.DkNUKaKx_ZLAT4m.webp?dpl=dpl_9Hx2VMmiEy3kxDNKf1opN6MSWyX6){kind=small}
Connectors / Finance · HTTP Connector
Automate Brex with Tray.ai
Create a card, upload a receipt and create a vendor in Brex, and start a workflow when Brex sends “Expense payment updated”.
Thanks — someone from our team will be in touch soon.
What can you do with Brex on Tray.ai?
Brex is a spend management platform that combines corporate cards, expense tracking, bill pay and budgets for finance teams. Tray.ai connects to Brex through the HTTP Connector, so your workflows can call the Brex API alongside the rest of your stack.
- Connects through
- HTTP Connector
- Authentication
- A bearer token
- Base URL
- https://api.brex.com
What the Brex API covers
6 resources and 24 documented actions, each one a call the HTTP Connector can make from a Tray.ai workflow.
Users
- List users
- Get a user
- Invite a user
- Update a user
Cards
- List cards
- Create a card
- Update a card
- Lock a card
- Terminate a card
Expenses
- List expenses
- Get an expense
- Update an expense
- Upload a receipt
Vendors
- List vendors
- Create a vendor
- Update a vendor
- Delete a vendor
Transfers
- List transfers
- Get a transfer
- Create a transfer
Departments
- List departments
- Create a department
- Update a department
- Delete a department
Events Brex can send to a Tray.ai webhook trigger
- Expense payment updated
- Transfer processed
- Transfer failed
- User updated
- Accounting record ready for export
Checked against Brex's own documentation on 2026-10-22
How Tray.ai makes this work
Brex plugs into the whole Tray.ai platform
Intelligent Integration
Integrate and automate across 700+ connectors with visual workflows, error handling, and observability.
Learn more →Agent Builder
Build AI agents that read, write, and take action in Brex — with guardrails, audit, and human-in-the-loop.
Learn more →Agent Gateway for MCP
Expose Brex actions as governed MCP tools — observable, rate-limited, authenticated.
Learn more →Guides that use Brex
Step by step builds with copy-paste prompts for your coding assistant, and what it takes to run each one in production.
How to build
IntegrationExpense and card feed sync
Match card transactions to receipts, code from the merchant instead of the claimant, and chase the missing ones before month end.
How to build
AutomationShadow AI discovery
Find the AI tools nobody registered, from expenses, SSO and DNS, then route to a path rather than a ban.
How to build
AutomationBank reconciliation automation
Match on rules that learn, keep the unmatched visible and ageing, and never write a plug.
How to build
AutomationFinancial close automation
Model the dependencies instead of the checklist, pull the data before anybody asks, and show the critical path instead of a percentage.
More finance apps on Tray.ai
Dedicated connectors and other apps Tray.ai reaches in the same category. See every finance connector →
Frequently asked questions
What can a Tray.ai workflow do in Brex?
+
The Brex API documents 24 actions across 6 resources (Users, Cards, Expenses, Vendors, Transfers, Departments). For example: List users; List cards; List expenses. A workflow can make any documented call through the HTTP Connector.
How does Tray.ai authenticate with Brex?
+
The Brex API uses a bearer token. You save it once as a Tray.ai authentication, and the HTTP Connector adds it to every request.
Which Brex events can start a Tray.ai workflow?
+
Brex sends 5 events to a webhook URL, for example: Expense payment updated; Transfer processed; Transfer failed; User updated; Accounting record ready for export. A Tray.ai webhook trigger receives them and starts a workflow.
See Brex working against your stack.
We'll walk through a tailored demo with your systems plugged in.
Thanks — someone from our team will be in touch soon.