# Connect CryptAPI and Quaderno When **Payment received (instant)** fires in [CryptAPI](https://apiant.ai/connections/cryptapi), your agent runs **Add invoice payment** in [Quaderno](https://apiant.ai/connections/quaderno), or **New Contact** in Quaderno to **Create payment address** in CryptAPI. Describe the whole flow and it is built, tested on every scenario and kept running. CryptAPI **1** trigger CryptAPI **7** actions Quaderno **3** triggers Quaderno **24** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want CryptAPI and Quaderno to do together? Give your AI client this address. `https://mcp.apiant.ai` 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 CryptAPI and Quaderno can do together ### From CryptAPI to Quaderno - When **Payment received (instant)** in CryptAPI then **Add invoice payment** in Quaderno - When **Payment received (instant)** in CryptAPI then **Create Contact** in Quaderno ### From Quaderno to CryptAPI - When **New Contact** in Quaderno then **Create payment address** in CryptAPI - When **New Invoice** in Quaderno then **Generate payment QR code** in CryptAPI 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 CryptAPI and Quaderno ## Triggers and actions 4 triggers · 31 actions - Trigger **Payment received (instant)** Fires when a payment address created via Create payment address receives funds; CryptAPI calls the callback URL supplied at creation time with the payment details. - Action **Convert price** Convert a value between a fiat currency and a cryptocurrency, or between two cryptocurrencies, for a given ticker. - Action **Create payment address** Generate a new cryptocurrency payment address for a given ticker (e.g. btc, eth, trc20/usdt) that a customer can send funds to, with a callback URL for payment notifications. - Action **Estimate blockchain fees** Estimate the blockchain network fee to forward a transaction to a wallet address, for a given cryptocurrency ticker. - Action **Generate payment QR code** Generate a base64-encoded QR code image for a payment address, for a given cryptocurrency ticker. - Action **Get payment address logs** Get the callback/payment activity log for a previously created payment address, for a given ticker. - Action **Get ticker info** Get details (minimum transaction amount, fees, current price) for a specific cryptocurrency ticker. - Action **List supported cryptocurrencies** List all cryptocurrencies and blockchains supported by CryptAPI, with logos, minimum transaction amounts, and fee tiers. - 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. ## Each app on its own - [ **CryptAPI** CryptAPI is a non-custodial cryptocurrency payment processor that generates payment addresses and forwards...](https://apiant.ai/connections/cryptapi) - [ **Quaderno** Quaderno is a tax software that handles sales tax, VAT, and GST for your online business.](https://apiant.ai/connections/quaderno) Reviews ## What our customers say ## More from CryptAPI - [ **CryptAPI to RD Station** RD Station is a complete digital marketing platform to help you generate more results in traffic generation...](https://apiant.ai/connect/cryptapi-to-rd-station) - [ **CryptAPI to SLF** SLF is a German-language geographic reference service covering cities, countries, and rivers.](https://apiant.ai/connect/cryptapi-to-slf) - [ **CryptAPI to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/cryptapi-to-hubspot) - [ **CryptAPI to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/cryptapi-to-salesforce) - [ **CryptAPI to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/cryptapi-to-slack) - [ **CryptAPI to Google Sheets** Google Sheets](https://apiant.ai/connect/cryptapi-to-google-sheets) ## More into Quaderno - [ **HubSpot to Quaderno** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-quaderno) - [ **Google Sheets to Quaderno** Google Sheets](https://apiant.ai/connect/google-sheets-to-quaderno) - [ **Gmail to Quaderno** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-quaderno) - [ **Google Calendar to Quaderno** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-quaderno) - [ **Google Drive to Quaderno** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-quaderno) - [ **Mailchimp to Quaderno** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-quaderno) Questions ## CryptAPI and Quaderno, answered ### ### What can start an automation from CryptAPI? Any of CryptAPI's 1 trigger in the catalog, including Payment received (instant). Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Quaderno when something happens in CryptAPI? Any of Quaderno's 24 actions, including Create Contact, Create Estimate, Create Expense and Create Invoice. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Quaderno to CryptAPI? Yes. When something happens in Quaderno, your agent can act in CryptAPI too. This page covers both directions: Quaderno's triggers and CryptAPI's actions are listed here as well. ### ### Do I have to build a connector for CryptAPI or Quaderno? 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. ### ### 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.