Developer API

Transfer objects returned by List transfers, Get transfer, and Create transfer now include imad and omad fields, populated for domestic and international wires when available.

Brex removed the Get limit for user endpoint and the deprecated POST /v2/users/{id}/limit endpoint. Added List and Get cost centers with cost_centers and cost_centers.readonly OAuth scopes, update and delete endpoints for departments, locations, and titles, and expanded List users filtering with cost_center_id and legal_entity_id on user objects.

Travel API removed the deprecated INVITED value from the Trip.Status enum and added a policy field to booking objects showing out-of-policy status and violated rules. Expenses API gained cost_center_id and an expandable cost_center object, and the Transactions API docs now recommend a lookback window of at least one day for listing primary card transactions.

Travel API trip and booking endpoints accept a load_custom_fields query parameter and return custom_fields arrays on trip and booking objects. Card and cash transaction endpoints now document a recommended overlapping lookback window on posted_at_start when polling.

List expenses endpoints now accept compliance_status[] and derived_compliance_status[] filters.

Expenses API: Added booking_id field to expense objects for trip expenses, and added spending_entity and policy as expand options on List Expenses endpoints. Onboarding API: Updated accepted EIN document types to include CP-575 fax sheet.

Onboarding API: Added new endpoint POST /v1/referrals/{id}/process_ein_document for processing delayed EIN documents after upload. Fields API: Added TRAVEL field type to field definitions. Webhooks API: Added ACCOUNTING_RECORD_READY_FOR_EXPORT webhook event…

Expenses API: Reduced maximum limit parameter from 1000 to 100 for the List Expenses endpoints. Updated the API documentation look and feel.

Added support for new API hostnames (api.brex.com); the former hostnames will continue to work for the forseeable future.

Expenses API: Added dashboard_url field to expense objects, providing a direct link to view expenses in the Brex dashboard.

Accounting API (Alpha): Published the Accounting API reference for ERP partners and customers to discover and integrate with accounting data endpoints. Fields API (Beta): Field definition now exposes optional integration_id and new ERP field type to associate ERP…

Cards API: Updated spend controls documentation with improved nullable property definitions. Fields API (alpha): Added official Fields API documentation with comprehensive endpoint specifications for field creation, updates, and retrieval operations. Expenses API:…

Expenses API: Added documentation for new payment_posted_at_start and payment_posted_at_end filters in the List expenses endpoints, allowing filtering by when payments were posted.

Expenses API: Updated documentation with latest field additions including improved custom fields documentation. Published new endpoints and added spending_entity documentation to provide better visibility into expense attribution.

Budgets API: Updated spend limit creation to support legal_entity_id and department_id parameters for attributing expenses to specific entities and departments. Team API: Added new endpoint to get a legal entity by ID (GET /v2/legal_entities/{id}). Updated…

Team API: The Get card number endpoint response now includes the cardholder name (holder_name). Expenses API: The List expenses endpoint request now allows filtering on the updated_at timestamp of expenses.

Payments API: New endpoints introduced to create incoming transfers, list bank connections, manage transfers, and manage vendor information. Budgets API: Introduced new spend limit and budgets concepts with new API endpoints (v2). The old Spend Limits (v1) API is…

Team API: The Get card endpoint response now returns a has_been_transferred boolean. The Create card endpoint now accepts an expense policy ID (policy_id). Expenses API: The Expense object now returns an optional address, payment posted date, and trip ID if relevant…

Webhooks: Updated IP whitelist.

Transactions API: The List cash accounts endpoint response now includes a primary boolean field indicating whether the cash account is the primary cash account for the Brex account. All APIs: Added new header X-Brex-Trace-Id for tracing; previous header…