App

InvoiceXpress integrations

Connect InvoiceXpress to any other app, or use it from your AI client over MCP. InvoiceXpress is online invoicing software that helps all businesses issue invoices in seconds, hassle free.

Connects with an API keyinvoicexpress.com
32 actions

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 to automate with InvoiceXpress?

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Connect your AI client

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)
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)

Popular

InvoiceXpress with the apps people pair it with most

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What your agent can do with InvoiceXpress

Triggers and actions 32 actions

  • Action
    Add estimate

    Creates a new estimate document (quote, proforma or fees note) in InvoiceXpress, with its line items and client.

  • Action
    Add guide

    Creates a shipping, transport or devolution (return) guide for goods, with its items, load and delivery addresses and client.

  • Action
    Add item

    Creates a new product or service item in your InvoiceXpress catalog.

  • Action
    Add sequence

    Creates a new document sequence (series) in InvoiceXpress and returns whether the request was accepted and where to check its status.

  • Action
    Add tax

    Creates a tax rate in InvoiceXpress and returns it.

  • Action
    Cancel Invoice

    Cancels a finalized InvoiceXpress invoice, recording the reason.

  • Action
    Cancel Invoice-Receipt

    Cancels a finalized InvoiceXpress invoice-receipt, recording the reason.

  • Action
    Create Invoice

    Creates a draft invoice in InvoiceXpress for a client, with its line items.

  • Action
    Create Invoice-Receipt

    Creates a draft invoice-receipt in InvoiceXpress for a client, with its line items.

  • Action
    Delete Draft Invoice

    Deletes a draft InvoiceXpress invoice.

  • Action
    Delete Draft Invoice-Receipt

    Deletes a draft InvoiceXpress invoice-receipt.

  • Action
    Delete item

    Deletes an item from your InvoiceXpress account.

  • Action
    Finalize Invoice

    Finalizes a draft InvoiceXpress invoice, giving it its legal number.

  • Action
    Finalize Invoice-Receipt

    Finalizes a draft InvoiceXpress invoice-receipt, giving it its legal number.

  • Action
    Find clients by code

    Finds the client whose client code matches the code you enter, and returns its details.

  • Action
    Find clients by name

    Finds a client by its exact name and returns the client record.

  • Action
    Generate PDF

    Generates the PDF of an InvoiceXpress invoice and returns its download link.

  • Action
    Get a Client

    Returns one InvoiceXpress client by its ID, with contact and fiscal details.

  • Action
    Get a Invoice

    Returns one InvoiceXpress invoice by its ID, with status, totals and client.

  • Action
    Get estimate

    Returns a single estimate (quote, proforma or fees note) with its client, line items and totals.

  • Action
    Get item

    Returns a single item (product or service) from your InvoiceXpress catalog, including its price, unit and tax.

  • Action
    List clients

    Returns all clients in your InvoiceXpress account.

  • Action
    List invoices

    Returns a list of invoices and other billing documents, optionally filtered by type, status, client, dates and totals.

  • Action
    List items

    Returns all the items (products and services) saved in your InvoiceXpress account.

  • Action
    List sequences

    Returns all document sequences (series) in your InvoiceXpress account, including their current document numbers and ATCUD validation codes.

  • Action
    List taxes

    Returns all the taxes configured in your InvoiceXpress account.

  • Action
    Mark as Paid

    Marks a finalized InvoiceXpress invoice as paid (settled).

  • Action
    Sends Invoice by Email

    Emails a finalized InvoiceXpress invoice to a recipient.

  • Action
    Update estimate

    Updates a draft estimate (quote, proforma or fees note), replacing its line items and details.

  • Action
    Update Invoice

    Updates a draft InvoiceXpress invoice; the line items you send replace the existing ones.

  • Action
    Update Invoice-Receipt

    Updates a draft InvoiceXpress invoice-receipt; the line items you send replace the existing ones.

  • Action
    Update item

    Updates an existing item's name, price, description, unit and tax.

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What our customers say

Questions

InvoiceXpress, answered

Is there a InvoiceXpress MCP server?

APIANT's MCP server at https://mcp.apiant.ai works with InvoiceXpress. Add that address to any AI client that takes a remote MCP server and sign in once in your browser. Your client can then run InvoiceXpress actions on demand, or have APIANT build, test and run automations that use InvoiceXpress. Nothing to install.

What can your agent do in InvoiceXpress?

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 I use InvoiceXpress directly from Claude, ChatGPT or Cursor?

Yes. Connect your AI client to APIANT once and it works with InvoiceXpress two ways. Ask it to do something in InvoiceXpress 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 on its own. A one-off action uses your plan's tasks the same way an automation step does.

Do I need to write code against the InvoiceXpress API?

No. APIANT connects to the InvoiceXpress API for you, with your InvoiceXpress API key. Describe what you want in plain language and your agent builds it on the InvoiceXpress triggers and actions in the catalog. If you need an endpoint that is not there yet, your agent reads the InvoiceXpress API documentation and adds it.

Which apps can InvoiceXpress connect to?

Any app in the catalog; the list on this page pairs InvoiceXpress with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector.

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.