How to connect PayPal Zettle with ChatGPT

Connect ChatGPT 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

How to connect PayPal Zettle MCP with ChatGPT

ChatGPT can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.

In this guide, I will explain the easiest and most secure way to connect your PayPal Zettle account to ChatGPT via Composio Connect, so it can manage products, check inventory, review purchases, access finance data, and manage webhooks through natural language commands without ever putting your account credentials at risk.

Also integrate PayPal Zettle with

Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's PayPal Zettle integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account. We will use the ChatGPT desktop app, and the steps are the same on the web.
  • Access to the PayPal Zettle workspace you want to connect.
  • Composio plugin.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect PayPal Zettle to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.

2. Authenticate

After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.

Composio login and Allow access screen for ChatGPT

3. Start using Composio

That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread PayPal Zettle messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize PayPal Zettle.

Option 2: Add Composio as an MCP server

If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.

1. Open the MCP settings

In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting PayPal Zettle

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

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
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. ChatGPT 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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