ShieldAPI Email Breach Check

x402

ShieldAPI Email Breach Check is a paid API for AI agents from shield.vainplex.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15, last successful call 2026-06-04).

Checks an email address against security intelligence databases to determine if it has appeared in known data breaches

Price / call$0.005

Seller volume →—

Success100%

StatusUnknown

How this service works

ShieldAPI - x402 security preflight before agents trust an identity, sender, or email counterparty

Output

Returns breach intelligence for the queried email address, including a list of breaches the email appeared in, types of data exposed (passwords, personal info, etc.), breach source names, and overall breach count. Response may be large given the security intelligence database behind it.

Example use cases

Example prompt

“Can you check if the email address john.doe@company.com has ever shown up in any known data breaches or security leaks?”

Technical details

Endpoint

GEThttps://shield.vainplex.dev/api/cdp/check/email

When to prefer

Use this endpoint when you need to check a single specific email address for known data breach exposure. Prefer this over the full security scan endpoint when you only need email breach data and want to minimize cost. This is ideal for validating user-submitted email addresses during onboarding, security audits, or threat intelligence workflows where email compromise history is relevant.

Side effects

Missing or malformed email parameter returns 400 error
Invalid email format may return an error or empty result
Payment failure via x402 protocol returns 402 Payment Required
Rate limiting may occur under high query volume
Email not found in any breach returns empty or zero-breach response
Downstream intelligence database unavailability causes 5xx errors

Input

{
  "input": {
    "type": "http",
    "method": "GET",
    "queryParams": {
      "email": "test@example.com"
    }
  }
}

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

{
  "_truncated": true,
  "_originalSize": 197017
}

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How this service works

ShieldAPI - x402 security preflight before agents trust an identity, sender, or email counterparty

Output

Technical details

Endpoint

GEThttps://shield.vainplex.dev/api/cdp/check/email

When to prefer

Side effects

Missing or malformed email parameter returns 400 error
Invalid email format may return an error or empty result
Payment failure via x402 protocol returns 402 Payment Required
Rate limiting may occur under high query volume
Email not found in any breach returns empty or zero-breach response
Downstream intelligence database unavailability causes 5xx errors

Input

{
  "input": {
    "type": "http",
    "method": "GET",
    "queryParams": {
      "email": "test@example.com"
    }
  }
}

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

{
  "_truncated": true,
  "_originalSize": 197017
}