--- title: "Connect Order Sender to Lettr - APIANT.ai" description: "When \"New Client\" fires in Order Sender, your agent runs \"Add contact\" in Lettr." canonical: "https://apiant.ai/connect/order-sender-to-lettr" --- # Connect Order Sender to Lettr When **New Client** fires in [Order Sender](https://apiant.ai/connections/order-sender), your agent runs **Add contact** in [Lettr](https://apiant.ai/connections/lettr). Describe the whole flow and it is built, tested on every scenario and kept running. Order Sender **3** triggers Order Sender **22** actions Lettr **11** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Order Sender and Lettr 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 Order Sender can start in Lettr - When **New Client** in Order Sender then **Add contact** in Lettr - When **New Order** in Order Sender then **Add contact to list** in Lettr 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 Order Sender and Lettr ## Triggers and actions 3 triggers · 33 actions - Trigger **New Client** Triggers when a new customer is added to your Order Sender Business account. - Trigger **New Order** Triggers when a new order is sent in Order Sender Business. Fires once per order line (article) of orders sent in the last 7 days. - Trigger **New Product** Triggers when a new product is added to your Order Sender catalog. - Action **Delete Discount** Deletes a discount in Order Sender Business, identified by its customer and supplier codes and optionally its product or product category. - Action **Delete Payment Condition** Deletes a payment condition from Order Sender Business by its code. - Action **Delete Product** Deletes a product of a supplier by its product code. - Action **Delete Secondary Address** Deletes a customer's secondary address, identified by the customer code and the address name. - Action **Export Clients** Returns every customer in your Order Sender Business account, with contact details, address, tax data and assigned agents. - Action **Export Commissions** Returns the commission rules defined in Order Sender Business, optionally limited to one supplier. - Action **Export Discounts** Returns the discounts defined in Order Sender Business, optionally only those for one customer. - Action **Export Orders** Exports orders from Order Sender Business, optionally filtered by date range, order number range, supplier or specific order numbers. - Action **Export Payment Conditions** Returns the payment conditions defined in Order Sender, optionally limited to one supplier. - Action **Export Price Lists** Returns the price lists in your Order Sender account, with each product's price and discounts, optionally limited to one supplier. - Action **Export Products** Returns the products in your Order Sender account, optionally limited to one supplier. - Action **Export Secondary Addresses** Returns the secondary addresses (sedi) of your Order Sender customers, optionally only those of one customer. - Action **Export Suppliers** Returns every supplier in the Order Sender Business account with its code, name, contacts, address and commission settings. - Action **Import Client** Creates or updates a customer in Order Sender Business, matched by its unique customer code. - Action **Import Client Payment Condition** Assigns a payment condition to a customer in Order Sender Business, optionally scoped to a supplier. - Action **Import Commission** Imports a commission rate for a supplier, optionally limited to a product or product category, into Order Sender Business. - Action **Import Discount** Creates or updates a discount for a customer and supplier, optionally limited to a product or product category. - Action **Import Payment Condition** Creates or updates a payment condition in Order Sender by its code. - Action **Import Price List** Imports a product price into a supplier's price list in Order Sender, creating or updating the price list entry. - Action **Import Product** Creates or updates a product in the Order Sender catalog. - Action **Import Secondary Address** Creates or updates a secondary address (sede) for a customer in Order Sender Business. - Action **Import Supplier** Creates or updates a supplier in Order Sender Business, matched by its unique supplier code. - Action **Add audience list** Creates a new audience list in Lettr with the given name and returns the created list. - Action **Add contact** Adds a new contact to your Lettr audience, optionally placing it on a list, setting custom properties, and sending a double opt-in confirmation email. - Action **Add contact to list** Adds an existing contact to one of your audience lists. Succeeds whether the contact was newly added or was already on the list. - Action **Add template** Creates a new email template in Lettr from HTML or Topol editor JSON content, and publishes its first version with the merge tags found in the content. - Action **Delete contact** Permanently deletes a contact from your Lettr audience. - Action **Get contact** Returns a single audience contact, including its subscription status, custom properties, lists and topics. - Action **Get template** Returns a single email template by its slug, including its HTML, editor content, purpose, status and version details. - Action **List audience lists** Returns all audience lists in your Lettr team, with each list's name and contact count. - Action **List contacts** Returns the contacts in your Lettr audience, optionally narrowed by a search term, subscription status, list or segment. - Action **List templates** Returns the email templates in a Lettr project, optionally limited to one folder or to transactional or campaign templates. - Action **Update contact** Updates an existing contact in your Lettr audience, changing its email address, subscription status or custom properties. Fields left blank are not changed. ## Each app on its own - [ **Order Sender** Order Sender is a Mobile Sales tool for Order Collection, designed for Sales Networks and Sales Agents.](https://apiant.ai/connections/order-sender) - [ **Lettr** Lettr is a email API for artisans, send transactional emails using HTML or stored templates.](https://apiant.ai/connections/lettr) Reviews ## What our customers say ## More from Order Sender - [ **Order Sender to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/order-sender-to-salesforce) - [ **Order Sender to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/order-sender-to-slack) - [ **Order Sender to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/order-sender-to-stripe) - [ **Order Sender to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/order-sender-to-shopify) - [ **Order Sender to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/order-sender-to-quickbooks-online) - [ **Order Sender to Pipedrive** Pipedrive is a sales CRM and pipeline management tool.](https://apiant.ai/connect/order-sender-to-pipedrive) ## More into Lettr - [ **HubSpot to Lettr** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-lettr) - [ **Salesforce to Lettr** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-lettr) - [ **Slack to Lettr** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-lettr) - [ **Google Sheets to Lettr** Google Sheets](https://apiant.ai/connect/google-sheets-to-lettr) - [ **Gmail to Lettr** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-lettr) - [ **Google Calendar to Lettr** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-lettr) Questions ## Order Sender and Lettr, answered ### ### What can start an automation from Order Sender? Any of Order Sender's 3 triggers in the catalog, including New Client, New Order and New Product. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Lettr when something happens in Order Sender? Any of Lettr's 11 actions, including Update contact, Add audience list, Add contact and Add contact to list. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Lettr to Order Sender? Lettr has no triggers in the catalog today, so automations start in Order Sender. If you need the other direction, ask: your agent reads Lettr's API documentation and adds it. ### ### Do I have to build a connector for Order Sender or Lettr? 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 Order Sender and Lettr 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.