---
title: "Connect MailUp to Brex - APIANT.ai"
description: "When \"New Email Message in List\" fires in MailUp, your agent runs \"Update a Budget - “Brex Empower” Customers Only\" in Brex."
canonical: "https://apiant.ai/connect/mailup-to-brex"
---

# Connect MailUp to Brex

When **New Email Message in List** fires in [MailUp](https://apiant.ai/connections/mailup), your agent runs **Update a Budget - “Brex Empower” Customers Only** in [Brex](https://apiant.ai/connections/brex). Describe the whole flow and it is built, tested on every scenario and kept running.

MailUp **4** triggers MailUp **25** actions Brex **27** actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

## What do you want MailUp and Brex to do together?

Give your AI client this address.

`https://mcp.apiant.ai`

One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

### Set it up in your client

### Claude Code

Run this in the directory you want to work in.

`claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai`

Start Claude Code there, approve the server, and sign in in the browser page it opens.

[Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code)

### Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

Example flows

## What MailUp can start in Brex

- When **New Email Message in List** in MailUp then **Update a Budget - “Brex Empower” Customers Only** in Brex
- When **New Group** in MailUp then **Create User** in Brex

Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.

Everything your agent can do with MailUp and Brex

## Triggers and actions 4 triggers · 52 actions

- Trigger

**New Email Message in List**

A new email message was created in the list. MailUp is a multi-list environment and messages are list-specific.

- Trigger

**New Group**

New group added to the specified list. MailUp is a multi-list environment and groups are list-specific.

- Trigger

**New Recipient Subscribed**

There is a new subscriber in the specified list. MailUp is a multi-list environment.

- Trigger

**New Recipient Unsubscribed**

A recipient unsubscribed from the specified list. MailUp is a multi-list environment.

- Action

**Add list**

Create a new list. POST Console/List

- Action

**Add Recipient to Group**

Add recipient to the specified group on the list.

- Action

**Add Recipient to List**

Adds a new recipient to the specified list as a subscriber.

- Action

**Create New Email Message**

Create a new email message on the specified list.

- Action

**Create New Group**

Add a new group to the specified list. MailUp is a multi-list environment.

- Action

**Delete email message**

Delete an email message. DELETE Console/List/{id_List}/Email/{id_Message}

- Action

**Delete group**

Delete a group in a list. DELETE Console/List/{id_List}/Group/{id_Group}

- Action

**Delete list**

Delete a list. DELETE Console/List/{id_List}

- Action

**Get email message**

Retrieve email message details. GET Console/List/{id_List}/Email/{id_Message}

- Action

**Get list**

Retrieve list details by id. GET Console/List/{id_List}

- Action

**List email messages**

Retrieve email messages of a list. GET Console/List/{id_List}/Emails

- Action

**List Email Message Sendings**

lists the sendings (send tasks, with recipients count and status) created for an email message.

- Action

**List Group Recipients**

Lists the recipients in a MailUp group (GET Console/Group/{id_group}/Recipients), with id, email, name and personal data fields.

- Action

**List groups**

Retrieve groups of a list. GET Console/List/{id_List}/Groups

- Action

**List lists**

Retrieve the console's lists. GET Console/List on services.mailup.com/API/v1.1/Rest/ConsoleService.svc

- Action

**List subscribed recipients**

Retrieve subscribed recipients of a list. GET Console/List/{id_List}/Recipients/Subscribed

- Action

**Remove recipient from group**

Unsubscribe a recipient from a group. DELETE Console/Group/{id_Group}/Unsubscribe/{id_Recipient}

- Action

**Remove Recipient From List**

This method unsubscribe the given recipient from the specified list.

- Action

**Send Message to Email Address**

Sends the specified message (previously created in MailUp in the specified List) to the email address specified.

- Action

**Send Message to Group**

Send a message to a predefined group in the specified list.

- Action

**Send message to list**

Send an email message to all recipients of a list. POST Console/List/{id_List}/Email/{id_Message}/Send

- Action

**Unsubscribe recipient from list**

Unsubscribe a recipient from a list. DELETE Console/List/{id_List}/Unsubscribe/{id_Recipient}

- Action

**Update email message**

Modify an email message. PUT Console/List/{id_List}/Email/{id_Message}

- Action

**Update group**

Modify a group in a list. PUT Console/List/{id_List}/Group/{id_Group}

- Action

**Update list**

Modify details of a list. PUT Console/List/{id_List}

- Action

**Create Department**

Creates a new department in your Brex account and returns its ID, name and description.

- Action

**Create Location**

Creates a new location in your Brex account and returns its ID, name and description.

- Action

**Create User**

Creates a new Brex employee user without sending an invitation, leaving the user inactive until they are invited later. Returns the id of the new user.

- Action

**Create Vendor**

Creates a new vendor in Brex, with optional contact details and payment accounts, and returns the created vendor.

- Action

**Disable User**

Disables (suspends) an active Brex user and returns the updated user. Optionally changes the user's manager, department, location, title, cost center, legal entity or metadata at the same time.

- Action

**Email Card Details**

Sends a secure email containing a card's number, CVV, and expiration date to the recipient you specify.

- Action

**Find a Card by ID**

Returns a single Brex card by its ID, including its owner, status, type, spend controls, addresses and expiration date.

- Action

**Find a User**

Returns the Brex users that match a name, email address or identity-provider ID, optionally narrowed by status, manager, department, location, title, cost center, legal entity or custom field value.

- Action

**Find Department by Name**

Returns the Brex departments that match the specified department name.

- Action

**Find Location by Name**

Returns the Brex locations that match the specified name.

- Action

**Find User by Email**

Returns the Brex user whose email address exactly matches the one you specify, or reports that no user was found.

- Action

**Find Vendor by Name**

Returns the vendors whose name matches the name you supply.

- Action

**Get Card Number**

Returns the full card number, CVV, expiration date and cardholder name for a Brex card.

- Action

**Get Card Transactions**

Returns settled card transactions across all of the company's Brex card accounts, optionally narrowed by user or posted date.

- Action

**Get Cash Transactions**

Returns the transactions for a Brex cash account, optionally only those posted on or after a given date.

- Action

**List cards**

Returns the company's Brex cards, optionally only those belonging to one user.

- Action

**List Cash Accounts**

Returns all of the company's Brex cash accounts with their status, balances, account and routing numbers, and which one is primary.

- Action

**List departments**

Returns the departments in your Brex account, optionally filtered by name.

- Action

**List Expenses**

Returns the expenses on the Brex account, optionally narrowed by user, budget, type, status or date range. Admins and bookkeepers see every expense; other users see only their own.

- Action

**List locations**

Returns the locations in your Brex account, optionally filtered by name.

- Action

**List users**

Returns the users in your Brex account, optionally narrowed by name, email, status, manager, department, location, title, cost center, legal entity or custom field value.

- Action

**List vendors**

Returns the vendors in the Brex account, optionally only those matching a vendor name.

- Action

**Terminate card**

Permanently terminates a Brex card and returns the updated card. The card owner is notified.

- Action

**Update a Budget - “Brex Empower” Customers Only**

Updates an existing Brex budget's name, description, parent, owners, period, amount or dates. Available to Brex Empower customers only.

- Action

**Update card**

Updates an existing Brex vendor card's spend controls and metadata, and returns the updated card.

- Action

**Update User**

Updates a Brex user's status, manager, department, location, title, cost center, legal entity or metadata. Anything left blank is unchanged.

- Action

**Update Vendor by Name**

Finds a Brex vendor by its company name and updates that vendor's name, email, phone, beneficiary name or payment accounts.

## Each app on its own

- [ **MailUp** MailUp is your complete email delivery solution.](https://apiant.ai/connections/mailup)
- [ **Brex** Handle your company’s deposits, payments, credit cards, spend management, and accounting in one place.](https://apiant.ai/connections/brex)

Reviews

## What our customers say

## More from MailUp

- [ **MailUp to Maildroppa** Maildroppa is a B2B email-marketing platform that lets you create, send and track campaigns, manage...](https://apiant.ai/connect/mailup-to-maildroppa)
- [ **MailUp to SendPulse** SendPulse is an Integrated messaging platform providing user communication on all devices with Emails, SMS...](https://apiant.ai/connect/mailup-to-sendpulse)
- [ **MailUp to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/mailup-to-salesforce)
- [ **MailUp to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/mailup-to-slack)
- [ **MailUp to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/mailup-to-stripe)
- [ **MailUp to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/mailup-to-shopify)

## More into Brex

- [ **HubSpot to Brex** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-brex)
- [ **Salesforce to Brex** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-brex)
- [ **Slack to Brex** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-brex)
- [ **Google Sheets to Brex** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-brex)
- [ **Gmail to Brex** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-brex)
- [ **Google Calendar to Brex** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-brex)

Questions

## MailUp and Brex, answered

###

### What can start an automation from MailUp?

Any of MailUp's 4 triggers in the catalog, including New Email Message in List, New Group, New Recipient Subscribed and New Recipient Unsubscribed. Describe the moment in plain language and your agent picks the right one.

###

### What can your agent do in Brex when something happens in MailUp?

Any of Brex's 27 actions, including Create Department, Create Location, Create User and Create Vendor. Your agent maps the data both ways and tests every scenario before it ships.

###

### Can it also run from Brex to MailUp?

Brex has no triggers in the catalog today, so automations start in MailUp. If you need the other direction, ask: your agent reads Brex's API documentation and adds it.

###

### Do I have to build a connector for MailUp or Brex?

No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.

###

### Can my AI client use MailUp and Brex without building an automation?

Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.

###

### What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

###

### Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.
