Step 1: Connect your stack
27+ native integrations plus 9,800+ tools via managed connectors. Mostly one-click OAuth, a few API keys. No webhooks, no Zapier zaps.
Brex AI employee
Viktor works in Brex for you. Ask in Slack or Microsoft Teams.
Viktor is an AI employee that connects to Brex and helps you track employee expenses, corporate cards, and business travel, running 21 Brex actions for you like Get Card, Get User, and List Cards. Ask in plain English from your workspace; Viktor does the work in Brex and reports back. Viktor connects in one click via OAuth.
Works in Slack & Microsoft Teams
What can your AI employee do in Brex?
Viktor connects to your Brex account and completes work in it. He doesn't just answer questions about Brex, he takes the actions on your behalf and delivers the finished result to your workspace.
Unlike workflow builders such as Zapier or Make, there is nothing to configure - no triggers to map, no workflows to maintain. You describe the outcome in plain English, and Viktor picks the right Brex actions, chains them with the other 9,800+ tools he connects to, and asks for approval before anything sensitive runs.
About Brex
Payments, Deposits, Cards
Use Brex from Slack and Microsoft Teams
Message Viktor in a Slack channel, a Microsoft Teams chat or a direct message. He opens Brex, does the work and posts the result in the same thread, so nobody has to switch tabs.
He can also run Brex work on a schedule, like a weekly Brex summary posted to your team's channel. Anything sensitive waits for your approval before it runs.
Viktor is not affiliated with or endorsed by Brex.
You ask in your workspace
Describe what you need in plain English
Viktor picks the actions
Selects from 21 Brex actions, chains them together
Runs in Brex
Helps you track employee expenses, corporate cards, and business travel - your real data.
Reports back
Delivers the finished result to your workspace
Try asking Viktor
What can you ask Viktor to do in Brex?
Messages you'd actually send. Paste one into your workspace, swap in your specifics, and Viktor takes it from there.
“Check Brex for expense reports awaiting my approval and summarize them.”
— you, to @Viktor
“Find receipts missing from this month's Brex report and remind the team.”
— you, to @Viktor
“Watch Brex for a purchase over the policy limit and alert me right away.”
— you, to @Viktor
“Book this trip in Brex within the standard policy and send me the itinerary.”
— you, to @Viktor
How it works
How does Viktor work with Brex?
Maya Patel11:32 AM
@Viktor check this week's Stripe revenue against HubSpot and flag anything off before the board call.
Viktor11:33 AM
On it. Cross-checking Stripe against HubSpot and fixing anything that doesn't line up before your board call.
Step 2: Tell Viktor what you need
Message Viktor like a teammate: "Pull this week's MRR from Stripe." "Triage new Linear bugs." "Pause Meta ads over $40 CPA." Any tool.
Viktor9:12 AM
📊 Revenue check:
$84,210 (+6.4% WoW).
3 deals didn't match HubSpot.
Fixed 2, one needs your call.
$84,210 (+6.4% WoW).
3 deals didn't match HubSpot.
Fixed 2, one needs your call.
revenue_raport.pdf
Step 3: Viktor does the work, you review
Viktor opens the tools, runs the work, and posts back exactly what changed. Sensitive actions wait for your approval. It’s all logged.
Actions
What can Viktor do in Brex?
Ask in plain English from your workspace. Viktor picks the right Brex actions, runs the work, and reports back. No workflows to build.
- Other
Cancel Card
Cancels (terminates) a card permanently. This cannot be undone — use Freeze Card to block a card temporarily instead.
- Card
Create Card
Issues a new virtual card to a Brex user. Physical cards are not supported — Brex requires a mailing address to ship one and this action does not collect it. A vendor card (Limit Type = CARD) carries its own spend limit set here; a corporate card (Limit Type = USER) draws on the cardholder's monthly limit instead, which Set Limit for User controls. Use List Users to find the cardholder. The returned card ID is what Get Card, Freeze Card, Cancel Card, and Update Card Limit take.
- Other
Freeze Card
Freezes (locks) a card so it declines new purchases. Reversible with Unfreeze Card.
- Card
Get Card
Retrieves one card by ID, including its status, last four digits, and — for vendor cards — its spend limit and remaining available balance. Corporate cards return spendcontrols: null because they draw on the cardholder's limit, which Get User Limit reports.
- Other
Get Expense
Retrieves one expense and its receipts. Receipt download links expire 15 minutes after the response, so download rather than store them. Use Search Expenses to find an expense ID.
- Other
Get User Limit
Retrieves a person's monthly spend limit and how much of it is still available. Change it with Set Limit for User.
- Other
Get User
Retrieves one person in the Brex account, including their status, manager, department, location, and title. Use List Users to find a user ID by email address.
- Other
Invite User
Invites a person to the Brex account as an employee, emailing them to finish onboarding. Returns the new Brex user ID, which Create Card, Set Limit for User, and Get User take.
- Other
List Card Accounts
Lists the Brex card accounts, each with its current balance, available balance, account limit, and current statement period. These are account-level limits, not a single card's — use Get Card for that. Results are capped at maxResults (default 100) — check $summary for a truncation notice and raise maxResults if it's truncated.
Works with your stack
Viktor uses Brex together with your other tools
Ask for outcomes that span tools - Viktor pulls from Brex, cross-references the rest of your stack, and delivers one finished result.
Related
More Finance & Payments integrations
Viktor connects to 9,800+ tools and works across them in a single run.
Trusted by 78,000+ teams
The moment Viktor becomes part of the team.
Brex integration FAQ
Yes. Brex is one of the 9,800+ tools Viktor connects to, in one click via OAuth. Once connected, anyone on your team can put Viktor to work in Brex from their workspace - no workflow builder, no code.
Ask Viktor in your workspace to connect Brex, then approve the one-click OAuth prompt. Viktor never sees your password, handles authentication itself, and starts working right away. Setup takes about two minutes, and you can revoke access at any time.
Viktor can run 21 Brex actions, including Get Card, Get User, and List Cards - and chain them with other tools in a single request. In practice that means Viktor helps you track employee expenses, corporate cards, and business travel. If a task spans several actions, Viktor plans the sequence itself and reports back when the work is done.
No. Viktor isn't a workflow builder - there are no triggers to map and nothing to maintain. You ask for the outcome in plain English in your workspace, and Viktor decides which Brex actions to take, runs them, and reports back.
4.9 on G2G2 rating: 4.9 out of 5 stars
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