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Lemon Squeezy MCP by usefulapi

io.usefulapi/lemonsqueezyusefulapi.iostreamable-httpv1.17.4Scanned

MCP server for Lemon Squeezy — stores, products, orders, subscriptions, license keys.

18 tools: 3 can delete or cancel things and 15 only read.

Tools: 3 delete, 0 irreversible, 0 write, 15 read.
  • Reads private data · 3
  • Reads text others write · 3
  • Can send data out · 0
  • No findings

Tools listed without sign-in. Remote posture

Anlyon alternative

3 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

18 tools

Deletes or cancels 3Claude Code: deny
  • lemonsqueezy_cancel_customer_subscriptionWRITE: Cancel a LIVE subscription.No findings

    Why it is in this group

    • The name "lemonsqueezy_cancel_customer_subscription" says "cancel": a word for removing or ending something.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    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. API: DELETE /subscriptions/{id}.

    Annotations the server declares

    • title: Cancel subscription
    • destructiveHint: true
  • lemonsqueezy_create_checkoutWRITE: Create a hosted checkout / payment link for a store + variant.No findings

    Why it is in this group

    • The name "lemonsqueezy_create_checkout" says "create": a word for a change.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    WRITE: Create a hosted checkout / payment link for a store + variant. Returns the created checkout including its `url` (the shareable payment link). API: POST /checkouts.

    Annotations the server declares

    • title: Create checkout
    • destructiveHint: true
  • lemonsqueezy_update_subscriptionWRITE: Modify a LIVE subscription — change plan/tier (variant_id), cancel, pause/unpause, or set the billing anchor.No findings

    Why it is in this group

    • The name "lemonsqueezy_update_subscription" says "update": a word for a change.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    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. API: PATCH /subscriptions/{id}.

    Annotations the server declares

    • title: Update subscription
    • destructiveHint: true
Only reads 15Show 15 read-only tools
  • lemonsqueezy_get_customerGet a single customer by id.No findings

    Why it is in this group

    • The name "lemonsqueezy_get_customer" says "get": a word for reading.
    Description, as the server wrote it
    Get a single customer by id. API: GET /customers/{id}.

    Annotations the server declares

    • title: Get a customer
    • readOnlyHint: true
  • lemonsqueezy_get_orderGet a single order by id.No findings

    Why it is in this group

    • The name "lemonsqueezy_get_order" says "get": a word for reading.
    Description, as the server wrote it
    Get a single order by id. API: GET /orders/{id}.

    Annotations the server declares

    • title: Get an order
    • readOnlyHint: true
  • lemonsqueezy_get_storeGet a single store by id.No findings

    Why it is in this group

    • The name "lemonsqueezy_get_store" says "get": a word for reading.
    Description, as the server wrote it
    Get a single store by id. API: GET /stores/{id}.

    Annotations the server declares

    • title: Get a store
    • readOnlyHint: true
  • lemonsqueezy_get_subscriptionGet a single subscription by id.No findings

    Why it is in this group

    • The name "lemonsqueezy_get_subscription" says "get": a word for reading.
    Description, as the server wrote it
    Get a single subscription by id. API: GET /subscriptions/{id}.

    Annotations the server declares

    • title: Get a subscription
    • readOnlyHint: true
  • lemonsqueezy_get_userGet the currently authenticated user/account behind the API key.No findings

    Why it is in this group

    • The name "lemonsqueezy_get_user" says "get": a word for reading.
    Description, as the server wrote it
    Get the currently authenticated user/account behind the API key. Good first call to confirm auth. API: GET /users/me.

    Annotations the server declares

    • title: Get authenticated user
    • readOnlyHint: true
  • lemonsqueezy_list_customersList customers, optionally filtered by store and/or email.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "lemonsqueezy_list_customers" says "list": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "list" and "email": it reads mail.
    • untrusted-inputThe description's first sentence says "list" and "email": it reads inbound email, which other people can write.
    Description, as the server wrote it
    List customers, optionally filtered by store and/or email. API: GET /customers (filter[store_id], filter[email]).

    Annotations the server declares

    • title: List customers
    • readOnlyHint: true
  • lemonsqueezy_list_discountsList discounts, optionally filtered to one store.No findings

    Why it is in this group

    • The name "lemonsqueezy_list_discounts" says "list": a word for reading.
    Description, as the server wrote it
    List discounts, optionally filtered to one store. API: GET /discounts (filter[store_id]).

    Annotations the server declares

    • title: List discounts
    • readOnlyHint: true
  • lemonsqueezy_list_license_keysList license keys, optionally filtered by store, order, or product.No findings

    Why it is in this group

    • The name "lemonsqueezy_list_license_keys" says "list": a word for reading.
    Description, as the server wrote it
    List license keys, optionally filtered by store, order, or product. API: GET /license-keys (filter[store_id], filter[order_id], filter[product_id]).

    Annotations the server declares

    • title: List license keys
    • readOnlyHint: true
  • lemonsqueezy_list_ordersList orders, optionally filtered by store and/or buyer email.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "lemonsqueezy_list_orders" says "list": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "list" and "email": it reads mail.
    • untrusted-inputThe description's first sentence says "list" and "email": it reads inbound email, which other people can write.
    Description, as the server wrote it
    List orders, optionally filtered by store and/or buyer email. API: GET /orders (filter[store_id], filter[user_email]).

    Annotations the server declares

    • title: List orders
    • readOnlyHint: true
  • lemonsqueezy_list_pricesList price models, optionally filtered to one variant.No findings

    Why it is in this group

    • The name "lemonsqueezy_list_prices" says "list": a word for reading.
    Description, as the server wrote it
    List price models, optionally filtered to one variant. API: GET /prices (filter[variant_id]).

    Annotations the server declares

    • title: List prices
    • readOnlyHint: true
  • lemonsqueezy_list_productsList products, optionally filtered to one store.No findings

    Why it is in this group

    • The name "lemonsqueezy_list_products" says "list": a word for reading.
    Description, as the server wrote it
    List products, optionally filtered to one store. API: GET /products (filter[store_id]).

    Annotations the server declares

    • title: List products
    • readOnlyHint: true
  • lemonsqueezy_list_storesList all stores in the account.No findings

    Why it is in this group

    • The name "lemonsqueezy_list_stores" says "list": a word for reading.
    Description, as the server wrote it
    List all stores in the account. API: GET /stores.

    Annotations the server declares

    • title: List stores
    • readOnlyHint: true
  • lemonsqueezy_list_subscription_invoicesList subscription invoices, optionally filtered by store, status, or refunded flag.No findings

    Why it is in this group

    • The name "lemonsqueezy_list_subscription_invoices" says "list": a word for reading.
    Description, as the server wrote it
    List subscription invoices, optionally filtered by store, status, or refunded flag. API: GET /subscription-invoices (filter[store_id], filter[status], filter[refunded]).

    Annotations the server declares

    • title: List subscription invoices
    • readOnlyHint: true
  • lemonsqueezy_list_subscriptionsList subscriptions with rich filtering by store, status, product, variant, customer, or buyer email.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "lemonsqueezy_list_subscriptions" says "list": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "list" and "email": it reads mail.
    • untrusted-inputThe description's first sentence says "list" and "email": it reads inbound email, which other people can write.
    Description, as the server wrote it
    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]).

    Annotations the server declares

    • title: List subscriptions
    • readOnlyHint: true
  • lemonsqueezy_list_variantsList variants (price/plan tiers), optionally filtered to one product.No findings

    Why it is in this group

    • The name "lemonsqueezy_list_variants" says "list": a word for reading.
    Description, as the server wrote it
    List variants (price/plan tiers), optionally filtered to one product. API: GET /variants (filter[product_id]).

    Annotations the server declares

    • title: List variants
    • readOnlyHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged outbound.

Reads private data3
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write3
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Oct 22, 2026, 15:29 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable
yes
HTTP status of an anonymous initialize
200
tools/list served without credentials
yes
Tools that change things, listed without credentials
3
Protocol version
2025-06-18
WWW-Authenticate on 401
not observed
resource_metadata in WWW-Authenticate
not observed
RFC 9728 protected resource metadata
https://lemonsqueezy.usefulapi.io/.well-known/oauth-protected-resource/mcp
Authorization servers
https://lemonsqueezy.usefulapi.io
Legacy HTTP+SSE transport
no
Dynamic client registration
yes
Client ID metadata documents
no
  • HighThe whole server

    The endpoint served tools/list without credentials, and the list has 3 tools that change things (3 destructive). Whether a call also works without credentials was not tested: tools are never called.

    Matched text

    https://lemonsqueezy.usefulapi.io/mcp: tools/list returned 18 tools to an anonymous client, including lemonsqueezy_create_checkout (destructive), lemonsqueezy_update_subscription (destructive), lemonsqueezy_cancel_customer_subscription (destructive)

    What this check looks for

Findings

Matches of fixed checks, with the text they matched.

No check matched anything in these tool definitions. That is not a safety guarantee.

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.17.4. Values in angle brackets are yours to fill in.

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

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__lemonsqueezy__lemonsqueezy_get_user",
      "mcp__lemonsqueezy__lemonsqueezy_list_stores",
      "mcp__lemonsqueezy__lemonsqueezy_get_store",
      "mcp__lemonsqueezy__lemonsqueezy_list_products",
      "mcp__lemonsqueezy__lemonsqueezy_list_variants",
      "mcp__lemonsqueezy__lemonsqueezy_list_prices",
      "mcp__lemonsqueezy__lemonsqueezy_list_customers",
      "mcp__lemonsqueezy__lemonsqueezy_get_customer",
      "mcp__lemonsqueezy__lemonsqueezy_list_orders",
      "mcp__lemonsqueezy__lemonsqueezy_get_order",
      "mcp__lemonsqueezy__lemonsqueezy_list_subscriptions",
      "mcp__lemonsqueezy__lemonsqueezy_get_subscription",
      "mcp__lemonsqueezy__lemonsqueezy_list_subscription_invoices",
      "mcp__lemonsqueezy__lemonsqueezy_list_license_keys",
      "mcp__lemonsqueezy__lemonsqueezy_list_discounts"
    ],
    "ask": [],
    "deny": [
      "mcp__lemonsqueezy__lemonsqueezy_create_checkout",
      "mcp__lemonsqueezy__lemonsqueezy_update_subscription",
      "mcp__lemonsqueezy__lemonsqueezy_cancel_customer_subscription"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as lemonsqueezy. Review it before you use it.

Capability tags behind 3 rules
  • mcp__lemonsqueezy__lemonsqueezy_list_customers private-data, untrusted-input
  • mcp__lemonsqueezy__lemonsqueezy_list_orders private-data, untrusted-input
  • mcp__lemonsqueezy__lemonsqueezy_list_subscriptions private-data, untrusted-input

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/io.usefulapi/lemonsqueezy/verify?hash=255d41829c461c416e873d25c2c486897360f78f1f0074a2f090cfca163e1136" | jq -e '.changed == false'

Pinned hash 255d41829c46, from Oct 22, 2026, 10:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.usefulapi/lemonsqueezy/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

anlyon.dev badge for io.usefulapi/lemonsqueezy
[![anlyon.dev](https://anlyon.dev/badge/io.usefulapi/lemonsqueezy.svg)](https://anlyon.dev/servers/io.usefulapi/lemonsqueezy)

Source: MCP Registry · repository. Synced Oct 22, 2026, 11:18 UTC.