API Updates — April 30, 2026

Card expiration in Vault API response — GET /developer/v1/vault/cards/{card_id} now returns an expiration field with the card's expiration date in MMYY format, aligning the GET response with the existing POST response. View endpoint

Update purchase order memo — You can now set, update, or clear the memo field when calling PATCH /developer/v1/purchase-orders/{purchase_order_id}. View endpoint

Spend program workflow nodes simplified — The kind field has been removed from the workflow nodes response on GET /developer/v1/spend-programs/{spend_program_id}/workflow-nodes. This field was never populated in actual responses; the schema now matches the real response shape. View endpoint

New audit log event types — Added several new event_type values for audit log filtering: Account closed, Account renamed, Bank letter downloaded, Investment Account closed, Investment Account opened, Vendor hold released, Vendor placed on hold, and WBX request archived. View endpoint

New audit log resource types — The resource_type filter now includes Investment account and Managed portfolio transfer (replacing the previous Brokerage account value). View endpoint

New vendor document categories — Added ADDENDUM_OR_RIDER, AMENDMENT, CONTRACT_OTHER, ENGAGEMENT_LETTER, SECURITY_EXHIBIT, and SLA to the document_category enum for vendor agreement document uploads. View endpoint