exposed?

## When to prefer this

Choose this endpoint when you need a domain-level breach catalogue — i.e. all breaches associated with a company or website — rather than checking whether a specific individual email address has been compromised. This is the public HIBP breach data, so no paid API key is required. Prefer this over a raw HIBP API call when you need a pay-per-call, no-credential approach accessible to AI agents via x402 micropayment.

## Known failure modes

- Domain not found in HIBP database — returns empty list or 404-style response
- Invalid domain format — may return validation error
- HIBP upstream API unavailable — proxy returns 5xx error
- Rate limiting or payment failure — returns 402 or 429 error
- Domain with no recorded breaches returns empty results, which may be misread as an error

## How this service works

Lists the data breaches HaveIBeenPwned has recorded for a domain (breach name, breach date, accounts affected, data types exposed, verified flag). It is the public breach catalogue, not a check of individual email addresses (that needs a paid key and is not offered here).

## Output

A list of breach objects for the queried domain, each containing: breach name, breach date, number of affected accounts, data types exposed (e.g. email addresses, passwords, phone numbers), and a boolean verified flag indicating whether HIBP has confirmed the breach as legitimate.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Domain name such as adobe.com (required)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-web-intel-hibp-domain-breach-lookup-2499841d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.webintel-api.workers.dev](https://www.zero.xyz/host/api.webintel-api.workers.dev/llms.txt)