--- title: "Connect ActiveTrail and PostStack - APIANT.ai" description: "When \"Contact Added to Group\" fires in ActiveTrail, your agent runs \"Add a contact\" in PostStack." canonical: "https://apiant.ai/connect/activetrail-to-poststack" --- # Connect ActiveTrail and PostStack When **Contact Added to Group** fires in [ActiveTrail](https://apiant.ai/connections/activetrail), your agent runs **Add a contact** in [PostStack](https://apiant.ai/connections/poststack), or **Contact Updated (instant)** in PostStack to **Add Contact to Group** in ActiveTrail. Describe the whole flow and it is built, tested on every scenario and kept running. ActiveTrail **4** triggers ActiveTrail **15** actions PostStack **7** triggers PostStack **31** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want ActiveTrail and PostStack 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 ActiveTrail and PostStack can do together ### From ActiveTrail to PostStack - When **Contact Added to Group** in ActiveTrail then **Add a contact** in PostStack - When **Contact Updated** in ActiveTrail then **Add contacts to segment** in PostStack ### From PostStack to ActiveTrail - When **Contact Updated (instant)** in PostStack then **Add Contact to Group** in ActiveTrail - When **New Contact (instant)** in PostStack then **Add email campaign** in ActiveTrail 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 ActiveTrail and PostStack ## Triggers and actions 11 triggers · 46 actions - Trigger **Contact Added to Group** Triggers when a contact is added to a group (any group). - Trigger **Contact Removed From Group** Triggers when a contact is removed from a group (any group). - Trigger **Contact Unsubscribed** Triggers when a contact unsubscribes from receiving further emails. - Trigger **Contact Updated** Triggers when a contact record in ActiveTrail is updated via the API (status or details). - Action **Add Contact to Group** Add a new or an existing contact to a specific group (The new contact will be created if not already exists). - Action **Add email campaign** Creates a new email campaign for one or more groups, and either sends/schedules it or saves it as a draft. - Action **Add group** Creates a new group in your ActiveTrail account and returns it. - Action **Add order** Adds an order (or updates it if the order id already exists) to ActiveTrail Commerce, with its customer, amounts and products. - Action **Add template** Create a template in My Templates. - Action **Delete group** Deletes a group from the ActiveTrail account. - Action **Find Group** Returns up to 100 groups whose name matches the search term. - Action **Get email campaign** Retrieves an ActiveTrail email campaign by its id, including its details, design, template, A/B settings and e-commerce data. - Action **Get group** Get a group's details (name, contact counts, creation date) by its id. - Action **Get order** Returns a commerce order by your store's order id. - Action **Get template** Returns one of your My Templates by id: its name, subject and category. - Action **List email campaigns** Lists the account's email campaigns, optionally filtered by mailing list, content category, name, send type and last-updated date range. - Action **List groups** Lists the groups in the ActiveTrail account, optionally filtered by group name. - Action **Remove Contact From Group** Removes a contact from an ActiveTrail group. The contact itself stays in the account. - Action **Update group** Rename an existing ActiveTrail group. - Trigger **Contact Deleted (instant)** Fires when a contact is deleted (event: contact.deleted). - Trigger **Contact Updated (instant)** Fires when a contact is updated (event: contact.updated). - Trigger **Email Bounced (instant)** Fires when an email bounces (event: email.bounced). - Trigger **Email Delivered (instant)** Fires when an email is delivered (event: email.delivered). - Trigger **New Contact (instant)** Fires when a contact is created (event: contact.created). - Trigger **New Inbound Email** Polls for newly received inbound emails. - Trigger **New Sent Email (instant)** Fires when an email is sent (event: email.sent). - Action **Add a broadcast** Create a new marketing broadcast. - Action **Add a contact** Create a new contact. - Action **Add a segment** Create a new manual contact segment. - Action **Add a template** Create a new email template. - Action **Add contacts to segment** Add contacts to an existing segment. - Action **Add suppression** Add an address to the suppression list. - Action **Cancel broadcast** Cancel an in-flight broadcast. - Action **Cancel email** Cancel a scheduled or queued email before it sends. - Action **Delete a contact** Delete a contact. - Action **Delete a template** Delete an email template. - Action **Get a contact** Fetch one contact by ID. - Action **Get a template** Fetch one email template by ID. - Action **Get broadcast** Retrieve one broadcast by its public id, including the HTML and text bodies that the list endpoint omits. - Action **Get email** Fetch one sent or queued email by ID. - Action **Get email events** Get the delivery event timeline for one email. - Action **Get inbound email** Fetch one received inbound email by ID. - Action **Import contacts** Bulk-import a CSV list of contacts. - Action **List broadcasts** List marketing broadcasts. - Action **List contacts** List contacts in the account. - Action **List emails** List sent, queued, and scheduled emails. - Action **List inbound emails** List emails received via inbound parsing. - Action **List segments** List contact segments. - Action **List suppressed addresses** List addresses on the suppression list. - Action **List templates** List email templates. - Action **Send an email** Send a transactional email through PostStack. - Action **Send broadcast** Start sending a broadcast to its recipients. - Action **Send emails in batch** Send up to 100 emails in a single request. - Action **Update a contact** Update an existing contact's fields. - Action **Update a template** Update an email template, creating a new version. - Action **Update email** Reschedule a queued email's send time. - Action **Validate email address** Check whether an email address is valid and deliverable. ## Each app on its own - [ **ActiveTrail** ActiveTrail is a marketing automation platform designed to help you maintain active relationships with...](https://apiant.ai/connections/activetrail) - [ **PostStack** EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics](https://apiant.ai/connections/poststack) Reviews ## What our customers say ## More from ActiveTrail - [ **ActiveTrail to WoopSocial** WoopSocial is a social media management platform that helps you manage multiple accounts, automate...](https://apiant.ai/connect/activetrail-to-woopsocial) - [ **ActiveTrail to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/activetrail-to-hubspot) - [ **ActiveTrail to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/activetrail-to-salesforce) - [ **ActiveTrail to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/activetrail-to-slack) - [ **ActiveTrail to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/activetrail-to-google-sheets) - [ **ActiveTrail to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/activetrail-to-gmail) ## More into PostStack - [ **HubSpot to PostStack** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-poststack) - [ **Google Sheets to PostStack** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-poststack) - [ **Gmail to PostStack** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-poststack) - [ **Google Calendar to PostStack** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-poststack) - [ **Google Drive to PostStack** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-poststack) - [ **Mailchimp to PostStack** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-poststack) Questions ## ActiveTrail and PostStack, answered ### ### What can start an automation from ActiveTrail? Any of ActiveTrail's 4 triggers in the catalog, including Contact Added to Group, Contact Removed From Group, Contact Updated and Contact Unsubscribed. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in PostStack when something happens in ActiveTrail? Any of PostStack's 31 actions, including Send an email, Send broadcast, Send emails in batch and Update a contact. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from PostStack to ActiveTrail? Yes. When something happens in PostStack, your agent can act in ActiveTrail too. This page covers both directions: PostStack's triggers and ActiveTrail's actions are listed here as well. ### ### Do I have to build a connector for ActiveTrail or PostStack? 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 ActiveTrail and PostStack 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.