--- title: "Connect Karbon and Polar - APIANT.ai" description: "When \"New work item\" fires in Karbon, your agent runs \"Create Customer\" in Polar, or \"Benefit Created\" in Polar to \"Create Organization Contact\" in Karbon." canonical: "https://apiant.ai/connect/karbon-to-polar" --- # Connect Karbon and Polar When **New work item** fires in [Karbon](https://apiant.ai/connections/karbon), your agent runs **Create Customer** in [Polar](https://apiant.ai/connections/polar), or **Benefit Created** in Polar to **Create Organization Contact** in Karbon. Describe the whole flow and it is built, tested on every scenario and kept running. Karbon **1** trigger Karbon **16** 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 Karbon 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 Karbon and Polar can do together ### From Karbon to Polar - When **New work item** in Karbon then **Create Customer** in Polar - When **New work item** in Karbon then **Add Subscription** in Polar ### From Polar to Karbon - When **Benefit Created** in Polar then **Create Organization Contact** in Karbon - When **Benefit Updated** in Polar then **Create Person Contact** in Karbon 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 Karbon and Polar ## Triggers and actions 22 triggers · 42 actions - Trigger **New work item** Triggers when a new work item is created in Karbon. - Action **Add client group** Creates a new client group in Karbon, optionally with members, owner, manager and client team. - Action **Add note** Creates a note in Karbon, optionally assigned to a user and linked to work items, contacts, organizations or client groups. - Action **Add work item** Creates a new work item for a client in Karbon. - Action **Create Organization Contact** Creates a new Organization contact in Karbon. - Action **Create Person Contact** Creates a new person Contact in Karbon and returns the created Contact record. - Action **Find an Organization Contact** Finds Organization contacts in Karbon matching a full name, email address, external key or contact type, and returns the matching organizations. - Action **Find a Person Contact** Finds person contacts in Karbon by email address, full name, phone number, contact type or external key, and returns the matches. - Action **Get work item** Returns the details of a single Karbon work item, including its client, dates, status, fee settings and role assignments. - Action **List invoices** Returns the invoices in your Karbon account, optionally filtered by invoice status and sorted. - Action **List timesheets** Returns a list of timesheets from your Karbon account, optionally filtered by date, user, work item or status, with their time entries if requested. - Action **List users** Returns the users in your Karbon account, optionally filtered by name or email address. - Action **List work items** Returns the work items in your Karbon account, optionally filtered and sorted. - Action **Update client group** Renames an existing Karbon client group by changing its full name. - Action **Update Organization Contact** Updates the name or privacy level of an existing Organization contact in Karbon. - Action **Update Person Contact** Updates the name details or privacy level of an existing Person Contact in Karbon. - Action **Update work item** Updates a Karbon work item's title, description, dates, assignee, work type, role assignments or status. Fields left blank are not changed. - 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 - [ **Karbon** Karbon is the collaborative practice management platform for accounting firms.](https://apiant.ai/connections/karbon) - [ **Polar** Polar is a modern billing platform for developers & designers.](https://apiant.ai/connections/polar) Reviews ## What our customers say ## More from Karbon - [ **Karbon to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/karbon-to-salesforce) - [ **Karbon to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/karbon-to-slack) - [ **Karbon to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/karbon-to-mailchimp) - [ **Karbon to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/karbon-to-stripe) - [ **Karbon to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/karbon-to-shopify) - [ **Karbon to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/karbon-to-quickbooks-online) ## 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 ## Karbon and Polar, answered ### ### What can start an automation from Karbon? Any of Karbon's 1 trigger in the catalog, including New work item. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Polar when something happens in Karbon? 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 Karbon? Yes. When something happens in Polar, your agent can act in Karbon too. This page covers both directions: Polar's triggers and Karbon's actions are listed here as well. ### ### Do I have to build a connector for Karbon 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 Karbon 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.