Integration
Connect MailUp to InvoiceXpress
When New Email Message in List fires in MailUp, your agent runs Create Invoice in InvoiceXpress. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want MailUp and InvoiceXpress to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne 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.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)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)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)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)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)Grok
Open grok.com/connectors, choose New Connector, then Custom, and paste the address. Grok signs you in in your browser.
Setup guide (opens in a new tab)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)Example flows
What MailUp can start in InvoiceXpress
When New Email Message in List in MailUp
then Create Invoice in InvoiceXpress
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 InvoiceXpress
Triggers and actions 4 triggers · 57 actions
- 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.
- New Group
New group added to the specified list. MailUp is a multi-list environment and groups are list-specific.
- New Recipient Subscribed
There is a new subscriber in the specified list. MailUp is a multi-list environment.
- New Recipient Unsubscribed
A recipient unsubscribed from the specified list. MailUp is a multi-list environment.
- Add list
Create a new list. POST Console/List
- Add Recipient to Group
Add recipient to the specified group on the list.
- Add Recipient to List
Adds a new recipient to the specified list as a subscriber.
- Create New Email Message
Create a new email message on the specified list.
- Create New Group
Add a new group to the specified list. MailUp is a multi-list environment.
- Delete email message
Delete an email message. DELETE Console/List/{id_List}/Email/{id_Message}
- Delete group
Delete a group in a list. DELETE Console/List/{id_List}/Group/{id_Group}
- Delete list
Delete a list. DELETE Console/List/{id_List}
- Get email message
Retrieve email message details. GET Console/List/{id_List}/Email/{id_Message}
- Get list
Retrieve list details by id. GET Console/List/{id_List}
- List email messages
Retrieve email messages of a list. GET Console/List/{id_List}/Emails
- List Email Message Sendings
lists the sendings (send tasks, with recipients count and status) created for an email message.
- List Group Recipients
Lists the recipients in a MailUp group (GET Console/Group/{id_group}/Recipients), with id, email, name and personal data fields.
- List groups
Retrieve groups of a list. GET Console/List/{id_List}/Groups
- List lists
Retrieve the console's lists. GET Console/List on services.mailup.com/API/v1.1/Rest/ConsoleService.svc
- List subscribed recipients
Retrieve subscribed recipients of a list. GET Console/List/{id_List}/Recipients/Subscribed
- Remove recipient from group
Unsubscribe a recipient from a group. DELETE Console/Group/{id_Group}/Unsubscribe/{id_Recipient}
- Remove Recipient From List
This method unsubscribe the given recipient from the specified list.
- Send Message to Email Address
Sends the specified message (previously created in MailUp in the specified List) to the email address specified.
- Send Message to Group
Send a message to a predefined group in the specified list.
- Send message to list
Send an email message to all recipients of a list. POST Console/List/{id_List}/Email/{id_Message}/Send
- Unsubscribe recipient from list
Unsubscribe a recipient from a list. DELETE Console/List/{id_List}/Unsubscribe/{id_Recipient}
- Update email message
Modify an email message. PUT Console/List/{id_List}/Email/{id_Message}
- Update group
Modify a group in a list. PUT Console/List/{id_List}/Group/{id_Group}
- Update list
Modify details of a list. PUT Console/List/{id_List}
- Add estimate
Creates a new estimate document (quote, proforma or fees note) in InvoiceXpress, with its line items and client.
- Add guide
Creates a shipping, transport or devolution (return) guide for goods, with its items, load and delivery addresses and client.
- Add item
Creates a new product or service item in your InvoiceXpress catalog.
- Add sequence
Creates a new document sequence (series) in InvoiceXpress and returns whether the request was accepted and where to check its status.
- Add tax
Creates a tax rate in InvoiceXpress and returns it.
- Cancel Invoice
Cancels a finalized InvoiceXpress invoice, recording the reason.
- Cancel Invoice-Receipt
Cancels a finalized InvoiceXpress invoice-receipt, recording the reason.
- Create Invoice
Creates a draft invoice in InvoiceXpress for a client, with its line items.
- Create Invoice-Receipt
Creates a draft invoice-receipt in InvoiceXpress for a client, with its line items.
- Delete Draft Invoice
Deletes a draft InvoiceXpress invoice.
- Delete Draft Invoice-Receipt
Deletes a draft InvoiceXpress invoice-receipt.
- Delete item
Deletes an item from your InvoiceXpress account.
- Finalize Invoice
Finalizes a draft InvoiceXpress invoice, giving it its legal number.
- Finalize Invoice-Receipt
Finalizes a draft InvoiceXpress invoice-receipt, giving it its legal number.
- Find clients by code
Finds the client whose client code matches the code you enter, and returns its details.
- Find clients by name
Finds a client by its exact name and returns the client record.
- Generate PDF
Generates the PDF of an InvoiceXpress invoice and returns its download link.
- Get a Client
Returns one InvoiceXpress client by its ID, with contact and fiscal details.
- Get a Invoice
Returns one InvoiceXpress invoice by its ID, with status, totals and client.
- Get estimate
Returns a single estimate (quote, proforma or fees note) with its client, line items and totals.
- Get item
Returns a single item (product or service) from your InvoiceXpress catalog, including its price, unit and tax.
- List clients
Returns all clients in your InvoiceXpress account.
- List invoices
Returns a list of invoices and other billing documents, optionally filtered by type, status, client, dates and totals.
- List items
Returns all the items (products and services) saved in your InvoiceXpress account.
- List sequences
Returns all document sequences (series) in your InvoiceXpress account, including their current document numbers and ATCUD validation codes.
- List taxes
Returns all the taxes configured in your InvoiceXpress account.
- Mark as Paid
Marks a finalized InvoiceXpress invoice as paid (settled).
- Sends Invoice by Email
Emails a finalized InvoiceXpress invoice to a recipient.
- Update estimate
Updates a draft estimate (quote, proforma or fees note), replacing its line items and details.
- Update Invoice
Updates a draft InvoiceXpress invoice; the line items you send replace the existing ones.
- Update Invoice-Receipt
Updates a draft InvoiceXpress invoice-receipt; the line items you send replace the existing ones.
- Update item
Updates an existing item's name, price, description, unit and tax.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
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Questions
MailUp and InvoiceXpress, 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 InvoiceXpress when something happens in MailUp?
Any of InvoiceXpress's 32 actions, including Create Invoice, Create Invoice-Receipt, Update estimate and Update Invoice. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from InvoiceXpress to MailUp?
InvoiceXpress has no triggers in the catalog today, so automations start in MailUp. If you need the other direction, ask: your agent reads InvoiceXpress's API documentation and adds it.
Do I have to build a connector for MailUp or InvoiceXpress?
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 InvoiceXpress 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.