Prototype · Preview: every server in the official registry, synced every 30 minutes. Reviews and accounts come in a later step.
PopNx MCPMCP servers for people who use AI · explained in plain words

Zettle MCP by usefulapi

by m190version 1.4.3i★ –iRuns in the cloud
Registry nameio.usefulapi/zettle

Install

Overview

Description from the maker (original English)

Read sales, products, stock, balance and payouts; create products in Zettle.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Install

Pick the AI app you use, then copy the settings.

Before you install

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://zettle.usefulapi.io/mcp

Run this in your terminal

claude mcp add --transport http zettle https://zettle.usefulapi.io/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "zettle": {
      "url": "https://zettle.usefulapi.io/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "zettle": {
      "type": "http",
      "url": "https://zettle.usefulapi.io/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://zettle.usefulapi.io/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

  • zettle_get_account

    The Zettle user and organization this API key belongs to (uuid, organizationUuid). GET oauth.zettle.com/users/self.

  • zettle_list_purchases

    List POS purchases (sales and refunds) with amount, currency, timestamp, products, discounts, payments, refund info and the cashier. Needs READ:PURCHASE. Amounts are in the smallest currency unit. Default window is the last 3 years. Page with next_page_hash (pass it back as last_

  • zettle_get_purchase

    One purchase (sale or refund) in full by its purchase UUID (the purchaseUUID1 field of zettle_list_purchases; the older short purchaseUUID is deprecated and not accepted): line items, VAT, payments, refund links. Needs READ:PURCHASE. GET /purchase/v2/{purchaseUuid}.

  • zettle_list_products

    List the products in the POS product library with variants (SKU, barcode, price, cost price, VAT), category, online status and ETag. Zettle returns the whole library at once; this tool slices it with limit/offset and filters by name. Needs READ:PRODUCT. Prices are in the smallest

  • zettle_get_product

    One product by UUID with all variants, prices, VAT, category, images and online-store data. Needs READ:PRODUCT. GET /organizations/self/products/{productUuid}.

  • zettle_list_categories

    List the product categories (uuid, name). Needs READ:PRODUCT. GET /organizations/self/categories/v2.

  • zettle_get_library

    The product library together with its discounts (name, amount or percentage), paginated. Returns products, discounts and next_offset (pass it back as offset). Needs READ:PRODUCT. GET /organizations/self/library.

  • zettle_create_product

    WRITE: add a new product to the Zettle product library (it appears in the POS and, if enabled, the online store). Not idempotent: calling twice creates two products. Needs READ:PRODUCT and WRITE:PRODUCT. vat_percentage must be one of the VAT rates enabled in the merchant's Zettle

  • zettle_list_inventories

    List the stock locations (inventories): inventoryUuid, name, type (STORE, SOLD, SUPPLIER, BIN) and which is the default. Use the STORE inventoryUuid with zettle_get_stock. Needs READ:PRODUCT. GET /v3/inventories.

  • zettle_get_stock

    Stock balances per product variant (balance, low-stock level and alert, last update). With inventory_uuid: that STORE inventory only; without: all stores. Only products with inventory tracking enabled appear. Needs READ:PRODUCT. Page with next_cursor. GET /v3/stock or /v3/stock/{

  • zettle_get_stock_for_products

    Stock balances of a few specific products in one inventory (read-only lookup, nothing is changed). Needs READ:PRODUCT. Page with next_cursor (send the same product_uuids again). POST /v3/stock/{inventoryUuid}/products with the product UUIDs.

  • zettle_get_account_balance

    The merchant's Zettle account balance (totalBalance in the smallest currency unit, currencyId). LIQUID = money available for payout; PRELIMINARY = payments not yet settled. Optional point in time. Needs READ:FINANCE. GET /v2/accounts/{LIQUID|PRELIMINARY}/balance.

  • zettle_list_account_transactions

    Transactions (payments, fees, payouts, adjustments) in the LIQUID or PRELIMINARY account between start and end (end exclusive), with timestamp, amount (smallest currency unit, can be negative), type and originating transaction UUID. Needs READ:FINANCE. Page with next_offset. GET

  • zettle_get_payout_info

    Payout information of the LIQUID account: totalBalance, currencyId, nextPayoutAmount, discountRemaining and payout periodicity. Needs READ:FINANCE. GET /v2/payout-info.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 104 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 14 tool descriptions and found no hidden instructions to the AI

Compared with others in Otheri

  • More stars than 0% of the other 32410 servers in this category
  • Published to the registry more recently than 97% of the other 32410 servers in this category
  • Basic checks equal to or better than 100% of the other 32410 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Zettle MCP by usefulapi safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.4.3) reached the registry yesterday.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, debuff

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago
Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday
Install

debuff

by debuffjp

Let coding agents play, test and tune your 2D web game: live state, explained errors, replays, fuzz.

Runs on your computerUpdated today
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Zettle MCP by usefulapi

Use your Zettle account from Claude, Cursor, or any MCP client. Read sales, refunds, products, stock, balance and payouts, and create products. Hosted, no local install: connect with your own credentials.

Live endpoint: https://zettle.usefulapi.io/mcp · Homepage: https://usefulapi.io

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://zettle.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http zettle https://zettle.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
{

"mcpServers": { "zettle": { "url": "https://zettle.usefulapi.io/mcp" } } }

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and you sign in with your Zettle account.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/zettle/

On first connect you sign in to Zettle and approve access. Only the Zettle account owner can approve it. You can disconnect it any time in Zettle. No keys go in config files.

Tools

ToolTypeWhat it does
zettle_get_accountreadGet account
zettle_list_purchasesreadList purchases
zettle_get_purchasereadGet purchase
zettle_list_productsreadList products
zettle_get_productreadGet product
zettle_list_categoriesreadList categories
zettle_get_libraryreadGet product library with discounts
zettle_create_productwriteCreate product
zettle_list_inventoriesreadList inventories (stock locations)
zettle_get_stockreadGet stock balances
zettle_get_stock_for_productsreadGet stock for products
zettle_get_account_balancereadGet account balance
zettle_list_account_transactionsreadList account transactions
zettle_get_payout_inforeadGet payout info
zettle_usage_statusmetaUsage status (free-tier meter)
zettle_request_featuremetaRequest a missing feature
zettle_upgrademetaUpgrade to Pro or Pro+
zettle_cancel_subscriptionmetaCancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

PlanPriceLimit
Free$050 tool calls / month
Pro (per user)$9/mo or $90/yr (2 months free)Unlimited*

\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.

Pro covers this server only. Subscribe with zettle_upgrade (it returns a Stripe Checkout link). Cancel any time with zettle_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running zettle_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

License

MIT — see LICENSE. Documentation only; the server is hosted.

Ask PopNx