# Quaderno API Documentation

This is the complete API documentation for connecting to the Quaderno API using MindCloud's Universal API.

MindCloud offers one normalized API to access 3,400+ apps from a single place. It centralizes authentication and normalizes app APIs so they are easier and more consistent to use.

## Quickstart

1. A **MindCloud account** — sign in or create an account at [MindCloud](https://app.mindcloud.co).
2. A **MindCloud API Key** — create one in [API Keys](https://app.mindcloud.co/user/api-keys). Keep it on your server.
3. At least one **Quaderno connection** — create or choose one in [Connections](https://app.mindcloud.co/credentials). Note its `connectionId`.

```text
POST https://connect.mindcloud.co/v2/universal/apps/quaderno/actions/{actionSlug}/run
```

## Quaderno actions

- POST `create-contact` Create Contact
- POST `create-credit-note` Create Credit Note
- POST `create-invoice` Create Invoice
- POST `create-product` Create Product
- POST `create-receipt` Create Receipt
- POST `create-recurring-document` Create Recurring Document
- POST `create-tax-id` Create Tax ID
- DELETE `delete-contact` Delete Contact
- DELETE `delete-product` Delete Product
- GET `deliver-invoice` Deliver Invoice
- GET `deliver-receipt` Deliver Receipt
- GET `list-contacts` List Contacts
- GET `list-credit-notes` List Credit Notes
- GET `list-invoices` List Invoices
- GET `list-products` List Products
- GET `list-receipts` List Receipts
- GET `list-recurring-documents` List Recurring Documents
- GET `list-tax-codes` List Tax Codes
- GET `list-tax-ids` List Tax IDs
- PUT `mark-invoice-uncollectible` Mark Invoice Uncollectible
- POST `record-invoice-payment` Record Invoice Payment
- GET `retrieve-contact` Retrieve Contact
- GET `retrieve-invoice` Retrieve Invoice
- GET `retrieve-product` Retrieve Product
- GET `retrieve-receipt` Retrieve Receipt
- PUT `update-contact` Update Contact
- PUT `update-invoice` Update Invoice
- PUT `update-product` Update Product
- GET `validate-tax-id` Validate Tax ID