This page documents the canonical HTTP contract for this endpoint.
Requires an authenticated user session with user_admin; developer API keys are blocked. Unknown JSON fields are ignored. This is a read-only lookup and does not invoke a paid provider.
Body parameters
emailsrequiredarray<string>
Strings to check (maximum 1,000). Values are trimmed and lowercased before exact email and domain matching; the route does not validate each value as an email address.
| Name | Type | Description |
|---|---|---|
| emailsrequired | array<string> | Strings to check (maximum 1,000). Values are trimmed and lowercased before exact email and domain matching; the route does not validate each value as an email address. |
Errors
| Status | Meaning |
|---|---|
| 400 | Too many emails (max 1000). |
| 401 | Missing or invalid user session. |
| 403 | Developer API keys are blocked; an authenticated user_admin session is required. |
| 403 | Authenticated user lacks user_admin permission. |
| 422 | Invalid or missing emails array. |
