> ## Documentation Index
> Fetch the complete documentation index at: https://docs.paperjoy.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Paperjoy documentation

> Send real handwritten postcards from the editor, Zapier, an AI assistant (MCP), or the REST API.

# Send handwritten postcards

A robot writes your message with a real pen, addresses the envelope by hand, and we mail it with Poczta Polska. You decide what to write and when to send. Everything else is on us.

[Quickstart](https://docs.paperjoy.co/en/getting-started/quickstart.md)
[How it works](https://docs.paperjoy.co/en/getting-started/introduction.md)

![A real Paperjoy postcard written in handwriting: Dear Anna, thank you for your first order!](https://mintcdn.com/paperjoy/F1MJj4Vyrx0MCZIR/images/postcards/card-font-1-en.webp?fit=max\&auto=format\&n=F1MJj4Vyrx0MCZIR\&q=85\&s=d30ca0c907f880a0e1249fc1e3c514f0)

## Choose how to send

Editor

Write a card by hand in the app, with a live preview.

[Open](https://docs.paperjoy.co/en/integrations/editor.md)

Zapier

Send a card when something happens in your CRM, shop, or form.

[Open](https://docs.paperjoy.co/en/integrations/zapier.md)

AI assistant

Let Claude or another MCP client write and send cards.

[Open](https://docs.paperjoy.co/en/integrations/mcp.md)

API

Create, preview, and track cards from your own code.

[Open](https://docs.paperjoy.co/en/getting-started/quickstart.md)

> [!NOTE]
>
> Paperjoy delivers to addresses in Poland. A live postcard costs one credit, postage included. Test mode and previews are free.

***

## Start here

<ol>
  <li>
    1
    [Create an account](https://paperjoy.co/register) and add your company by its NIP.
  </li>

  <li>
    2
    [Write your first card](https://docs.paperjoy.co/en/postcards/write.md) and see the handwriting preview.
  </li>

  <li>
    3
    [Try your integration in test mode](https://docs.paperjoy.co/en/getting-started/test-mode.md) without spending credits.
  </li>

  <li>
    4
    [Add credits](https://docs.paperjoy.co/en/account/credits-and-billing.md) and send your first real card.
  </li>
</ol>

[Sign with your own signature
Upload a scan once and every card is signed by you.](https://docs.paperjoy.co/en/postcards/custom-signatures.md)

[Follow a card to the mailbox
Every status from order to Poczta Polska.](https://docs.paperjoy.co/en/postcards/statuses.md)

[Preview before you order
Render the card as a PNG for free.](https://docs.paperjoy.co/en/postcards/preview.md)

[Handle errors safely
Status codes, retries, and rate limits.](https://docs.paperjoy.co/en/reference/errors-and-rate-limits.md)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.