--- title: "Connect Modusign and Stax - APIANT.ai" description: "When \"Document Updated\" fires in Modusign, your agent runs \"Create Customer\" in Stax, or \"List Payment\" in Stax to \"Add document request\" in Modusign." canonical: "https://apiant.ai/connect/modusign-to-stax" --- # Connect Modusign and Stax When **Document Updated** fires in [Modusign](https://apiant.ai/connections/modusign), your agent runs **Create Customer** in [Stax](https://apiant.ai/connections/stax), or **List Payment** in Stax to **Add document request** in Modusign. Describe the whole flow and it is built, tested on every scenario and kept running. Modusign **1** trigger Modusign **12** actions Stax **1** trigger Stax **17** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Modusign and Stax 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 Modusign and Stax can do together ### From Modusign to Stax - When **Document Updated** in Modusign then **Create Customer** in Stax - When **Document Updated** in Modusign then **Create Scheduled Invoice** in Stax ### From Stax to Modusign - When **List Payment** in Stax then **Add document request** in Modusign - When **List Payment** in Stax then **Request Document With Template** in Modusign 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 Modusign and Stax ## Triggers and actions 2 triggers · 29 actions - Trigger **Document Updated** Triggers when a document is created, signed, completed, or aborted. - Action **Add document request** Request signatures on a document (signature request). - Action **Add label** Creates a new label in Modusign. - Action **Cancel document request** Cancel a pending signature request. - Action **Delete label** Delete a label. - Action **Delete template** Delete a template. - Action **Get Document** Retrieves the details of a single Modusign document by its ID. - Action **Get template** Get a template by id. - Action **Get user** Gets the Modusign user whose credentials the connection uses. - Action **Remind Signing** Resend signing request notifications to signers who did not sign. - Action **Request Document With Template** Create a document using a template and request signers to sign it. - Action **Search Documents** Search for documents with specific conditions. - Action **Update label** Update a label. - Trigger **List Payment** Triggers when a new payment transaction is recorded in Stax. - Action **Capture payment** Captures funds from a pre-authorized Stax transaction, turning the pre-authorization into a completed charge. Returns the updated transaction. - Action **Create Customer** Creates a customer record on the Stax merchant account and returns the new customer. - Action **Create Item** Creates an item in the merchant's Stax catalog and returns the new catalog item. - Action **Create Scheduled Invoice** Creates a scheduled invoice that automatically generates invoices for a customer on a one-time or recurring schedule, with optional autopay. Returns the new schedule. - Action **Delete Catalog Item** Deletes a catalog item from Stax. - Action **Delete payment method** Deletes a customer's saved payment method in Stax and returns the deleted payment method. - Action **Delete Scheduled Invoice** Deletes a recurring invoice schedule so it stops generating invoices. - Action **Find Customers** Searches your Stax customers by name, email, company, phone, address or other details and returns the matching customers. - Action **Find Invoices** Returns the invoices on the Stax merchant account that match the search criteria you supply, such as keywords, customer name, company, email, price, schedule or payment method. - Action **Find Items** Searches the merchant's catalog for items matching a name, code, price or other criteria and returns the matching items. - Action **Find Payment Methods** Returns all saved payment methods (cards and bank accounts) for a Stax customer. - Action **Find Payments** Returns the payments and other transactions on the merchant account that match the search criteria, such as keywords, customer, date range, amount, type or status. - Action **Make a Payment** Charges a customer's saved payment method for the amount you specify, or places a pre-authorization to capture later. Returns the resulting transaction. - Action **Refund payment** Refunds all or part of a settled Stax payment transaction back to the customer. - Action **Update customer** Updates an existing customer's contact details, address, notes and options in Stax, and returns the updated customer. - Action **Update invoice** Updates an existing unpaid invoice's customer, amounts, line items, memos and payment options, and returns the updated invoice. Fully paid invoices cannot be edited. - Action **Void payment** Voids a payment transaction in Stax before it settles, cancelling the charge. ## Each app on its own - [ **Modusign** Modusign is a simple electronic contract service that makes signing a contract and its storage at once at...](https://apiant.ai/connections/modusign) - [ **Stax** Stax makes it easy to accept payments in-person and online and provides businesses with the tools they need...](https://apiant.ai/connections/stax) Reviews ## What our customers say ## More from Modusign - [ **Modusign to timeBuzzer** timeBuzzer is a simple time tracker and timesheet app to track hours worked across projects in real time.](https://apiant.ai/connect/modusign-to-timebuzzer) - [ **Modusign to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/modusign-to-salesforce) - [ **Modusign to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/modusign-to-slack) - [ **Modusign to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/modusign-to-stripe) - [ **Modusign to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/modusign-to-shopify) - [ **Modusign to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/modusign-to-quickbooks-online) ## More into Stax - [ **HubSpot to Stax** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-stax) - [ **Salesforce to Stax** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-stax) - [ **Slack to Stax** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-stax) - [ **Google Sheets to Stax** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-stax) - [ **Gmail to Stax** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-stax) - [ **Google Calendar to Stax** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-stax) Questions ## Modusign and Stax, answered ### ### What can start an automation from Modusign? Any of Modusign's 1 trigger in the catalog, including Document Updated. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Stax when something happens in Modusign? Any of Stax's 17 actions, including Create Customer, Create Item, Create Scheduled Invoice and Update customer. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Stax to Modusign? Yes. When something happens in Stax, your agent can act in Modusign too. This page covers both directions: Stax's triggers and Modusign's actions are listed here as well. ### ### Do I have to build a connector for Modusign or Stax? 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 Modusign and Stax 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.