--- title: "Connect OnceHub to MailRush.io - APIANT.ai" description: "When \"Booking Completed\" fires in OnceHub, your agent runs \"Add contact\" in MailRush.io." canonical: "https://apiant.ai/connect/oncehub-to-mailrush-io" --- # Connect OnceHub to MailRush.io When **Booking Completed** fires in [OnceHub](https://apiant.ai/connections/oncehub), your agent runs **Add contact** in [MailRush.io](https://apiant.ai/connections/mailrush-io). Describe the whole flow and it is built, tested on every scenario and kept running. OnceHub **15** triggers OnceHub **17** actions MailRush.io **2** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want OnceHub and MailRush.io 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 OnceHub can start in MailRush.io - When **Booking Completed** in OnceHub then **Add contact** in MailRush.io - When **Contact Updated** in OnceHub then **Unsubscribe a Contact From a Campaign** in MailRush.io 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 OnceHub and MailRush.io ## Triggers and actions 15 triggers · 19 actions - Trigger **Booking Canceled** Triggers when a OnceHub booking is canceled by the customer or by someone on your team. - Trigger **Booking Cancelled and Rescheduled** Triggers when a customer cancels a OnceHub booking and then reschedules it on a different booking page. - Trigger **Booking Completed** Triggers when a OnceHub booking's end time has passed and the meeting is marked completed. - Trigger **Booking Lifecycle Event** Triggers on any OnceHub booking event — scheduled, rescheduled, reassigned, canceled, completed or no-show — with the event name included so you can branch on it. - Trigger **Booking No-Show** Triggers when a OnceHub booking is marked as a no-show. - Trigger **Booking Rescheduled** Triggers when a OnceHub booking is rescheduled to a new time. - Trigger **Booking Scheduled** Triggers when a new OnceHub booking is scheduled. - Trigger **Contact Captured** Triggers when a new contact is captured in OnceHub. - Trigger **Contact Lifecycle Event** Triggers whenever a OnceHub contact is created or changed, so you catch the whole contact lifecycle in one place. - Trigger **Contact Updated** Triggers when an existing OnceHub contact is updated. - Trigger **Conversation Abandoned** Triggers when a website visitor stops replying to a OnceHub chatbot for more than ten minutes and the conversation is abandoned. - Trigger **Conversation Closed** Triggers when a OnceHub chatbot conversation is closed. - Trigger **Conversation Lifecycle Event** Triggers on any OnceHub conversation event — started, closed or abandoned — with the event name included so you can branch on it. - Trigger **Conversation Started** Triggers when a website visitor sends their first message to a OnceHub chatbot and a conversation starts. - Trigger **Reassigned Booking** Triggers when a OnceHub booking is reassigned to a different host. - Action **Cancel Booking** Cancels a OnceHub booking, optionally with a reason and without emailing the customer. - Action **Create Contact** Creates a new contact in OnceHub. Give at least an email address or a mobile number. - Action **Create One-Time Booking Link** Creates a one-time booking link for a published OnceHub booking calendar, optionally prefilling the booking form and pinning the host or duration. - Action **Delete Contact** Deletes a contact from OnceHub. - Action **Find Contact** Finds a OnceHub contact by email address. - Action **Get Available Time Slots** Returns the open meeting times on a OnceHub booking calendar for the window you choose. - Action **Get Booking Calendar** Returns one OnceHub booking calendar with its host, public link and meeting length. - Action **Get Booking Details** Returns one OnceHub booking with its time, customer details and booking form answers. - Action **Get Contact** Returns one OnceHub contact with its details and custom fields. - Action **Get Contact's Future Meetings** Returns a contact's upcoming OnceHub meetings — the bookings that start after the time you give. - Action **List Booking Calendars** Lists the booking calendars in your OnceHub account. - Action **List Bookings** Lists OnceHub bookings, with optional filters for status, contact, host, calendar and date range. - Action **List Contacts** Lists the contacts in your OnceHub account, with optional email and date filters. - Action **Mark Booking as No-Show** Marks a OnceHub booking as a no-show. - Action **Reassign Booking** Reassigns a OnceHub booking to a different host, optionally naming the video conferencing service to use. - Action **Request Reschedule** Asks the customer to pick a new time for a OnceHub booking, optionally telling them why. - Action **Update Contact** Updates an existing OnceHub contact. Only the fields you fill in are changed; anything left blank keeps its current value. - Action **Add contact** Create a contact and assign to a tag (auto-created). - Action **Unsubscribe a Contact From a Campaign** Unsubscribes (opts out) a contact by email across your MailRush.io organization, which stops campaign sends to them. ## Each app on its own - [ **OnceHub** Capture, qualify, and engage with inbound leads using ScheduleOnce, ChatOnce, FormOnce and SubmitOnce.](https://apiant.ai/connections/oncehub) - [ **MailRush.io** Export email events and export contact details of prospect that have triggered a tracking event from...](https://apiant.ai/connections/mailrush-io) Reviews ## What our customers say ## More from OnceHub - [ **OnceHub to HeadshotPro** HeadshotPro is an AI Headshot Generator for Professional Headshots.](https://apiant.ai/connect/oncehub-to-headshotpro) - [ **OnceHub to Honeyhive** Observability and evaluation platform for tracing, testing, and monitoring AI agents in production.](https://apiant.ai/connect/oncehub-to-honeyhive) - [ **OnceHub to Powerlink** Cloud-based CRM platform (formerly Powerlink) for managing customer data, sales, and business workflows.](https://apiant.ai/connect/oncehub-to-powerlink) - [ **OnceHub to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/oncehub-to-hubspot) - [ **OnceHub to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/oncehub-to-salesforce) - [ **OnceHub to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/oncehub-to-slack) ## More into MailRush.io - [ **HubSpot to MailRush.io** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-mailrush-io) - [ **Salesforce to MailRush.io** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-mailrush-io) - [ **Slack to MailRush.io** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-mailrush-io) - [ **Google Sheets to MailRush.io** Google Sheets](https://apiant.ai/connect/google-sheets-to-mailrush-io) - [ **Gmail to MailRush.io** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-mailrush-io) - [ **Google Calendar to MailRush.io** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-mailrush-io) Questions ## OnceHub and MailRush.io, answered ### ### What can start an automation from OnceHub? Any of OnceHub's 15 triggers in the catalog, including Booking Completed, Contact Updated, Booking Lifecycle Event and Booking No-Show. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in MailRush.io when something happens in OnceHub? Any of MailRush.io's 2 actions, including Add contact and Unsubscribe a Contact From a Campaign. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from MailRush.io to OnceHub? MailRush.io has no triggers in the catalog today, so automations start in OnceHub. If you need the other direction, ask: your agent reads MailRush.io's API documentation and adds it. ### ### Do I have to build a connector for OnceHub or MailRush.io? 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 OnceHub and MailRush.io 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.