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Connect Brex to Slack
Automate Brex and Slack with AI
Large or unusual Brex charges deserve a Slack heads up before month end close surprises anyone. Your Operator agent on OpenClaw monitors Brex for transactions above the threshold or merchant types you name, posts details to the finance channel in Slack, and can answer a Slack thread with current spend by category from Brex. Ask what hit the card yesterday and it reads Brex and drops the summary in Slack.
It reaches both apps directly or through connectors like Composio MCP and Pipedream MCP, which handle the sign in and token refresh, so there is no Zap to build and no API keys to paste.
What your agent can do with Brex and Slack
What your agent does in Brex
Add Webhook Group Members
Add webhook subscription members to a webhook group. This action associates one or more webhook subscriptions with an existing webhook group, allowing those subscriptions to receive events targeted at the group. Note: Webhook groups are...
Archive Budget
Archive a budget to mark it as inactive and prevent future expenses. Archives the specified budget, making it unusable for new transactions and removing it from active budget lists in the UI. This action is permanent and cannot be undone.
Archive Spend Limit
Archive a spend limit in Brex. Archives an existing spend limit to remove it from active use, making it unusable for future expenses and hiding it from the UI. Once archived, the spend limit cannot be used to authorize new transactions.
Create Budget
Create a new budget for departments or projects.
Create Spend Limit (Budget V1)
Tool to create a new Spend Limit (Budget) in Brex. Use when you need to set up spending controls with specific limits, visibility settings, and period types.
Create Card
Create a new card and assign it to a user.
What your agent does in Slack
Add call participants
Registers new participants added to a Slack call.
Add emoji
Adds a custom emoji to a Slack workspace given a unique name and an image URL; subject to workspace emoji limits.
Add an emoji alias
Adds an alias for an existing custom emoji in a Slack Enterprise Grid organization.
Add Enterprise user to workspace
Adds an Enterprise user to a workspace. Use when you need to assign an existing Enterprise Grid user to a specific workspace with optional guest restrictions.
Add reaction to message
Adds a specified emoji reaction to an existing message in a Slack channel, identified by its timestamp; does not remove or retrieve reactions.
Add a remote file
Adds a reference to an external file (e.g., Google Drive, Dropbox) to Slack for discovery and sharing, requiring a unique `external_id` and an `external_url` accessible by Slack.
How it works
Tell the agent what you want to happen between Brex and Slack, for example to watch one and act in the other, or to keep the two in step. It reads what it needs from Brex, works out what to do, and runs the matching action in Slack without you mapping a single field.
You can have it run once, on a schedule, or whenever something changes. Ask it for a status any time and it reads the latest from both apps back to you in the same chat.
Common questions about Brex and Slack
- How do I connect Brex and Slack to Operator?
- You authorize Brex and Slack once each from your Operator dashboard. Operator holds both connections and refreshes the access tokens for you, so your agent keeps working across them without you signing in again.
- What can my agent do across Brex and Slack?
- Tell it the job and it moves between Brex and Slack as one task, choosing which actions to run on each side. There is nothing to map and no trigger to configure; you give instructions the way you would to a person.
- Can my agent keep Brex and Slack in sync?
- Yes. It can watch Brex and act in Slack, or keep both in step, reading from one and running the matching update in the other. This runs on demand when you ask or on a schedule you set.
- Do I need to build a workflow or write code?
- No. There is no workflow to build, no fields to map, and no API keys to paste. Operator manages both connections, and you give the agent instructions in plain language.
Brex and Slack integrations
Put your agent on Brex and Slack
Sign in, connect both apps, and hand your agent the work. The same setup reaches every app in the catalog. Your first week is free.
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