--- title: "Connect Kit and Polar - APIANT.ai" description: "When \"New Form Subscriber\" fires in Kit, your agent runs \"Create Customer\" in Polar, or \"Benefit Created\" in Polar to \"Add Subscriber to Form\" in Kit." canonical: "https://apiant.ai/connect/kit-to-polar" --- # Connect Kit and Polar When **New Form Subscriber** fires in [Kit](https://apiant.ai/connections/kit), your agent runs **Create Customer** in [Polar](https://apiant.ai/connections/polar), or **Benefit Created** in Polar to **Add Subscriber to Form** in Kit. Describe the whole flow and it is built, tested on every scenario and kept running. Kit **7** triggers Kit **7** actions Polar **21** triggers Polar **26** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Kit and Polar 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 Kit and Polar can do together ### From Kit to Polar - When **New Form Subscriber** in Kit then **Create Customer** in Polar - When **New Purchase** in Kit then **Add Subscription** in Polar ### From Polar to Kit - When **Benefit Created** in Polar then **Add Subscriber to Form** in Kit - When **Benefit Updated** in Polar then **Add Tag to Subscriber** in Kit 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 Kit and Polar ## Triggers and actions 28 triggers · 33 actions - Trigger **New Form Subscriber** Triggers when a subscription occurs on a specific form. - Trigger **New Purchase** Triggers when a new purchase is added to your account. - Trigger **New Sequence Subscriber** Triggers when a subscriber is added to a sequence. - Trigger **New Subscriber** Triggers when a new subscriber is confirmed within your account (has completed any applicable double opt-ins). - Trigger **New Unsubscribe** Triggers when a subscriber unsubscribes from your emails. - Trigger **Subscriber Added to Tag** Triggers when a specific tag is added to a subscriber. - Trigger **Tag Removed From Subscriber** Triggers when a specific tag is removed from a subscriber. - Action **Add Subscriber to Form** Subscribe someone to a specific form. - Action **Add Tag to Subscriber** Add a subscriber to a specific tag. - Action **Create or Update Subscriber** Creates a Kit subscriber, or updates the first name and custom fields of an existing subscriber with the same email address. Returns the subscriber. - Action **Find Subscriber** Finds an existing confirmed subscriber by email. - Action **Get Subscriber** Returns one Kit subscriber by ID, with their name, email address, state and custom field values. - Action **List Tags for Subscriber** Lists the tags on a Kit subscriber, with each tag's ID, name and the date it was applied. - Action **Remove Tag From Subscriber** Remove a specific tag from a subscriber if they have it. - Trigger **Benefit Created** Triggered when a new benefit is created in Polar. - Trigger **Benefit Updated** Triggered when a benefit is changed in Polar. - Trigger **Checkout Created** Triggered when a new checkout session is created in Polar. - Trigger **Checkout Expired** Triggered when a checkout session expires in Polar without being paid. - Trigger **Checkout Updated** Triggered when a checkout session changes in Polar, for example when it is confirmed or paid. - Trigger **Customer Created** Triggered when a new customer is created in Polar. - Trigger **Customer Deleted** Triggered when a customer is deleted in Polar. - Trigger **Customer State Changed** Triggered when a customer's state changes in Polar - their active subscriptions, granted benefits or meters. - Trigger **Customer Updated** Triggered when a customer's details change in Polar. - Trigger **Order Created** Triggers when a new order is placed in your Polar organization. - Trigger **Order Paid** Triggers when an order in your Polar organization is paid. - Trigger **Order Updated** Triggers when an order in your Polar organization changes. - Trigger **Product Created** Triggers when a new product is created in your Polar organization. - Trigger **Product Updated** Triggers when a product in your Polar organization changes. - Trigger **Subscription Active** Triggers when a subscription in your Polar organization becomes active. - Trigger **Subscription Canceled** Triggers when a customer cancels a subscription in your Polar organization. - Trigger **Subscription Created** Triggers when a new subscription is created in your Polar organization. - Trigger **Subscription Past Due** Triggers when a subscription in your Polar organization falls past due because a payment failed. - Trigger **Subscription Revoked** Triggers when a subscription in your Polar organization is revoked and the customer loses access. - Trigger **Subscription Uncanceled** Triggers when a customer reverses a pending cancellation and keeps a subscription in your Polar organization. - Trigger **Subscription Updated** Triggers when a subscription in your Polar organization changes. - Action **Add Subscription** Subscribes a customer to a free recurring product. - Action **Confirm Checkout Session** Completes an open checkout session so Polar creates the order. Works without payment only when the checkout needs none, for example a free product. - Action **Create Benefit** Creates a benefit in Polar that you can attach to products. - Action **Create Checkout Session** Creates a Polar checkout session for a product and returns the link the customer pays through. - Action **Create Customer** Creates a customer in Polar. - Action **Create Discount** Creates a discount in Polar, either a percentage off or a fixed amount off. - Action **Create Product** Creates a product in Polar with its price or prices. - Action **Delete Customer** Deletes a customer in Polar. Their subscriptions are cancelled and their benefits revoked. - Action **Get Checkout Session** Returns one Polar checkout session by its id, including its status and payment link. - Action **Get Customer** Returns one customer from Polar by their id, including any metadata you stored on them. - Action **Get Product** Returns one product from Polar by its id, with its prices and attached benefits. - Action **Get Subscription** Returns one subscription from Polar by its id, with its status, amount and current period. - Action **List Benefits** Returns a page of benefits from Polar. - Action **List Checkout Sessions** Returns a page of checkout sessions from Polar. - Action **List Customers** Returns a page of customers from Polar. - Action **List Discounts** Returns the discount codes set up in your Polar organization, newest first. You can narrow the list by organization or by name text, and page through the results. - Action **List Orders** Returns the orders placed in your Polar organization. You can narrow the list by product, customer, subscription, checkout, discount or status, and page through the results. - Action **List Products** Returns the products in your Polar organization, with their prices and benefits. You can narrow the list by name text, archived state, one-time versus subscription, or a benefit, and page through the results. - Action **List Subscriptions** Returns the subscriptions in your Polar organization. You can narrow the list by product, customer, discount, active state or status, and page through the results. - Action **Revoke Subscription** Cancels a Polar subscription immediately, ending the customer's access right away rather than at the end of the billing period. - Action **Update Benefit** Changes a benefit's description, visibility, settings or metadata. - Action **Update Checkout Session** Changes an open checkout session: buyer details, product, amount, metadata or redirect links. - Action **Update Customer** Updates an existing Polar customer. Only the fields you fill in are changed; anything left blank keeps its current value. - Action **Update Order** Changes the billing name or billing address shown on an order's invoice. - Action **Update Product** Updates an existing Polar product. Only the fields you fill in are changed; anything left blank keeps its current value. - Action **Update Subscription** Changes an existing Polar subscription — switch its product, apply a discount, adjust seats, move the trial end, or schedule or reverse a cancellation. Only the fields you fill in are changed. ## Each app on its own - [ **Kit** Kit is an email marketing platform for professional bloggers.](https://apiant.ai/connections/kit) - [ **Polar** Polar is a modern billing platform for developers & designers.](https://apiant.ai/connections/polar) Reviews ## What our customers say ## More from Kit - [ **Kit to Webflow** Webflow is a professional website builder and CMS for designing, building, and launching responsive...](https://apiant.ai/connect/kit-to-webflow) - [ **Kit to API Snap** Free utility API platform. QR codes, screenshots, PDFs, image resize, hashing, and more](https://apiant.ai/connect/kit-to-api-snap) - [ **Kit to Clay** Clay is a simple spreadsheet interface, yet powerful automation platform that allows you to build internal...](https://apiant.ai/connect/kit-to-clay) - [ **Kit to Clerk** Clerk is a user authentication and management platform that lets developers add sign-in, profiles, and...](https://apiant.ai/connect/kit-to-clerk) - [ **Kit to GDBrowser** GDBrowser is a readable HTTP wrapper over the Geometry Dash game servers.](https://apiant.ai/connect/kit-to-gdbrowser) - [ **Kit to PostLake** One API to publish, schedule, and read analytics across every major social network](https://apiant.ai/connect/kit-to-postlake) ## More into Polar - [ **Outlook to Polar** Outlook is Microsoft's email and calendaring platform integrating contacts and scheduling, enabling users to...](https://apiant.ai/connect/outlook-to-polar) - [ **Fillout Forms to Polar** Create powerful forms, surveys and quizzes your audience will answer with Fillout Forms.](https://apiant.ai/connect/fillout-forms-to-polar) - [ **Gallabox to Polar** Gallabox is no-code conversation workspace for business to grow sales](https://apiant.ai/connect/gallabox-to-polar) - [ **OutageDeck to Polar** OutageDeck aggregates the official status feeds of more than 170 cloud and SaaS providers into one place.](https://apiant.ai/connect/outagedeck-to-polar) - [ **HubSpot to Polar** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-polar) - [ **Google Sheets to Polar** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-polar) Questions ## Kit and Polar, answered ### ### What can start an automation from Kit? Any of Kit's 7 triggers in the catalog, including New Form Subscriber, New Purchase, New Sequence Subscriber and New Subscriber. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Polar when something happens in Kit? Any of Polar's 26 actions, including Create Benefit, Create Checkout Session, Create Customer and Create Discount. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Polar to Kit? Yes. When something happens in Polar, your agent can act in Kit too. This page covers both directions: Polar's triggers and Kit's actions are listed here as well. ### ### Do I have to build a connector for Kit or Polar? 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 Kit and Polar 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.