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Brex APIs

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Browse the recorded Brex APIs and open their documentation.

Onboarding API

Accounting API

Team API (coming soon)

Payments API (coming soon)

Brex API Overview

Transactions API

Expenses API

Webhooks API

Budgets API

OpenAPI specification

SwaggerHub

SwaggerHub Enterprise

Swagger Inspector

Swagger Codegen

Swagger Editor

Swagger UI

OpenAPI Document

OpenAPI Object

openapi

OpenAPI Initiative

ReadyAPI

Automate your workflows with no-code & Brex

Automations

Brex API

Expenses API now compatible with Brex Empower

New budgets API for Brex Empower data

New transactions API capabilities

Webhooks for Brex API

How AI Can Increase Working Capital: Practical Tips and Strategies

10 procurement trends shaping 2025 corporate strategies

4 financial ecommerce trends shaping the future of retail

7 working capital loans for small businesses and startups

Brex is joining forces with Capital One

Building the Brex API

How Brex + Capital One will accelerate how we serve startups

Raising Capital in the New Venture Landscape

Brex and Barclays Investment Bank Sign $100M Debt Capital Raise

Brex Announces API and Zapier Partnership to Automate Payments, Transactions, and More

Brex and Zapier

Swagger

Swagger Enterprise

Swagger Open Source

spec.openapis.org

OpenAPI Description

OpenAPI Description Structure

OpenAPI Description Formats