--- title: "Connect Quaderno to Anthropic - APIANT.ai" description: "When \"New Contact\" fires in Quaderno, your agent runs \"Create message batch\" in Anthropic." canonical: "https://apiant.ai/connect/quaderno-to-anthropic" --- # Connect Quaderno to Anthropic When **New Contact** fires in [Quaderno](https://apiant.ai/connections/quaderno), your agent runs **Create message batch** in [Anthropic](https://apiant.ai/connections/anthropic). Describe the whole flow and it is built, tested on every scenario and kept running. Quaderno **3** triggers Quaderno **24** actions Anthropic **9** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Quaderno and Anthropic 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 Quaderno can start in Anthropic - When **New Contact** in Quaderno then **Create message batch** in Anthropic - When **New Invoice** in Quaderno then **Send model a message** in Anthropic 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 Quaderno and Anthropic ## Triggers and actions 3 triggers · 33 actions - Trigger **New Contact** Triggers when a new contact is created in Quaderno. - Trigger **New Invoice** Triggers when a new invoice is created in Quaderno. - Trigger **New Sale** Triggers when a new sale is recorded in Quaderno, i.e. a new invoice or receipt is created. - Action **Add invoice payment** Records a payment against a Quaderno invoice. When total payments reach the invoice amount, the invoice is marked as paid. - Action **Add product** Creates a new product in Quaderno that can be used as a line item on invoices, credit notes and expenses. - Action **Add receipt** Creates a paid receipt in Quaderno for a completed sale, with its customer, line items and payment method. - Action **Calculate tax rate** Calculates the tax rate and tax amount that applies to a sale for a given customer location and product type. - Action **Create Contact** Creates a new contact (customer or vendor) in Quaderno and returns the created contact. - Action **Create Estimate** Creates an estimate (proforma) in Quaderno for a customer, with line items, dates and notes. - Action **Create Expense** Creates an expense in Quaderno for a vendor, with its line items, and returns the new expense. - Action **Create Invoice** Creates an invoice for a customer with line items; optionally records full payment so the invoice is marked paid. - Action **Create Paid Invoice** Creates an invoice for a customer and records a full payment against it, so the invoice is marked paid. - Action **Create Sale** Records a sale in Quaderno, which calculates taxes and issues the matching invoice or receipt for the customer. - Action **Delete contact** Permanently deletes a contact (customer or vendor) from your Quaderno account. - Action **Find Contact** Finds contacts whose name, email or tax ID matches the search text, or whose payment-processor ID matches. - Action **Find Sale** Finds sales (invoices) by invoice number, customer name or PO number, payment processor transaction id, customer, state or issue date range, and returns the matches. - Action **Get contact** Returns a single Quaderno contact (customer or vendor) by its ID. - Action **Get Estimate** Returns a single estimate (proforma) by its id, including its number, customer, line items, taxes and totals. - Action **Get Expense** Returns the details of an existing expense in your Quaderno account. - Action **Get invoice** Returns a single invoice by its id, including number, contact, line items, taxes, totals and payments. - Action **Get product** Returns a single product (item) from your Quaderno account by its id, including its name, code, price and tax settings. - Action **Get Receipt** Returns a receipt by its id, including number, totals, taxes, contact and payment details. - Action **Update contact** Updates an existing Quaderno contact. Fields left blank keep their current values. - Action **Update invoice** Updates the editable fields of an existing invoice: PO number, tags, payment details, notes, custom metadata and billing address. - Action **Update product** Updates an existing product in Quaderno. Only the fields you fill in are changed. - Action **Validate tax ID** Checks whether a customer's tax ID (EU/UK VAT, ABN, NZBN, QST, Swiss UID) is valid and belongs to a real business. - Action **Void invoice** Voids an existing invoice in Quaderno and returns the voided invoice. - Action **Anthropic agent message** Runs one AI agent turn on Anthropic and returns the model's reply. The turn is billed to the Anthropic account connected on this step, and the agent can call the account's AI tool automations. - Action **Cancel message batch** Cancel a Message Batch that is still processing. - Action **Count tokens in a message** Count the number of input tokens a Messages API request would use, without creating the message. - Action **Create message batch** Submit a batch of Messages API requests for asynchronous processing. - Action **Get message batch** Retrieve the status and request counts of a Message Batch by id. - Action **Get model** Retrieve details for a specific Claude model by id. - Action **List message batches** List Message Batches in the workspace, most recently created first. - Action **List models** List the available Claude models, most recently released first. - Action **Send model a message** Send a message to a Claude model and return its response. Supports the full Messages API: model, system prompt, multi-turn messages, max_tokens, tools, and adaptive thinking. ## Each app on its own - [ **Quaderno** Quaderno is a tax software that handles sales tax, VAT, and GST for your online business.](https://apiant.ai/connections/quaderno) - [ **Anthropic** Anthropic builds Claude, a family of large language models.](https://apiant.ai/connections/anthropic) Reviews ## What our customers say ## More from Quaderno - [ **Quaderno to Hyperstack Certificates** Hyperstack helps you easily create and manage digital certificates & badges for your events or courses.](https://apiant.ai/connect/quaderno-to-hyperstack-certificates) - [ **Quaderno to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/quaderno-to-salesforce) - [ **Quaderno to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/quaderno-to-slack) - [ **Quaderno to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/quaderno-to-stripe) - [ **Quaderno to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/quaderno-to-shopify) - [ **Quaderno to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/quaderno-to-quickbooks-online) ## More into Anthropic - [ **HubSpot to Anthropic** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-anthropic) - [ **Salesforce to Anthropic** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-anthropic) - [ **Mailchimp to Anthropic** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-anthropic) - [ **Stripe to Anthropic** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/stripe-to-anthropic) - [ **Shopify to Anthropic** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/shopify-to-anthropic) - [ **QuickBooks Online to Anthropic** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/quickbooks-online-to-anthropic) Questions ## Quaderno and Anthropic, answered ### ### What can start an automation from Quaderno? Any of Quaderno's 3 triggers in the catalog, including New Contact, New Invoice and New Sale. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Anthropic when something happens in Quaderno? Any of Anthropic's 9 actions, including Create message batch, Send model a message, Anthropic agent message and Count tokens in a message. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Anthropic to Quaderno? Anthropic has no triggers in the catalog today, so automations start in Quaderno. If you need the other direction, ask: your agent reads Anthropic's API documentation and adds it. ### ### Do I have to build a connector for Quaderno or Anthropic? 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 Quaderno and Anthropic 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.