--- title: "Connect PostStack and Smily - APIANT.ai" description: "When \"Contact Updated (instant)\" fires in PostStack, your agent runs \"Add payment\" in Smily." canonical: "https://apiant.ai/connect/poststack-to-smily" --- # Connect PostStack and Smily When **Contact Updated (instant)** fires in [PostStack](https://apiant.ai/connections/poststack), your agent runs **Add payment** in [Smily](https://apiant.ai/connections/smily), or **New And/Or Updated Client** in Smily to **Add a contact** in PostStack. Describe the whole flow and it is built, tested on every scenario and kept running. PostStack **7** triggers PostStack **31** actions Smily **4** triggers Smily **19** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want PostStack and Smily 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 PostStack and Smily can do together ### From PostStack to Smily - When **Contact Updated (instant)** in PostStack then **Add payment** in Smily - When **New Contact (instant)** in PostStack then **Create or Update Client** in Smily ### From Smily to PostStack - When **New And/Or Updated Client** in Smily then **Add a contact** in PostStack - When **New And/Or Updated Payment** in Smily then **Add contacts to segment** in PostStack 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 PostStack and Smily ## Triggers and actions 11 triggers · 50 actions - 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. - Trigger **New And/Or Updated And/Or Canceled Booking** Trigger when a booking is created and/or updated and/or canceled (with line item support). - Trigger **New And/Or Updated Client** Trigger when a client is created and/or updated (with line item support). - Trigger **New And/Or Updated Payment** Trigger when a payment is created and/or updated. - Trigger **New Inquiry** Trigger when a new inquiry is created. - Action **Add booking** Creates a booking (reservation, tentative hold or unavailable block) on a rental's calendar in Smily. - Action **Add payment** Records a new payment against a booking in Smily. - Action **Add rental** Creates a new rental property in your Smily account. Note that each rental added increases the account's monthly fee. - Action **Create Inquiry** Creates an inquiry for a rental, recording a guest's contact details, requested dates and message. - Action **Create or Update Client** Creates a new Smily client (guest), or updates an existing one when a client ID is given. - Action **Delete booking** Cancels a booking in Smily so it no longer occupies the rental's calendar. - Action **Find Bookings in Date Range** Returns the bookings that overlap a date range, optionally filtered by status, rental or client. - Action **Find Client by Email** Finds Smily clients (guests) whose email address matches the one given, returning the matching client records. - Action **Find Payment** Finds payments by their order ID (one or more, comma-separated). - Action **Get booking** Returns a single booking (reservation) by its ID, including dates, status, guest counts, pricing and linked rental and client. - Action **Get client** Returns a single client (guest) by ID, including their addresses, emails and phone numbers. - Action **Get rental** Returns a single rental (property) by its ID, including its details, pricing, location and related record IDs. - Action **List bookings** Returns the bookings in your Smily account, optionally filtered by dates, status, rental, client or last update time. By default only future, non-canceled bookings are returned. - Action **List clients** Returns the clients (guests) in your Smily account, including their addresses, emails and phone numbers. - Action **List inquiries** Returns the inquiries on your Smily account, including guest contact details, requested dates and party size. - Action **List payments** Returns the payments recorded on your Smily account, optionally filtered by order ID. - Action **List rentals** Returns the rentals (properties) in your Smily account, with their names, locations, capacity and pricing details. - Action **Update Booking** Updates an existing booking (reservation) in Smily — dates, guest counts, prices, deposit, notes, tags and status flags — and returns the updated booking. - Action **Update rental** Updates an existing rental property in Smily. Only the fields you fill in are changed. ## Each app on its own - [ **PostStack** EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics](https://apiant.ai/connections/poststack) - [ **Smily** Smily, top property management software for Short-Term Rental Managers and Concierges.](https://apiant.ai/connections/smily) Reviews ## What our customers say ## More from PostStack - [ **PostStack to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/poststack-to-salesforce) - [ **PostStack to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/poststack-to-slack) - [ **PostStack to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/poststack-to-stripe) - [ **PostStack to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/poststack-to-shopify) - [ **PostStack to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/poststack-to-quickbooks-online) - [ **PostStack to Trello** Trello is a visual collaboration tool that organizes projects into boards, lists, and cards.](https://apiant.ai/connect/poststack-to-trello) ## More into Smily - [ **HubSpot to Smily** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-smily) - [ **Salesforce to Smily** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-smily) - [ **Slack to Smily** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-smily) - [ **Google Sheets to Smily** Google Sheets](https://apiant.ai/connect/google-sheets-to-smily) - [ **Gmail to Smily** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-smily) - [ **Google Calendar to Smily** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-smily) Questions ## PostStack and Smily, answered ### ### What can start an automation from PostStack? Any of PostStack's 7 triggers in the catalog, including Contact Updated (instant), New Contact (instant), New Inbound Email and New Sent Email (instant). Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Smily when something happens in PostStack? Any of Smily's 19 actions, including Create Inquiry, Create or Update Client, Update Booking and Update rental. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Smily to PostStack? Yes. When something happens in Smily, your agent can act in PostStack too. This page covers both directions: Smily's triggers and PostStack's actions are listed here as well. ### ### Do I have to build a connector for PostStack or Smily? 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 PostStack and Smily 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.