--- title: "Connect Mailbox Power to Factur-X by InvoiceXML - APIANT.ai" description: "When \"New Contact Added to Group\" fires in Mailbox Power, your agent runs \"Create Factur-X Invoice\" in Factur-X by InvoiceXML." canonical: "https://apiant.ai/connect/mailbox-power-to-factur-x-by-invoicexml" --- # Connect Mailbox Power to Factur-X by InvoiceXML When **New Contact Added to Group** fires in [Mailbox Power](https://apiant.ai/connections/mailbox-power), your agent runs **Create Factur-X Invoice** in [Factur-X by InvoiceXML](https://apiant.ai/connections/factur-x-by-invoicexml). Describe the whole flow and it is built, tested on every scenario and kept running. Mailbox Power **2** triggers Mailbox Power **4** actions Factur-X by InvoiceXML **10** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Mailbox Power and Factur-X by InvoiceXML 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 Mailbox Power can start in Factur-X by InvoiceXML - When **New Contact Added to Group** in Mailbox Power then **Create Factur-X Invoice** in Factur-X by InvoiceXML - When **Updated Contact** in Mailbox Power then **Extract Invoice JSON** in Factur-X by InvoiceXML 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 Mailbox Power and Factur-X by InvoiceXML ## Triggers and actions 2 triggers · 14 actions - Trigger **New Contact Added to Group** Triggers when a contact is added to the selected Mailbox Power contact group. - Trigger **Updated Contact** Triggers when a contact in Mailbox Power is added or any of its details change. - Action **Create or Update Contact** Creates a contact in Mailbox Power, or updates the existing contact whose name and address match. - Action **Delete Contact** Deletes a contact from your Mailbox Power account. - Action **List contacts** Returns every contact in the Mailbox Power account, including address, contact details and group membership. - Action **Remove Contact From Group** Removes a contact from a Mailbox Power contact group. - Action **Convert CII XML to Factur-X** Converts a CII XML invoice into a Factur-X compliant PDF/A-3 with the XML embedded. The API generates a visual PDF rendering of the invoice and packages it with the source CII XML. - Action **Convert Factur-X PDF to CII** Extracts the embedded CII (UN/CEFACT Cross Industry Invoice) XML from a Factur-X PDF and returns it as a standalone XML file. - Action **Convert Factur-X PDF to UBL** Extracts the embedded CII XML from a Factur-X PDF and converts it to UBL (Universal Business Language) XML. - Action **Convert UBL XML to Factur-X** Converts a UBL XML invoice into a Factur-X compliant PDF/A-3. The API maps UBL to CII, generates a visual PDF rendering, and embeds the CII XML in the PDF/A-3 container. - Action **Create Factur-X Invoice** Builds a Factur-X invoice from structured header, party, payment, and line-item data, then returns a ready-to-deliver PDF/A-3b file. - Action **Embed XML Into PDF (Factur-X)** Takes a PDF and a CII XML and produces a Factur-X compliant PDF/A-3 with the XML attached as factur-x.xml. Use this when you already have both the visual PDF and the structured XML of an invoice and just need the hybrid wrapper. - Action **Extract Invoice JSON** Pulls invoice fields from a PDF into structured JSON, preferring embedded Factur-X XML when present and falling back to intelligent extraction when not. - Action **Extract Invoice XML** Retrieves machine-readable invoice XML from a PDF, returning embedded Factur-X XML directly or generating compliant XML when none is embedded. - Action **Render CII as PDF** Renders a CII (UN/CEFACT Cross Industry Invoice) XML document into a human-readable PDF. The output is a visual PDF, not a Factur-X hybrid file. - Action **Validate Factur-X Invoice** Checks whether a Factur-X invoice is structurally and semantically valid, including schema status, conformance level, and rule-level issues. ## Each app on its own - [ **Mailbox Power** Mailbox Power enables you to engage your customers and stay top of mind with your clients by sending...](https://apiant.ai/connections/mailbox-power) - [ **Factur-X by InvoiceXML** Factur-X by InvoiceXML is an e-invoice automation: create, transform, validate, and extract Factur-X PDFs...](https://apiant.ai/connections/factur-x-by-invoicexml) Reviews ## What our customers say ## More from Mailbox Power - [ **Mailbox Power to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/mailbox-power-to-salesforce) - [ **Mailbox Power to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/mailbox-power-to-slack) - [ **Mailbox Power to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailbox-power-to-mailchimp) - [ **Mailbox Power to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/mailbox-power-to-stripe) - [ **Mailbox Power to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/mailbox-power-to-shopify) - [ **Mailbox Power to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/mailbox-power-to-quickbooks-online) ## More into Factur-X by InvoiceXML - [ **Stripe to Factur-X by InvoiceXML** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/stripe-to-factur-x-by-invoicexml) - [ **HubSpot to Factur-X by InvoiceXML** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-factur-x-by-invoicexml) - [ **Salesforce to Factur-X by InvoiceXML** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-factur-x-by-invoicexml) - [ **Slack to Factur-X by InvoiceXML** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-factur-x-by-invoicexml) - [ **Google Sheets to Factur-X by InvoiceXML** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-factur-x-by-invoicexml) - [ **Gmail to Factur-X by InvoiceXML** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-factur-x-by-invoicexml) Questions ## Mailbox Power and Factur-X by InvoiceXML, answered ### ### What can start an automation from Mailbox Power? Any of Mailbox Power's 2 triggers in the catalog, including New Contact Added to Group and Updated Contact. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Factur-X by InvoiceXML when something happens in Mailbox Power? Any of Factur-X by InvoiceXML's 10 actions, including Create Factur-X Invoice, Convert CII XML to Factur-X, Convert Factur-X PDF to CII and Convert Factur-X PDF to UBL. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Factur-X by InvoiceXML to Mailbox Power? Factur-X by InvoiceXML has no triggers in the catalog today, so automations start in Mailbox Power. If you need the other direction, ask: your agent reads Factur-X by InvoiceXML's API documentation and adds it. ### ### Do I have to build a connector for Mailbox Power or Factur-X by InvoiceXML? 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 Mailbox Power and Factur-X by InvoiceXML 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.