--- title: "Connect Keap to Lettr - APIANT.ai" description: "When \"New Contact\" fires in Keap, your agent runs \"Add contact\" in Lettr. Describe the whole flow and it is built, tested on every scenario and kept running." canonical: "https://apiant.ai/connect/keap-to-lettr" --- # Connect Keap to Lettr When **New Contact** fires in [Keap](https://apiant.ai/connections/keap), 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. Keap **2** triggers Keap **37** 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 Keap 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 Keap can start in Lettr - When **New Contact** in Keap then **Add contact** in Lettr - When **Updated Contact** in Keap 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 Keap and Lettr ## Triggers and actions 2 triggers · 48 actions - Trigger **New Contact** Polling trigger: fires when a new contact is created in Keap. - Trigger **Updated Contact** Polling trigger: fires when a contact is updated in Keap. - Action **Add contact to campaign sequence** Adds one or more contacts to a sequence in a Keap campaign and returns the result for each contact. - Action **Add order** Creates a one-time order for a contact in Keap, with its order items. - Action **Add product** Creates a new product in Keap with a name, price and description, plus optional SKU, tax, shipping and inventory settings. - Action **Apply Tag to Contact** Apply one or more tags to a contact. - Action **Create Company** Create a new company. - Action **Create Contact** Create a new Keap contact. - Action **Create Contact Custom Field** Create a new custom field on the contact model. - Action **Create Note** Create a note attached to a contact. - Action **Create Opportunity** Create a sales opportunity. - Action **Create Tag** Create a new tag, optionally in a category. - Action **Create Task** Create a task, optionally linked to a contact. - Action **Delete Contact** Delete a Keap contact by ID. - Action **Delete note** Deletes a note from a Keap contact's record. - Action **Delete task** Deletes a task in Keap by its ID. - Action **Get company** Returns a single Keap company by its ID, including address, contact details and custom fields. - Action **Get Contact** Retrieve a Keap contact by ID. - Action **Get Contact Tags** List tags applied to a contact. - Action **Get note** Returns a single note on a Keap contact, including its title, text, type and assigned user. - Action **Get opportunity** Returns one Keap opportunity by its id, including its contact, stage, owner, revenue projections and custom field values. - Action **Get order** Returns a single Keap order by its id, including the contact, order items, totals, payment plan and shipping information. - Action **Get product** Returns a single Keap product by its ID, including price, inventory, options and subscription plans. - Action **Get task** Returns a single Keap task by its ID, including its title, due time, priority, assignee and completion status. - Action **List campaigns** Returns the campaigns in your Keap account, optionally filtered by name and sorted. - Action **List Companies** List companies. - Action **List Contact Custom Fields** Retrieve the contact model including custom fields. - Action **List Contacts** List Keap contacts, optionally filtered by email. - Action **List notes** Returns the notes recorded on a Keap contact, optionally filtered by title, assigned user or time range. - Action **List products** Returns a list of products in your Keap account, optionally filtered by name. - Action **List Tags** List all tags. - Action **List users** Returns the users of the Keap account, optionally filtered by email or name. - Action **Remove Tag from Contact** Remove a tag from a contact. - Action **Send email** Sends an email from a Keap user to one or more contacts. - Action **Update company** Updates an existing company in Keap with the values you provide; fields left blank are not changed. - Action **Update Contact** Update an existing Keap contact by ID. - Action **Update note** Updates an existing note on a Keap contact, changing its title, type, text, pin state or assigned user. - Action **Update opportunity** Updates an existing opportunity in Keap, changing only the details you fill in. - Action **Update task** Updates an existing task in Keap, changing only the details you provide. - 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 - [ **Keap** Keap (formerly Infusionsoft) CRM and marketing automation.](https://apiant.ai/connections/keap) - [ **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 Keap - [ **Keap to Hootsuite** Hootsuite is the leading social media dashboard allowing you to manage multiple networks and profiles and...](https://apiant.ai/connect/keap-to-hootsuite) - [ **Keap to Presenton** Presenton is an AI Presentation generator.](https://apiant.ai/connect/keap-to-presenton) - [ **Keap to Uspacy** Uspacy is a single digital workspace for organizing work processes of your company.](https://apiant.ai/connect/keap-to-uspacy) - [ **Keap to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/keap-to-salesforce) - [ **Keap to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/keap-to-slack) - [ **Keap to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/keap-to-mailchimp) ## 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 ## Keap and Lettr, answered ### ### What can start an automation from Keap? Any of Keap's 2 triggers in the catalog, including New Contact and Updated Contact. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Lettr when something happens in Keap? 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 Keap? Lettr has no triggers in the catalog today, so automations start in Keap. 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 Keap 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 Keap 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.