--- title: "Connect One Tap and PostStack - APIANT.ai" description: "When \"New Participant Check-in\" fires in One Tap, your agent runs \"Add a contact\" in PostStack." canonical: "https://apiant.ai/connect/one-tap-to-poststack" --- # Connect One Tap and PostStack When **New Participant Check-in** fires in [One Tap](https://apiant.ai/connections/one-tap), your agent runs **Add a contact** in [PostStack](https://apiant.ai/connections/poststack), or **Contact Updated (instant)** in PostStack to **Add Punch Pass** in One Tap. Describe the whole flow and it is built, tested on every scenario and kept running. One Tap **2** triggers One Tap **19** 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 One Tap 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 One Tap and PostStack can do together ### From One Tap to PostStack - When **New Participant Check-in** in One Tap then **Add a contact** in PostStack - When **New Profile** in One Tap then **Add contacts to segment** in PostStack ### From PostStack to One Tap - When **Contact Updated (instant)** in PostStack then **Add Punch Pass** in One Tap - When **New Contact (instant)** in PostStack then **Create List** in One Tap 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 One Tap and PostStack ## Triggers and actions 9 triggers · 50 actions - Trigger **New Participant Check-in** Triggered when a participant is checked in on a One Tap list. - Trigger **New Profile** Triggered when a new person profile is created in One Tap. - Action **Add Punch Pass** Creates a punch pass for a profile, giving them a set number of check-ins that can be redeemed over time. Returns the new punch pass. - Action **Check in participant** Checks in a participant on a One Tap list, recording the check-in time, location and method. Returns the updated participant. - Action **Check out participant** Checks out a participant on a One Tap list, recording the check-out time, location and method. Returns the updated participant. - Action **Create List** Creates a new list (event) in One Tap that people can be checked in to. Returns the new list. - Action **Create Participant** Adds a profile to a One Tap list as a participant, optionally recording a check-in or check-out at the same time. Returns the new participant. - Action **Delete List** Deletes a list (event) from One Tap. Returns the vendor's confirmation of the deletion. - Action **Delete Pass** Deletes a pass from One Tap so it can no longer be used to check in. Returns the vendor's confirmation of the deletion. - Action **Delete Profile** Deletes a person's profile from One Tap. Returns the vendor's confirmation of the deletion. - Action **Get List** Returns a single One Tap list (event) with its schedule, check-in settings and survey data. - Action **Get Lists** Returns the lists (events) in the One Tap account, with optional filtering by name, date range, type or parent list. - Action **Get Participants on List** Returns the participants on a One Tap list, with their check-in and check-out details. - Action **Get Passes** Returns the passes in the One Tap account, optionally limited to one profile, participant or pass type. - Action **Get Profile** Returns a single person's profile from One Tap, including the account's custom fields. - Action **Get Profile Passes** Returns the passes belonging to one person's profile in One Tap. - Action **Get Profiles** Returns the people profiles in the One Tap account, with optional search, favorite filtering and sorting. - Action **Redeem Punch Pass** Redeems one punch on a punch pass by linking it to a check-in. Returns the updated punch pass. - Action **Remove Participant** Removes a participant from a One Tap list. Returns the vendor's confirmation of the removal. - Action **Update List** Updates a One Tap list (event) — its name, dates, description and check-in settings. Only the values supplied are changed. Returns the updated list. - Action **Update Participant** Updates a participant's check-in and check-out details on a One Tap list. Only the values supplied are changed. Returns the updated participant. - 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 - [ **One Tap** OneTap offers a comprehensive attendance tracking solution ideal for educational institutions, events, and...](https://apiant.ai/connections/one-tap) - [ **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 One Tap - [ **One Tap to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/one-tap-to-google-sheets) - [ **One Tap to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/one-tap-to-salesforce) - [ **One Tap to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/one-tap-to-slack) - [ **One Tap to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/one-tap-to-stripe) - [ **One Tap to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/one-tap-to-shopify) - [ **One Tap to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/one-tap-to-quickbooks-online) ## 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 ## One Tap and PostStack, answered ### ### What can start an automation from One Tap? Any of One Tap's 2 triggers in the catalog, including New Participant Check-in and New Profile. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in PostStack when something happens in One Tap? 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 One Tap? Yes. When something happens in PostStack, your agent can act in One Tap too. This page covers both directions: PostStack's triggers and One Tap's actions are listed here as well. ### ### Do I have to build a connector for One Tap 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 One Tap 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.