Input Validation API - Email, URL & Security Rules

Email and URL validation

Use the same endpoint with different rules to check email addresses and URLs. Email checks can also include disposable-domain and DNS-related rules.

Email request example

{
  "input": "test@gmail.com",
  "rules": [
    "REQUIRED",
    "EMAIL",
    "NO_DISPOSABLE_EMAIL",
    "MX_EMAIL"
  ],
  "failFast": false
}

{
  "valid": true,
  "errors": []
}

URL request example

{
  "input": "https://example.com",
  "rules": ["REQUIRED", "URL"],
  "failFast": false
}

EMAIL checks format; NO_DISPOSABLE_EMAIL checks known disposable domains; MX_EMAIL checks whether the domain is configured to receive email. These checks do not prove mailbox ownership.

Input and security validation

Combine required, length, regex and security rules to validate input without changing its value.

Security request example

{
  "input": "<script>alert(1)</script>",
  "rules": ["REQUIRED", "NO_XSS"],
  "failFast": false
}

{
  "valid": false,
  "errors": [
    {
      "rule": "NO_XSS",
      "message": "Potential XSS detected"
    }
  ]
}