How to connect PayPal Zettle to Claude

Connect Claude Web, Desktop and Cowork to PayPal Zettle MCP. List products in your paypal zettle library, check low-stock paypal zettle inventory items, and more using natural language, with authentication handled for you.

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PayPal Zettle is a point-of-sale platform with APIs for products, inventory, purchases, and finance. It helps merchants manage store operations and sales data in one place.

55 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your PayPal Zettle account to Claude via Composio Connect, enabling it to list products in your PayPal Zettle library, check low-stock PayPal Zettle inventory items, review recent PayPal Zettle purchases, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate PayPal Zettle with

Connecting PayPal Zettle to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your PayPal Zettle account

Back in Claude, ask it to connect to PayPal Zettle or give it any PayPal Zettle-related task.

For example, ask Claude to:

  • "List products in your PayPal Zettle library"
  • "Check low-stock PayPal Zettle inventory items"
  • "Review recent PayPal Zettle purchases"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your PayPal Zettle account is ready to use.

What is the PayPal Zettle Claude Connector, and what's possible with it?

The PayPal Zettle MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your PayPal Zettle account. It provides structured and secure access to your product library, inventory, purchases, finance data, tax settings, and webhook subscriptions, so your agent can manage products and categories, track stock, review purchases and transactions, and configure discounts and tax rates on your behalf.

  • Product library management: Have your agent create, update, list, count, import, and delete products, categories, product images, discounts, and tax rates in your Zettle library.
  • Inventory and stock tracking: Let the agent list inventories, check product stock, review low-stock settings, and monitor inventory tracking across your stores.
  • Purchase and finance reporting: Direct your agent to retrieve purchases and refunds, list transactions within a date range, check account balances, and review payout information.
  • Tax and discount administration: Instruct your agent to retrieve tax settings, manage tax rates, create or remove discounts, and check how many products use each tax rate.
  • Webhook subscription management: Have your agent create and delete Zettle webhook subscriptions for selected events and retrieve the signing key needed to verify incoming messages.

Troubleshooting

1. Why does Claude not use the Composio connector for PayPal Zettle?

The connector can show as connected, but Claude must use it in each PayPal Zettle conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to PayPal Zettle again.

2. Why does Claude show an MCP server error before PayPal Zettle connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for PayPal Zettle.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect PayPal Zettle.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the PayPal Zettle authorization link not work?

The Composio connector is one server. Your PayPal Zettle account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the PayPal Zettle connection.
  • Composio creates a fresh PayPal Zettle authorization link.
  • Open that link in your browser and finish the PayPal Zettle sign-in.

4. Why do PayPal Zettle actions fail after they worked before?

The PayPal Zettle connection can expire or lose permission.

  • Ask Claude to inspect the PayPal Zettle connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the PayPal Zettle account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in PayPal Zettle.
  • If the action still fails with a permission error, check that the connected account has that permission in PayPal Zettle itself.

5. How do I switch to a different PayPal Zettle account?

Claude can manage the PayPal Zettle connection for you.

  • Ask Claude to disconnect or delete the current PayPal Zettle account.
  • Ask Claude to connect PayPal Zettle again.
  • Open the new Composio authorization link for PayPal Zettle.
  • Sign in with the other PayPal Zettle account in the browser.
  • After the account connects, ask Claude to retry the PayPal Zettle task.

6. Why is my PayPal Zettle connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your PayPal Zettle connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If PayPal Zettle tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect PayPal Zettle.
TOOLS

Supported Tools

Every PayPal Zettle action and event your agent gets out of the box.

Count Products

Retrieve the count of existing products for a merchant organization.

Count Products By Tax Rate

Get each tax rate and its associated product count.

Create Categories

Create one or more product categories in one request and return creation metadata.

Create Discount

Create a fixed-amount or percentage discount in a product library.

Create Inventory

Create one Zettle STORE inventory from its name and optional description.

Create Product

Create a product and up to 99 complete embedded variants.

Create Tax Rates

Create up to 15 tax rates in one request.

Create Webhook Subscription

Create a Zettle webhook subscription for selected events at a public HTTPS destination and return the signing key needed to verify incoming messages.

Delete Category

Permanently delete a category.

Delete Discount

Permanently delete one discount.

Delete Products

Permanently delete one or more products and their embedded variants.

Delete Tax Rate

Permanently delete one tax rate.

Delete Webhook Subscription

Permanently delete a Zettle webhook subscription.

Fetch Product Image

Fetch a product image by lookup key, optionally resizing, cropping, or converting it, and return a downloadable file.

Generate Product Slug

Create a unique online product slug from a product name.

Get Discount

Retrieve one discount from a merchant's product library.

Get Finance Balance

Get the balance of the merchant's preliminary or liquid Zettle account, optionally at a specified point in time.

Get Import Status

Return the latest product-library import status, or a specific import when import_uuid is provided.

Get Inventory

Fetch one inventory belonging to the connected Zettle organization.

Get Payout Info

Get the connected merchant's liquid-account payout balance, next payout amount, voucher discount balance, and payout schedule at a point in time.

Get Product

Retrieve one product and its complete embedded variants.

Get Product Library

Return one page of the complete product library or changes after an event-log UUID, including full products, embedded variants, and discounts.

Get Product Stock

Return one page of variant stock balances from the documented product- and inventory-specific Zettle endpoint, including low-stock settings and a continuation cursor.

Get Purchase

Fetch one immutable Zettle purchase or refund by its UUID version 1, including complete item, payment, discount, tax, and refund details.

Get Selected Products Stock

Return one page of product-variant stock balances for selected products in one Zettle inventory.

Get Tax Rate

Get one tax rate.

Get Tax Settings

Get organization tax settings and the organization UUID needed by other Zettle actions.

Get Tracking Status

Return inventory-tracking status for selected Zettle products.

Import Library Items

Start an asynchronous product import.

Import Product Images

Import one or more product images from HTTPS URLs and return their lookup keys.

List Categories

Retrieve all product categories for a merchant organization.

List Discounts

Retrieve all discounts from a merchant's product library.

List Finance Transactions

Return one page of transactions from a Zettle preliminary or liquid account within a required date range, optionally filtered by transaction type.

List Inventories

List the merchant organization's inventories and the UUIDs needed for stock-management actions.

List Inventory Stock

Return one page of product-variant stock balances from the documented inventory-specific Zettle endpoint, including low-stock settings and a continuation cursor.

List Library Images

Retrieve all image references used by library items.

List Product Options

Retrieve aggregate active variant options in the product library.

List Products

List all POS-visible products with complete embedded variants in the selected current or legacy representation.

List Purchases

Return one page of purchases and refunds from up to three years ago, with date and ordering filters plus an opaque continuation cursor.

List Stock

Return one page of variant stock balances across Zettle store inventories, optionally filtered by inventory or product.

List Stock Updates

Return one page of stock-balance updates made at or after a timestamp, optionally filtered to specific inventories, with a continuation cursor.

List Tax Rates

List the connected merchant's tax rates.

List Tracked Products

Return one page of UUIDs for Zettle products with inventory tracking enabled, with an opaque continuation cursor when more records are available.

List Tracking Updates

Return one page of product inventory-tracking status changes made at or after a timestamp, with a continuation cursor when more are available.

List Webhook Subscriptions

List all webhook subscriptions configured for a Zettle organization.

Move Inventory Stock

Atomically move product-variant quantities between inventories.

Set Inventory Tracking

Start or stop inventory tracking for one or more Zettle products.

Set Low Stock Levels

Set low-stock refill thresholds and Zettle Go alert settings for product variants across inventories.

Update Category

Rename a category.

Update Discount

Update selected fields of a discount using JSON merge-patch semantics, optionally guarded by its ETag.

Update Product

Replace a product using Zettle's full update contract.

Update Tax Rate

Update one tax rate.

Update Tax Settings

Update the organization's taxation mode.

Update Webhook Subscription

Change a Zettle webhook subscription's selected events, HTTPS destination, transport, or contact email.

Upload Product Image

Upload one GIF, JPEG, or PNG product image smaller than 5 MB and larger than 50 by 50 pixels.

FAQ

Frequently asked questions

With a standalone PayPal Zettle MCP server, the agents and LLMs can only access a fixed set of PayPal Zettle tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from PayPal Zettle and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right PayPal Zettle tools.

Yes, absolutely. You can configure which PayPal Zettle scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your PayPal Zettle data and credentials are handled as safely as possible.

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