--- title: "Connect Clerk and Mailbox Power - APIANT.ai" description: "When \"New User\" fires in Clerk, your agent runs \"Create or Update Contact\" in Mailbox Power." canonical: "https://apiant.ai/connect/clerk-to-mailbox-power" --- # Connect Clerk and Mailbox Power When **New User** fires in [Clerk](https://apiant.ai/connections/clerk), your agent runs **Create or Update Contact** in [Mailbox Power](https://apiant.ai/connections/mailbox-power), or **New Contact Added to Group** in Mailbox Power to **Create User** in Clerk. Describe the whole flow and it is built, tested on every scenario and kept running. Clerk **1** trigger Clerk **6** actions Mailbox Power **2** triggers Mailbox Power **4** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Clerk and Mailbox Power 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 Clerk and Mailbox Power can do together ### From Clerk to Mailbox Power - When **New User** in Clerk then **Create or Update Contact** in Mailbox Power - When **New User** in Clerk then **List contacts** in Mailbox Power ### From Mailbox Power to Clerk - When **New Contact Added to Group** in Mailbox Power then **Create User** in Clerk - When **Updated Contact** in Mailbox Power then **Update User** in Clerk 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 Clerk and Mailbox Power ## Triggers and actions 3 triggers · 10 actions - Trigger **New User** Triggers when a new user is created in Clerk. - Action **Ban User** Ban a user, preventing them from signing in. - Action **Create Invitation** Invite a new user to the Clerk instance by email; they receive a sign-up link. - Action **Create User** Creates a new user in Clerk. - Action **Delete User** Deletes a user from Clerk. - Action **Unban User** Remove a ban on a user, restoring their ability to sign in. - Action **Update User** Updates an existing user in Clerk. - Trigger **New Contact Added to Group** Triggers when a contact is added to the selected Mailbox Power contact group. - Trigger **Updated Contact** Triggers when a contact in Mailbox Power is added or any of its details change. - Action **Create or Update Contact** Creates a contact in Mailbox Power, or updates the existing contact whose name and address match. - Action **Delete Contact** Deletes a contact from your Mailbox Power account. - Action **List contacts** Returns every contact in the Mailbox Power account, including address, contact details and group membership. - Action **Remove Contact From Group** Removes a contact from a Mailbox Power contact group. ## Each app on its own - [ **Clerk** Clerk is a user authentication and management platform that lets developers add sign-in, profiles, and...](https://apiant.ai/connections/clerk) - [ **Mailbox Power** Mailbox Power enables you to engage your customers and stay top of mind with your clients by sending...](https://apiant.ai/connections/mailbox-power) Reviews ## What our customers say ## More from Clerk - [ **Clerk to LinkedIn** LinkedIn is a professional networking platform enabling job seekers, companies, and thought leaders to...](https://apiant.ai/connect/clerk-to-linkedin) - [ **Clerk to Facebook** Facebook is a social media and advertising platform used by individuals and businesses to connect, share...](https://apiant.ai/connect/clerk-to-facebook) - [ **Clerk to Anthropic** Anthropic builds Claude, a family of large language models.](https://apiant.ai/connect/clerk-to-anthropic) - [ **Clerk to GoHighLevel** All-in-one sales and marketing platform agencies white-label and resell to their clients — contacts...](https://apiant.ai/connect/clerk-to-gohighlevel) - [ **Clerk to Supabase** Supabase is an open-source backend-as-a-service providing a Postgres database, authentication, storage, and...](https://apiant.ai/connect/clerk-to-supabase) - [ **Clerk to ElevenLabs** ElevenLabs is an AI audio research and deployment company.](https://apiant.ai/connect/clerk-to-elevenlabs) ## More into Mailbox Power - [ **HubSpot to Mailbox Power** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-mailbox-power) - [ **Google Sheets to Mailbox Power** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-mailbox-power) - [ **Gmail to Mailbox Power** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-mailbox-power) - [ **Google Calendar to Mailbox Power** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-mailbox-power) - [ **Google Drive to Mailbox Power** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-mailbox-power) - [ **ActiveCampaign to Mailbox Power** ActiveCampaign is a marketing automation, email marketing, and CRM platform.](https://apiant.ai/connect/activecampaign-to-mailbox-power) Questions ## Clerk and Mailbox Power, answered ### ### What can start an automation from Clerk? Any of Clerk's 1 trigger in the catalog, including New User. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Mailbox Power when something happens in Clerk? Any of Mailbox Power's 4 actions, including Create or Update Contact, List contacts, Delete Contact and Remove Contact From Group. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Mailbox Power to Clerk? Yes. When something happens in Mailbox Power, your agent can act in Clerk too. This page covers both directions: Mailbox Power's triggers and Clerk's actions are listed here as well. ### ### Do I have to build a connector for Clerk or Mailbox Power? 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 Clerk and Mailbox Power 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.