--- title: "Let's Calendar integrations and MCP server - APIANT.ai" description: "Connect Let's Calendar to any other app, or use it from your AI client over MCP. Let's Calendar - Automate Sending mass calendar invites for your events &..." canonical: "https://apiant.ai/connections/let-s-calendar" --- # Let's Calendar integrations Connect Let's Calendar to any other app, or use it from your AI client over MCP. Let's Calendar - Automate Sending mass calendar invites for your events & webinars, and block recipients calendar automatically Connects with a token [letscalendar.com](https://letscalendar.com/) **2** triggers **17** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want to automate with Let's Calendar? 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) ### Grok Open grok.com/connectors, choose New Connector, then Custom, and paste the address. Grok signs you in in your browser. [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) Popular ## Let's Calendar with the apps people pair it with most - [ **HubSpot to Let's Calendar** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-let-s-calendar) - [ **Let's Calendar to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/let-s-calendar-to-salesforce) - [ **Let's Calendar to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/let-s-calendar-to-slack) - [ **Google Sheets to Let's Calendar** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-let-s-calendar) - [ **Gmail to Let's Calendar** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-let-s-calendar) - [ **Google Calendar to Let's Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-let-s-calendar) - [ **Google Drive to Let's Calendar** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-let-s-calendar) - [ **Let's Calendar to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/let-s-calendar-to-mailchimp) Pair it ## Connect Let's Calendar with another app - [ **HubSpot to Let's Calendar**](https://apiant.ai/connect/hubspot-to-let-s-calendar) - [ **Let's Calendar to Salesforce**](https://apiant.ai/connect/let-s-calendar-to-salesforce) - [ **Let's Calendar to Slack**](https://apiant.ai/connect/let-s-calendar-to-slack) - [ **Google Sheets to Let's Calendar**](https://apiant.ai/connect/google-sheets-to-let-s-calendar) - [ **Gmail to Let's Calendar**](https://apiant.ai/connect/gmail-to-let-s-calendar) - [ **Google Calendar to Let's Calendar**](https://apiant.ai/connect/google-calendar-to-let-s-calendar) - [ **Google Drive to Let's Calendar**](https://apiant.ai/connect/google-drive-to-let-s-calendar) - [ **Let's Calendar to Mailchimp**](https://apiant.ai/connect/let-s-calendar-to-mailchimp) - [ **Let's Calendar to Stripe**](https://apiant.ai/connect/let-s-calendar-to-stripe) - [ **Let's Calendar to Shopify**](https://apiant.ai/connect/let-s-calendar-to-shopify) - [ **Let's Calendar to QuickBooks Online**](https://apiant.ai/connect/let-s-calendar-to-quickbooks-online) - [ **Let's Calendar to Pipedrive**](https://apiant.ai/connect/let-s-calendar-to-pipedrive) - [ **ActiveCampaign to Let's Calendar**](https://apiant.ai/connect/activecampaign-to-let-s-calendar) - [ **Let's Calendar to Notion**](https://apiant.ai/connect/let-s-calendar-to-notion) - [ **Airtable to Let's Calendar**](https://apiant.ai/connect/airtable-to-let-s-calendar) - [ **Let's Calendar to Trello**](https://apiant.ai/connect/let-s-calendar-to-trello) - [ **Asana to Let's Calendar**](https://apiant.ai/connect/asana-to-let-s-calendar) - [ **JIRA to Let's Calendar**](https://apiant.ai/connect/jira-to-let-s-calendar) - [ **ClickUp to Let's Calendar**](https://apiant.ai/connect/clickup-to-let-s-calendar) - [ **Let's Calendar to Zoom**](https://apiant.ai/connect/let-s-calendar-to-zoom) - [ **Discord to Let's Calendar**](https://apiant.ai/connect/discord-to-let-s-calendar) - [ **Let's Calendar to Twilio**](https://apiant.ai/connect/let-s-calendar-to-twilio) - [ **Let's Calendar to SendGrid**](https://apiant.ai/connect/let-s-calendar-to-sendgrid) - [ **Let's Calendar to Outlook**](https://apiant.ai/connect/let-s-calendar-to-outlook) - [ **Intercom to Let's Calendar**](https://apiant.ai/connect/intercom-to-let-s-calendar) - [ **Freshdesk to Let's Calendar**](https://apiant.ai/connect/freshdesk-to-let-s-calendar) - [ **Klaviyo to Let's Calendar**](https://apiant.ai/connect/klaviyo-to-let-s-calendar) - [ **Brevo to Let's Calendar**](https://apiant.ai/connect/brevo-to-let-s-calendar) - [ **Let's Calendar to Typeform**](https://apiant.ai/connect/let-s-calendar-to-typeform) - [ **JotForm to Let's Calendar**](https://apiant.ai/connect/jotform-to-let-s-calendar) - [ **Calendly to Let's Calendar**](https://apiant.ai/connect/calendly-to-let-s-calendar) - [ **Let's Calendar to PandaDoc**](https://apiant.ai/connect/let-s-calendar-to-pandadoc) - [ **Let's Calendar to Webflow**](https://apiant.ai/connect/let-s-calendar-to-webflow) - [ **Let's Calendar to Wix**](https://apiant.ai/connect/let-s-calendar-to-wix) - [ **Let's Calendar to LinkedIn**](https://apiant.ai/connect/let-s-calendar-to-linkedin) - [ **Let's Calendar to Facebook**](https://apiant.ai/connect/let-s-calendar-to-facebook) - [ **Instagram to Let's Calendar**](https://apiant.ai/connect/instagram-to-let-s-calendar) - [ **Let's Calendar to OpenAI**](https://apiant.ai/connect/let-s-calendar-to-openai) - [ **Let's Calendar to Anthropic**](https://apiant.ai/connect/let-s-calendar-to-anthropic) - [ **Let's Calendar to OneDrive**](https://apiant.ai/connect/let-s-calendar-to-onedrive) - [ **Google Docs to Let's Calendar**](https://apiant.ai/connect/google-docs-to-let-s-calendar) - [ **Let's Calendar to Ontraport**](https://apiant.ai/connect/let-s-calendar-to-ontraport) - [ **Freshworks CRM to Let's Calendar**](https://apiant.ai/connect/freshworks-crm-to-let-s-calendar) - [ **GoHighLevel to Let's Calendar**](https://apiant.ai/connect/gohighlevel-to-let-s-calendar) - [ **Capsule CRM to Let's Calendar**](https://apiant.ai/connect/capsule-crm-to-let-s-calendar) - [ **Copper to Let's Calendar**](https://apiant.ai/connect/copper-to-let-s-calendar) - [ **Let's Calendar to Streak**](https://apiant.ai/connect/let-s-calendar-to-streak) - [ **Let's Calendar to NetHunt CRM**](https://apiant.ai/connect/let-s-calendar-to-nethunt-crm) - [ **Let's Calendar to MINDBODY**](https://apiant.ai/connect/let-s-calendar-to-mindbody) - [ **Let's Calendar to Supabase**](https://apiant.ai/connect/let-s-calendar-to-supabase) - [ **Let's Calendar to PostgreSQL**](https://apiant.ai/connect/let-s-calendar-to-postgresql) - [ **Let's Calendar to MySQL**](https://apiant.ai/connect/let-s-calendar-to-mysql) - [ **Let's Calendar to Vercel**](https://apiant.ai/connect/let-s-calendar-to-vercel) - [ **Let's Calendar to ElevenLabs**](https://apiant.ai/connect/let-s-calendar-to-elevenlabs) - [ **Let's Calendar to PagerDuty**](https://apiant.ai/connect/let-s-calendar-to-pagerduty) - [ **Let's Calendar to Pushover**](https://apiant.ai/connect/let-s-calendar-to-pushover) - [ **Gravity Forms to Let's Calendar**](https://apiant.ai/connect/gravity-forms-to-let-s-calendar) - [ **HubSpot Enterprise to Let's Calendar**](https://apiant.ai/connect/hubspot-enterprise-to-let-s-calendar) - [ **Google Forms to Let's Calendar**](https://apiant.ai/connect/google-forms-to-let-s-calendar) - [ **Facebook Lead Ads to Let's Calendar**](https://apiant.ai/connect/facebook-lead-ads-to-let-s-calendar) What your agent can do with Let's Calendar ## Triggers and actions 2 triggers · 17 actions - Trigger **New Campaign** Triggers when a new campaign is created in Let's Calendar. - Trigger **New Campaign Attendee** Triggers when a new attendee registers for a campaign. - Action **Add Multiple Contacts to Campaign** Adds several contacts to a campaign in one call. - Action **Add Registration to Campaign** Adds one contact (registration) to a campaign. - Action **Cancel Scheduled Invites** Cancels a campaign's scheduled calendar invites. - Action **Create Campaign** Creates a calendar invite campaign for an event. - Action **Delete Attendee** Removes an attendee from a campaign by their email address. - Action **Export Campaign Contacts** Exports a campaign's contacts and returns a link to the CSV file. - Action **Get Campaign** Returns a campaign's event details. - Action **Get Campaign List** Returns the account's campaigns, one page at a time. - Action **List Campaign Attendees** Returns the attendees registered for a campaign, one page at a time. - Action **List Senders** Returns the sender email accounts invites can be sent from. - Action **List Timezones** Returns the timezone names Let's Calendar accepts. - Action **Schedule Calendar Invites** Schedules a campaign's calendar invites to be sent at a later date and time. - Action **Send Calendar Invites** Sends a campaign's calendar invites to its attendees. - Action **Set Campaign Automation** Turns a campaign's automation on or off. - Action **Stop Campaign** Stops a campaign that is currently sending calendar invites. - Action **Update and Resend Calendar Invites** Sends updated calendar invites for a campaign to its attendees. - Action **Update Campaign** Updates a campaign's event details. Reviews ## What our customers say Questions ## Let's Calendar, answered ### ### Is there a Let's Calendar MCP server? APIANT's MCP server at https://mcp.apiant.ai works with Let's Calendar. Add that address to any AI client that takes a remote MCP server and sign in once in your browser. Your client can then run Let's Calendar actions on demand, or have APIANT build, test and run automations that use Let's Calendar. Nothing to install. ### ### What can start an automation from Let's Calendar? Any of Let's Calendar's 2 triggers in the catalog, including New Campaign and New Campaign Attendee. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Let's Calendar? Any of Let's Calendar's 17 actions, including Create Campaign, Send Calendar Invites, Update and Resend Calendar Invites and Update Campaign. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can I use Let's Calendar directly from Claude, ChatGPT or Cursor? Yes. Connect your AI client to APIANT once and it works with Let's Calendar two ways. Ask it to do something in Let's Calendar 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 on its own. A one-off action uses your plan's tasks the same way an automation step does. ### ### Do I need to write code against the Let's Calendar API? No. APIANT connects to the Let's Calendar API for you, with a token. Describe what you want in plain language and your agent builds it on the Let's Calendar triggers and actions in the catalog. If you need an endpoint that is not there yet, your agent reads the Let's Calendar API documentation and adds it. ### ### Which apps can Let's Calendar connect to? Any app in the catalog; the list on this page pairs Let's Calendar with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector. ### ### 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.