Integration
Connect Mixmax to InvoiceXpress
When New message sent fires in Mixmax, 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 Mixmax 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 Mixmax can start in InvoiceXpress
When New message sent in Mixmax
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 Mixmax and InvoiceXpress
Triggers and actions 1 trigger · 45 actions
- New message sent
Triggers when a Mixmax message (email) has been sent. Draft, scheduled and failed messages are skipped.
- Add contact
Creates a Mixmax contact, or updates your existing contact with the same email address.
- Add sequence recipient
Adds a recipient to a Mixmax sequence and starts sending the sequence to them, and returns whether they were added.
- Add unsubscribe
Adds one or more email addresses to your Mixmax unsubscribe list, or your workspace's list if you belong to one, so sequences stop sending to them.
- Find sequences by name
Returns the Mixmax sequences whose name matches the text you supply.
- Get message
Returns one Mixmax message by its ID, including its recipients, subject, tracking settings and send status. An error occurs if the message is not found.
- List calls
Returns calls placed with the Mixmax Dialer, newest first, optionally filtered to calls with or without recordings or widened to the whole workspace.
- List contacts
Returns the contacts you own in Mixmax, newest first, optionally filtered by a search on name, email, group or Salesforce account.
- List messages
Returns your Mixmax messages (drafts, scheduled, sent, or failed), newest first.
- List sequence recipients
Returns the recipients that were added to a Mixmax sequence, with each recipient's state and per-stage activity.
- List sequences
Returns the Mixmax sequences you can access, optionally filtered by name or folder.
- List tasks
Returns the Mixmax tasks (email, call, LinkedIn and to-do) visible to the connected user, optionally filtered and sorted.
- List templates
Returns the email templates you can access in Mixmax, optionally filtered by name, subject, folder or owner.
- Send message
Sends a saved Mixmax draft message, optionally updating its properties first. The message is queued and delivered shortly after.
- 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
Reviews
What our customers say
More from Mixmax
Mixmax to SalesforceSalesforce is a leading enterprise customer relationship management (CRM) platform.
Mixmax to SlackSlack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...
Mixmax to StripeStripe is a payment processing platform for online businesses.
Mixmax to ShopifyShopify is a commerce platform for online stores and retail point-of-sale.
Mixmax to QuickBooks OnlineQuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...
Mixmax to PipedrivePipedrive is a sales CRM and pipeline management tool.
More into InvoiceXpress
HubSpot to InvoiceXpressHubSpot is your all-in-one stop for all of your marketing software needs.
Google Sheets to InvoiceXpressGoogle Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.
Gmail to InvoiceXpressGmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...
Google Calendar to InvoiceXpressGoogle Calendar is a time management tool providing scheduling features, event reminders, and integration...
Questions
Mixmax and InvoiceXpress, answered
What can start an automation from Mixmax?
Any of Mixmax's 1 trigger in the catalog, including New message sent. Describe the moment in plain language and your agent picks the right one.
What can your agent do in InvoiceXpress when something happens in Mixmax?
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 Mixmax?
InvoiceXpress has no triggers in the catalog today, so automations start in Mixmax. 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 Mixmax 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 Mixmax 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.