/v1/validate/ublUBL 2.1 with automatic CIUS detection (Peppol BIS 3.0, NLCIUS, PINT).
| Name | Type | Required | Description |
|---|---|---|---|
| X-API-Key | string | yes | Your workspace secret. |
| Name | Type | Required | Description |
|---|---|---|---|
| file | binary | yes | UBL Invoice or CreditNote. |
Errors use application/problem+json with type, title, status, detail, errorCode, and optional invalid-params for Schematron field failures.