--- title: "Connect CalendarLink and eSputnik - APIANT.ai" description: "When \"New Upcoming Event\" fires in CalendarLink, your agent runs \"Send Event\" in eSputnik, or \"New Contact\" in eSputnik to \"List Contacts\" in CalendarLink." canonical: "https://apiant.ai/connect/calendarlink-to-esputnik" --- # Connect CalendarLink and eSputnik When **New Upcoming Event** fires in [CalendarLink](https://apiant.ai/connections/calendarlink), your agent runs **Send Event** in [eSputnik](https://apiant.ai/connections/esputnik), or **New Contact** in eSputnik to **List Contacts** in CalendarLink. Describe the whole flow and it is built, tested on every scenario and kept running. CalendarLink **1** trigger CalendarLink **8** actions eSputnik **2** triggers eSputnik **12** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want CalendarLink and eSputnik 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 CalendarLink and eSputnik can do together ### From CalendarLink to eSputnik - When **New Upcoming Event** in CalendarLink then **Send Event** in eSputnik - When **New Upcoming Event** in CalendarLink then **Add contact to segment** in eSputnik ### From eSputnik to CalendarLink - When **New Contact** in eSputnik then **List Contacts** in CalendarLink - When **New Contact in Segment** in eSputnik then **Create New Event** in CalendarLink 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 CalendarLink and eSputnik ## Triggers and actions 3 triggers · 20 actions - Trigger **New Upcoming Event** Triggered when a new upcoming event is added to your CalendarLink organisation. - Action **Create New Event** Creates an event in a CalendarLink collection and returns its add-to-calendar link. Times use the format 2026-09-01 09:00:00. Optionally turns on RSVP with a deadline, attendee limit and notification settings. - Action **Find Event** Searches your CalendarLink events for one whose title contains the text you give, and returns the first match with its add-to-calendar link, times and RSVP counts. - Action **List Contacts** Returns a page of the contacts in your CalendarLink organisation, 15 per page, along with how many pages there are. - Action **List Event Collections** Returns every event collection in your CalendarLink organisation, with each collection's ID, name, description, public link and event count. - Action **List Event Registrations** Returns a page of the people who signed up for one CalendarLink event, 15 per page. The event must have RSVP turned on. - Action **List Past Events** Returns a page of your CalendarLink events that have already finished, 15 per page, newest first. - Action **List Upcoming Events** Returns a page of your CalendarLink events that have not happened yet, 15 per page. - Action **Update Event Collection** Changes the settings of one CalendarLink event collection — its name, description, appearance, what visitors can add and whether sign-up is required. Only the fields you fill in are changed; the rest keep their current values. - Trigger **New Contact** Triggered when a new contact is created in eSputnik, optionally limited to contacts matching the details you enter. - Trigger **New Contact in Segment** Triggers when a contact is added to the eSputnik segment you choose. - Action **Add contact to segment** Adds one or more contacts to a static segment in eSputnik, identified by contact IDs or external customer IDs. - Action **Add emails to unsubscribed list** Adds one or more email addresses to the eSputnik list of unsubscribed contacts. - Action **Add/Update Contact** Adds a new contact or updates the existing matching contact, including its channels, address and additional fields, and returns the contact's ID. - Action **Delete contact** Deletes a contact by its eSputnik contact ID, optionally erasing all of the contact's data permanently. - Action **Delete contact from segment** Removes one or more contacts from a static segment, identified by their eSputnik contact IDs or external customer IDs. - Action **Find contacts** Returns up to 500 contacts that match the specified external ID, email address, phone number, first name or last name. - Action **Get contact** Returns an eSputnik contact by ID, including its channels, address, segments and additional field values. An error occurs if the contact is not found. - Action **List segments** Returns the contact segments in the eSputnik account, optionally narrowed by name, with each segment's id, name and type. - Action **Send Email** Sends an email message to one or more recipients. A new contact is created for any address that does not already exist in eSputnik. - Action **Send Event** Sends a backend event for a contact to eSputnik, where it can start workflows and supply dynamic content for messages. - Action **Send Viber message** Sends a Viber message to a list of phone numbers or to a segment, and returns the queueing result for each recipient. A new contact is created for a phone number that does not exist yet. - Action **Subscribe Contact** Subscribes a contact through a double opt-in flow, creating an unconfirmed contact if none exists or updating the existing one, and returns the contact's ID and email subscription status. ## Each app on its own - [ **CalendarLink** CalendarLink creates add-to-calendar links to any calendar service and make sure your users don't forget...](https://apiant.ai/connections/calendarlink) - [ **eSputnik** ESputnik is a marketing automation service made to embody the toughest ideas of enterprise level solutions...](https://apiant.ai/connections/esputnik) Reviews ## What our customers say ## More from CalendarLink - [ **CalendarLink to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/calendarlink-to-stripe) - [ **CalendarLink to PandaDoc** PandaDoc helps you build and deliver sales quotes and proposals and track presentations and close deals...](https://apiant.ai/connect/calendarlink-to-pandadoc) - [ **CalendarLink to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/calendarlink-to-hubspot) - [ **CalendarLink to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/calendarlink-to-salesforce) - [ **CalendarLink to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/calendarlink-to-slack) - [ **CalendarLink to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/calendarlink-to-google-sheets) ## More into eSputnik - [ **ActiveCampaign to eSputnik** ActiveCampaign is a marketing automation, email marketing, and CRM platform.](https://apiant.ai/connect/activecampaign-to-esputnik) - [ **Airtable to eSputnik** Organize anything with Airtable, a modern database created for everyone.](https://apiant.ai/connect/airtable-to-esputnik) - [ **Asana to eSputnik** Asana is a collaborative information manager for workspace.](https://apiant.ai/connect/asana-to-esputnik) - [ **ClickUp to eSputnik** ClickUp is an all-in-one app to plan, track, and manage your work in a beautifully intuitive environment.](https://apiant.ai/connect/clickup-to-esputnik) - [ **Discord to eSputnik** Discord is an all-in-one voice and text chat for gamers.](https://apiant.ai/connect/discord-to-esputnik) - [ **Brevo to eSputnik** Brevo is the leading CRM suite designed to cultivate long-term customer relationships and help businesses...](https://apiant.ai/connect/brevo-to-esputnik) Questions ## CalendarLink and eSputnik, answered ### ### What can start an automation from CalendarLink? Any of CalendarLink's 1 trigger in the catalog, including New Upcoming Event. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in eSputnik when something happens in CalendarLink? Any of eSputnik's 12 actions, including Send Email, Send Event, Send Viber message and Add contact to segment. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from eSputnik to CalendarLink? Yes. When something happens in eSputnik, your agent can act in CalendarLink too. This page covers both directions: eSputnik's triggers and CalendarLink's actions are listed here as well. ### ### Do I have to build a connector for CalendarLink or eSputnik? 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 CalendarLink and eSputnik 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.