Lemon Squeezy MCP server

MCP server for Lemon Squeezy — stores, products, orders, subscriptions, license keys. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.

Connect Lemon SqueezyFree 50 tool calls / monthPro $9/mo · $90/yr · pricing22 tools

What can I ask?

Turn on the Lemon Squeezy connector, then ask in plain words. The AI picks the tools.

What you can do with Lemon Squeezy in Claude and ChatGPT

For sellers of software and digital products who run a store on Lemon Squeezy.

Find all orders from one buyer

The AI lists orders filtered by store and buyer email, finds the customer, and opens an order to read its details.

Review active and cancelled subscriptions

The AI lists subscriptions filtered by store, status, product, variant, customer or buyer email, and opens one to read it.

Check subscription invoices by status or refund

The AI lists subscription invoices filtered by store, status or refunded flag, so you see which invoices were refunded or have a problem.

Find the license keys of an order or product

The AI lists license keys filtered by store, order or product, so you can check which keys were issued for a customer's order.

Create a payment link for a product variant

The AI looks up the store, product and variant and creates a hosted checkout. You get the shareable payment link.

Changes data

Change, pause or cancel a subscription

The AI changes the plan (variant), pauses or unpauses, sets the billing anchor, or cancels a live subscription at the end of the billing period.

Changes data

How do I connect Lemon Squeezy?

Before you connect

The login page asks for your Lemon Squeezy API key.

Find it in Lemon Squeezy → Settings → API. Your key is used only to call the API on your behalf and to derive a private account id; it is never shown to anyone.

Claude claude.ai · Desktop

  1. Open Customize → Connectors, then click + Add → Add custom connector.
  2. Enter the name Lemon Squeezy and this URL, then click Add:
    https://lemonsqueezy.usefulapi.io/mcp
  3. Claude opens the login page: enter your Lemon Squeezy API key.
  4. In a chat, click + → Connectors and turn on Lemon Squeezy.

Team and Enterprise: an Owner adds the connector for the organization first.

ChatGPT chatgpt.com

  1. Open Plugins, click +, then Add custom MCP server.
  2. Enter the name Lemon Squeezy and this URL, choose OAuth as the authentication, confirm the warning and create it:
    https://lemonsqueezy.usefulapi.io/mcp
  3. ChatGPT opens the login page: enter your Lemon Squeezy API key.
  4. In Plugins, install Lemon Squeezy, then choose it in a chat.

No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.

Claude Code

Run this command, then run /mcp in Claude Code to log in:

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

Cursor

Add to Cursor or add this to ~/.cursor/mcp.json:

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

VS Code

Add to VS Code or add this to .vscode/mcp.json:

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

Codex

Run these commands. The second one opens the login page:

codex mcp add lemonsqueezy --url https://lemonsqueezy.usefulapi.io/mcp
codex mcp login lemonsqueezy

Other clients

Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.

https://lemonsqueezy.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: the login page asks for your Lemon Squeezy API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

Pricing

PlanPriceLimit
Free$050 tool calls / month
Pro$9/mo · $90/yr10,000 tool calls / month
Pro+$39/mo · $390/yr100,000 tool calls / month

Each paid plan covers this Lemon Squeezy server only. Ask your AI to run lemonsqueezy_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with lemonsqueezy_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with lemonsqueezy_upgrade before then undoes the cancel. Or write to [email protected].

Tools 22

Show all 22 tools (the AI picks them for you)

Read only · 15

  • Get authenticated userlemonsqueezy_get_user
    Get the currently authenticated user/account behind the API key. Good first call to confirm auth.
  • List storeslemonsqueezy_list_stores
    List all stores in the account.
  • Get a storelemonsqueezy_get_store
    Get a single store by id.
  • List productslemonsqueezy_list_products
    List products, optionally filtered to one store. API: GET /products (filter[store_id]).
  • List variantslemonsqueezy_list_variants
    List variants (price/plan tiers), optionally filtered to one product. API: GET /variants (filter[product_id]).
  • List priceslemonsqueezy_list_prices
    List price models, optionally filtered to one variant. API: GET /prices (filter[variant_id]).
  • List customerslemonsqueezy_list_customers
    List customers, optionally filtered by store and/or email. API: GET /customers (filter[store_id], filter[email]).
  • Get a customerlemonsqueezy_get_customer
    Get a single customer by id.
  • List orderslemonsqueezy_list_orders
    List orders, optionally filtered by store and/or buyer email. API: GET /orders (filter[store_id], filter[user_email]).
  • Get an orderlemonsqueezy_get_order
    Get a single order by id.
  • List subscriptionslemonsqueezy_list_subscriptions
    List subscriptions with rich filtering by store, status, product, variant, customer, or buyer email. API: GET /subscriptions (filter[store_id], filter[status], filter[product_id], filter[variant_id], filter[customer_id], filter[user_email]).
  • Get a subscriptionlemonsqueezy_get_subscription
    Get a single subscription by id.
  • List subscription invoiceslemonsqueezy_list_subscription_invoices
    List subscription invoices, optionally filtered by store, status, or refunded flag. API: GET /subscription-invoices (filter[store_id], filter[status], filter[refunded]).
  • List license keyslemonsqueezy_list_license_keys
    List license keys, optionally filtered by store, order, or product. API: GET /license-keys (filter[store_id], filter[order_id], filter[product_id]).
  • List discountslemonsqueezy_list_discounts
    List discounts, optionally filtered to one store. API: GET /discounts (filter[store_id]).

Changes data · 3

  • Create checkoutlemonsqueezy_create_checkout
    WRITE: Create a hosted checkout / payment link for a store + variant. Returns the created checkout including its `url` (the shareable payment link).
  • Update subscriptionlemonsqueezy_update_subscription
    WRITE: Modify a LIVE subscription — change plan/tier (variant_id), cancel, pause/unpause, or set the billing anchor. This affects a real customer's billing.
  • Cancel subscriptionlemonsqueezy_cancel_customer_subscription
    WRITE: Cancel a LIVE subscription. It remains active until the end of the current billing period, then moves to `cancelled`. This affects a real customer.

Your usefulapi plan · 4

  • Usage status (free-tier meter)lemonsqueezy_usage_status
    Report the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter.
  • Request a missing featurelemonsqueezy_request_feature
    Tell usefulapi that the user needs something the Lemon Squeezy tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter.
  • Upgrade to Pro or Pro+lemonsqueezy_upgrade
    Get a paid plan for Lemon Squeezy (the free tier caps monthly usage). Pro: 10,000 tool calls a month, for normal use — plan "monthly" ($9/month) or "yearly" ($90/year, 2 months free). Pro+: 100,000 tool calls a month, for automations and heavy use — plan "plus" ($39/month) or "plus_yearly" ($390/year). Without a plan it returns both Pro and Pro+, each with a payment link, for the user to choose; with a plan, one link. An existing Pro subscription changes to Pro+ in place (needs confirm: true; the price difference for the rest of the period is charged at once). Cancel any time: the plan then runs to the end of the paid period, so it also suits a one-time job. A link opens Stripe Checkout in the browser; after payment the account upgrades automatically. Does not count against the meter.
  • Cancel the Pro subscriptionlemonsqueezy_cancel_subscription
    Cancel the caller's Lemon Squeezy Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run lemonsqueezy_upgrade later to undo the cancel before the period ends. Does not count against the meter.

FAQ

What can I do with Lemon Squeezy in Claude or ChatGPT?

Find all orders from one buyer. Review active and cancelled subscriptions. Check subscription invoices by status or refund. Find the license keys of an order or product. Create a payment link for a product variant. Change, pause or cancel a subscription. See what you can do for the details.

Is this an official Lemon Squeezy product?

No. usefulapi is an independent service. It is not affiliated with or endorsed by Lemon Squeezy. The server calls the Lemon Squeezy API with your own Lemon Squeezy access, so it sees only the data that your account can see.

Can I connect Lemon Squeezy to Claude or ChatGPT?

Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.

What do I need to connect?

The login page asks for your Lemon Squeezy API key. See Before you connect for where to find it.

Do I put my Lemon Squeezy key or an Authorization header in the client config?

No. 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: the login page asks for your Lemon Squeezy API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

How do you keep my Lemon Squeezy credentials?

The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Lemon Squeezy API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Lemon Squeezy.

Can the AI change my Lemon Squeezy data?

Yes, if you approve it. 3 of the 18 Lemon Squeezy tools can create or change data. The other 15 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.

What does it cost?

The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this Lemon Squeezy server only. Cancel any time: your paid plan then runs to the end of the paid period. Run lemonsqueezy_usage_status to see how many calls you used.

How do I subscribe or cancel?

Ask the AI to run lemonsqueezy_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run lemonsqueezy_cancel_subscription. Your paid plan continues to the end of the paid period.

What if a Lemon Squeezy tool that I need is missing?

Tell the AI what you wanted to do. It can send the request with lemonsqueezy_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.

Which AI clients can I use?

Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.

This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.

Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.

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