--- title: "Connect Poptin and PostStack - APIANT.ai" description: "When \"New Contact\" fires in Poptin, your agent runs \"Add a contact\" in PostStack." canonical: "https://apiant.ai/connect/poptin-to-poststack" --- # Connect Poptin and PostStack When **New Contact** fires in [Poptin](https://apiant.ai/connections/poptin), your agent runs **Add a contact** in [PostStack](https://apiant.ai/connections/poststack), or **Contact Updated (instant)** in PostStack to **Update contact status** in Poptin. Describe the whole flow and it is built, tested on every scenario and kept running. Poptin **2** triggers Poptin **31** 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 Poptin 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 Poptin and PostStack can do together ### From Poptin to PostStack - When **New Contact** in Poptin then **Add a contact** in PostStack - When **New Lead** in Poptin then **Add contacts to segment** in PostStack ### From PostStack to Poptin - When **Contact Updated (instant)** in PostStack then **Update contact status** in Poptin - When **New Contact (instant)** in PostStack then **Create preference** in Poptin 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 Poptin and PostStack ## Triggers and actions 9 triggers · 62 actions - Trigger **New Contact** Triggers when a new contact is added to your Poptin contact list. - Trigger **New Lead** Triggers when a visitor submits a Poptin form, creating a new lead (conversion). - Action **Campaign Analytics** See how your email campaigns performed overall in a date range (sends, opens, clicks, bounces) - the same metrics as a single campaign, rolled up. - Action **Create preference** Add a new subscription preference topic (name and optional description) that contacts can be opted into. **423** if the account is locked for processing. - Action **Delete campaign** Permanently delete a campaign you no longer need. Campaigns that are `sending` or `queued` cannot be deleted (**422**). Allowed while under review. Returns **204** with no body. - Action **Delete contact** Permanently remove one contact by public id (`uid`). For many deletions, prefer **Bulk delete contacts (JSON)**. Returns **204** with no body. **423** if the account is locked for processing. - Action **Delete conversion** Remove lead personal details from a conversion while the row may be kept for aggregate stats. Returns **204**. **423** if the account is locked for processing. - Action **Delete poptin** Soft-delete a popup/form (recoverable by support for a limited time). A/B versions are reassigned as in the dashboard. Returns **204**. **423** if the account is locked for processing. - Action **Delete preference** Remove a subscription preference topic you no longer offer. Contacts lose this preference association. **423** if the account is locked for processing. - Action **Delete property** Remove a custom property you no longer need. Built-in/default properties cannot be deleted (**406**). **423** if the account is locked for processing. - Action **End campaign** Mark a `paused` campaign as `completed` so it will not continue sending - use this to close out a send early. Ending an already `completed` campaign is a no-op (**200**). **422** for other statuses or when the campaign is under review. - Action **List campaigns** Browse email campaigns on your account (with optional name/status filters) so you can find a campaign to inspect or control. Paginated (`per_page` default **10**, max **100**). - Action **List contacts** Browse and search people on your contact list so you can sync a CRM, audit who is subscribed, or find a contact before updating them. - Action **List conversions** Browse leads and actions captured from your popups/forms so you can sync them to another system or review recent activity. - Action **List poptins** Browse your popups and forms with per-Poptin aggregate metrics so you can rank performers or find a Poptin to inspect. - Action **List preferences** List subscription preference topics on your account so you can build a preference center or map topic ids when syncing contacts. Paginated (`per_page` default **50**, max **100**). - Action **List properties** List the contact fields available on your account so you can map forms or syncs to the right keys. Paginated (`per_page` default **50**, max **100**). - Action **Pause campaign** Temporarily stop a campaign that is currently `sending` or `queued` - for example while you fix content or list issues. Pausing an already `paused` campaign is a no-op (**200**). **422** for other statuses or when the campaign is under review. - Action **Pause poptin** Turn off an active popup/form so it stops showing on your site. Pausing an already `inactive` poptin is a no-op (**200**). **422** for statuses that cannot be paused (for example `draft`). - Action **Poptin Analytics** See account-wide popup and form results for a time period - visitors, views, conversions, growth, and rates - the same overview style numbers you would check in the dashboard. - Action **Refresh poptin stats** Ask Poptin to recompute popup/form aggregate stats when the cached overview looks stale. - Action **Rename poptin** Change the display name of a popup/form. Name must be 2–256 characters and unique on the account (**422** if taken). - Action **Resume campaign** Continue a `paused` campaign, or retry one that entered an `error` state. Resuming an already `sending`, `queued`, or `scheduled` campaign is a no-op (**200**), except when under review (**422**). **422** for other statuses or when the campaign is under review. - Action **Resume poptin** Turn an inactive popup/form back on. Resuming an already `active` poptin is a no-op (**200**). **422** for statuses that cannot be resumed (for example `draft`). - Action **Show bulk job status** Poll a background bulk job until `status` is `done` or `failed`. Requires `object_id` and `object_name` from the **202** response of a queuing operation. - Action **Show campaign** Get one campaign by public id (`uid`), including its delivery status and performance statistics (sends, opens, clicks, bounces, and rates). A/B campaigns also include `ab`, `ab_test_percentage`, and per-variant details (`type`, `has_body`, headers). During an active A/B test, top-level `subject` / ` - Action **Show contact** Get one contact by public id (`uid`), including field values, tags, preferences, and subscription status - useful before an update or to verify a sync. - Action **Show conversion** Get one conversion by public id (`uid`) - for example to fetch full lead details after a webhook or list sync. Pass `include=extra_fields` to resolve submitted input fields. - Action **Show poptin** Get one popup or form by public id (`uid`) with its aggregate metrics. A/B parents include nested versions; A/B versions include the parent’s identity and metrics. - Action **Show preference** Get one preference topic by public id (`uid`). Pass `include=contacts_count` when you need how many contacts currently have this preference. - Action **Show property** Get one contact property, including its type and options, so you can map forms or syncs to the right field. - Action **Update contact status** Change only a contact’s subscription status (for example subscribe, unsubscribe, or mark as bounced) without rewriting their other fields. - Action **Update preference** Update a preference topic without changing which contacts are opted in. **423** if the account is locked for processing. - 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 - [ **Poptin** Poptin is a free lead capture platform that lets you create engaging web and mobile popups and improve your...](https://apiant.ai/connections/poptin) - [ **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 Poptin - [ **Poptin to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/poptin-to-salesforce) - [ **Poptin to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/poptin-to-slack) - [ **Poptin to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/poptin-to-stripe) - [ **Poptin to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/poptin-to-shopify) - [ **Poptin to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/poptin-to-quickbooks-online) - [ **Poptin to Trello** Trello is a visual collaboration tool that organizes projects into boards, lists, and cards.](https://apiant.ai/connect/poptin-to-trello) ## 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 ## Poptin and PostStack, answered ### ### What can start an automation from Poptin? Any of Poptin's 2 triggers in the catalog, including New Contact and New Lead. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in PostStack when something happens in Poptin? 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 Poptin? Yes. When something happens in PostStack, your agent can act in Poptin too. This page covers both directions: PostStack's triggers and Poptin's actions are listed here as well. ### ### Do I have to build a connector for Poptin 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 Poptin 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.