--- title: "Connect ActiveCampaign Postmark to Knock - APIANT.ai" description: "When \"New Bounce\" fires in ActiveCampaign Postmark, your agent runs \"Add user\" in Knock." canonical: "https://apiant.ai/connect/activecampaign-postmark-to-knock" --- # Connect ActiveCampaign Postmark to Knock When **New Bounce** fires in [ActiveCampaign Postmark](https://apiant.ai/connections/activecampaign-postmark), your agent runs **Add user** in [Knock](https://apiant.ai/connections/knock). Describe the whole flow and it is built, tested on every scenario and kept running. ActiveCampaign Postmark **6** triggers ActiveCampaign Postmark **13** actions Knock **8** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want ActiveCampaign Postmark and Knock 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 ActiveCampaign Postmark can start in Knock - When **New Bounce** in ActiveCampaign Postmark then **Add user** in Knock - When **New Delivery** in ActiveCampaign Postmark then **Get user** in Knock 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 ActiveCampaign Postmark and Knock ## Triggers and actions 6 triggers · 21 actions - Trigger **New Bounce** Triggers when an email sent through Postmark bounces. - Trigger **New Delivery** Triggers when Postmark confirms an email was accepted by a recipient's mail server (one event per recipient). - Trigger **New Email Open** Triggers when a recipient opens an email sent through Postmark with open tracking enabled. - Trigger **New Inbound Message** Triggers when an email arrives at the server's inbound address and Postmark parses it. - Trigger **New Link Click** Triggers when a recipient clicks a tracked link in an email for the first time. - Trigger **New Spam Complaint** Triggers when a recipient marks an email sent through Postmark as spam. - Action **Activate bounce** Reactivates an email address that Postmark deactivated because of a bounce, so it can receive email again. - Action **Add template** Creates a new email template (standard or layout) on your Postmark server. - Action **Delete template** Deletes an email template from your Postmark server by its ID or alias. - Action **Find bounces by criteria** Returns bounces on your Postmark server matching criteria such as bounce type, email address, tag, message, stream, or date range. - Action **Find outbound messages by criteria** Searches outbound email messages sent through your Postmark server by recipient, sender, tag, status, subject, date range or message stream. Returns up to 500 matching messages. - Action **Get bounce** Returns the details of a single bounce, including the bounced email address, bounce type, and whether the address can be reactivated. - Action **Get outbound message** Returns the full details of one sent email, including its bodies, recipients, status, metadata and delivery events. - Action **Get template** Returns a single email template, including its subject, HTML and text content, by its ID or alias. - Action **List templates** Returns the email templates on your Postmark server, optionally filtered by template type or layout. - Action **Send an Email** Sends a single email through your Postmark server. - Action **Send batch emails** Sends up to 500 emails in a single request and returns Postmark's per-message result for each. - Action **Send Email With Template** Sends an email rendered from one of your Postmark templates, filling it with the values you supply. - Action **Update template** Updates an existing Postmark template's name, subject, HTML or text content, alias, or layout. - Action **Add object** Creates an object in a Knock collection, or updates it if an object with that ID already exists, setting its name, locale, time zone, custom properties, channel data and preferences. - Action **Add user** Create a user in Knock, or update an existing one with the same user id (only the supplied properties change). - Action **Delete object** Permanently removes an object from the specified collection. This cannot be undone. - Action **Delete user** Permanently delete a Knock user and all associated data. - Action **Get object** Retrieves a specific object by its ID from a collection, including all of its custom properties. - Action **Get user** Retrieve a single Knock user by id. - Action **List objects** Lists the objects in a Knock collection, optionally with their preferences. - Action **List users** List all users in the Knock account, paginated. ## Each app on its own - [ **ActiveCampaign Postmark** Postmark is specifically built to deliver your app's emails to the inbox, fast.](https://apiant.ai/connections/activecampaign-postmark) - [ **Knock** Notification infrastructure API for sending multi-channel messages: email, SMS, push, in-app, and chat...](https://apiant.ai/connections/knock) Reviews ## What our customers say ## More from ActiveCampaign Postmark - [ **ActiveCampaign Postmark to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/activecampaign-postmark-to-hubspot) - [ **ActiveCampaign Postmark to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/activecampaign-postmark-to-salesforce) - [ **ActiveCampaign Postmark to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/activecampaign-postmark-to-slack) - [ **ActiveCampaign Postmark to Google Sheets** Google Sheets](https://apiant.ai/connect/activecampaign-postmark-to-google-sheets) - [ **ActiveCampaign Postmark to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/activecampaign-postmark-to-gmail) - [ **ActiveCampaign Postmark to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/activecampaign-postmark-to-google-calendar) ## More into Knock - [ **EquipDash to Knock** EquipDash is a AI-powered equipment rental and tour booking software built for outdoor recreation operators.](https://apiant.ai/connect/equipdash-to-knock) - [ **HubSpot to Knock** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-knock) - [ **Salesforce to Knock** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-knock) - [ **Slack to Knock** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-knock) - [ **Google Sheets to Knock** Google Sheets](https://apiant.ai/connect/google-sheets-to-knock) - [ **Gmail to Knock** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-knock) Questions ## ActiveCampaign Postmark and Knock, answered ### ### What can start an automation from ActiveCampaign Postmark? Any of ActiveCampaign Postmark's 6 triggers in the catalog, including New Bounce, New Delivery, New Email Open and New Inbound Message. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Knock when something happens in ActiveCampaign Postmark? Any of Knock's 8 actions, including Add object, Add user, Get object and Get user. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Knock to ActiveCampaign Postmark? Knock has no triggers in the catalog today, so automations start in ActiveCampaign Postmark. If you need the other direction, ask: your agent reads Knock's API documentation and adds it. ### ### Do I have to build a connector for ActiveCampaign Postmark or Knock? 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 ActiveCampaign Postmark and Knock 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.