Seal Subscriptions MCP server

Manage Seal Subscriptions on Shopify: subscriptions, billing attempts, items, discounts, rules. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.

Connect Seal Subscriptions50 free tool calls a month

What can I ask?

Turn on the Seal Subscriptions connector, then ask in plain words. The AI picks the tools.

Which subscriptions are scheduled to be charged tomorrow?
Show the subscriptions of john@example.com and their next billing dates.
Skip the next billing attempt of subscription 568185.
Which of my subscriptions have failed charges this week?

What you can do with Seal Subscriptions in Claude and ChatGPT

For Shopify merchants who sell subscriptions with Seal Subscriptions.

See which subscriptions will be charged soon

The AI lists subscriptions with a billing attempt between two dates, for example tomorrow or this week, and reads one subscription in full.

Find a customer's subscriptions and failed charges

The AI searches subscriptions by customer email or name and filters by status. It can include billing attempts to show next billing dates and errors.

Skip, bring back or move a billing attempt

The AI skips an upcoming billing attempt, brings a skipped one back, or moves an attempt to another date and time.

Changes data

Pause, resume, cancel or reactivate a subscription

The AI pauses or resumes a subscription, cancels it now, or reactivates a cancelled one.

Changes data

Add, change or remove items of a subscription

The AI adds products to a subscription, changes variant, quantity or price of items, or removes items. This changes what the customer pays next.

Changes data

Email a customer to update the payment method

The AI reads a subscription with failed charges and sends its customer an email with a link to update the payment method.

Changes data

How do I connect Seal Subscriptions?

Before you connect

The login page asks for your Seal Subscriptions API token.

Find it in your Shopify admin → Apps → Seal Subscriptions → Settings → General Settings → API. Use the API token, not the API secret. The token belongs to one shop and can manage its subscriptions; your token is used only to call the Seal Subscriptions API on your behalf and is never shown to anyone.

Claude claude.ai · Desktop

Open Customize → Connectors, then click + Add → Add custom connector.
Enter the name Seal Subscriptions and this URL, then click Add:
https://seal-subscriptions.usefulapi.io/mcp
Claude opens the login page: enter your Seal Subscriptions API token.
In a chat, click + → Connectors and turn on Seal Subscriptions.

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

ChatGPT chatgpt.com

Open Plugins, click +, then Add custom MCP server.
Enter the name Seal Subscriptions and this URL, choose OAuth as the authentication, confirm the warning and create it:
https://seal-subscriptions.usefulapi.io/mcp
ChatGPT opens the login page: enter your Seal Subscriptions API token.
In Plugins, install Seal Subscriptions, 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 seal-subscriptions https://seal-subscriptions.usefulapi.io/mcp

Cursor

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

{
  "mcpServers": {
    "seal-subscriptions": {
      "url": "https://seal-subscriptions.usefulapi.io/mcp"
    }
  }
}

VS Code

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

{
  "servers": {
    "seal-subscriptions": {
      "type": "http",
      "url": "https://seal-subscriptions.usefulapi.io/mcp"
    }
  }
}

Codex

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

codex mcp add seal-subscriptions --url https://seal-subscriptions.usefulapi.io/mcp

codex mcp login seal-subscriptions

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://seal-subscriptions.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 Seal Subscriptions API token. 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

Plan	Price	Limit
Free	$0	50 tool calls / month
Proper user	$9/mo · $90/yr	10,000 tool calls / month
Pro+per user	$39/mo · $390/yr	100,000 tool calls / month

Each paid plan covers this Seal Subscriptions server only. Ask your AI to run sealsubscriptions_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 sealsubscriptions_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 sealsubscriptions_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

Tools 32

Show all 32 tools (the AI picks them for you)

Read only · 7

List subscriptionssealsubscriptions_list_subscriptions
List or search the shop's subscriptions (up to 50 per page; pass next_cursor as cursor for the next page): status, customer, interval, total value, shipping address and card brand/last digits. Search by customer email, first or last name; filter by status; optionally include the items and the billing attempts of each.
List subscriptions by billing datesealsubscriptions_list_subscriptions_by_billing_date
Subscriptions that have at least one billing attempt scheduled between two UTC date-times: the way to see what will be charged tomorrow or this week. Each subscription carries a cursor; pass the last one's cursor as `cursor` to get the next page.
Get subscriptionsealsubscriptions_get_subscription
One subscription with everything Seal knows: customer, shipping and billing address, status, intervals, delivery method, items with discounts, billing attempts (with status and error messages), fulfillment orders, invoices, tags and the activity log. Private customer links are removed.
List subscription rulessealsubscriptions_list_subscription_rules
List the subscription rules (plans) of the shop: name, payment type, the products and variants they apply to and their selling plans.
Get subscription rulesealsubscriptions_get_subscription_rule
One subscription rule by id, with its products, variants and selling plans.
List selling planssealsubscriptions_list_selling_plans
Read a subscription rule's complete selling plans, including initial/fixed and recurring pricing policies, cycle thresholds, billing and delivery intervals. Returns Seal's original field names and values. Read only: Seal's public API does not support editing these policies or reading/creating/updating automated interval-change rules; configure those in the Seal app. Does not change existing contracts.
List webhookssealsubscriptions_list_webhooks
List the webhooks registered for this shop through the API (topic and address).

Changes data · 21

Pause subscriptionsealsubscriptions_pause_subscription
WRITE: Pause an active subscription: no further charges or shipments until it is resumed. Undo with sealsubscriptions_resume_subscription. PUT /subscription action=pause.
Resume subscriptionsealsubscriptions_resume_subscription
WRITE: Resume a paused subscription so charges and shipments continue on the schedule. PUT /subscription action=resume.
Reactivate subscriptionsealsubscriptions_reactivate_subscription
WRITE: Reactivate a cancelled subscription (the effect is the same as resume; use this for cancelled ones). Charges restart on the schedule, so the customer may be billed. PUT /subscription action=reactivate.
Cancel subscriptionsealsubscriptions_cancel_customer_subscription
WRITE: Cancel a subscription now: all future charges and shipments stop and the customer may get Seal's cancellation email. It can be brought back with sealsubscriptions_reactivate_subscription. For a later cancellation use sealsubscriptions_schedule_cancellation. PUT /subscription action=cancel.
Schedule subscription cancellationsealsubscriptions_schedule_cancellation
WRITE: Schedule the cancellation of a subscription for a future date and time (it stays active until then).
Add items to subscriptionsealsubscriptions_add_items
WRITE: Add products to a subscription. Prices are in the subscription's currency and change what the customer pays on the next charge. An item with one_time=true is removed after the next renewal. PUT /subscription action=add_items.
Edit subscription itemssealsubscriptions_edit_items
WRITE: Change existing items of a subscription: variant, quantity (> 0), price (>= 0), SKU, one-time flag, properties. Changes what the customer pays on the next charge. PUT /subscription action=edit_items.
Remove items from subscriptionsealsubscriptions_remove_items
WRITE: Remove items from a subscription by item id. The customer stops receiving and paying for them. PUT /subscription action=remove_items.
Edit subscriptionsealsubscriptions_edit_subscription
WRITE: Edit a subscription's schedule and details: delivery and billing interval (a billing interval longer than the delivery interval makes it prepaid), min/max number of payments, note attributes (an empty list removes them), delivery method and price, and the shipping address. Only the fields you pass change. To change items use the item tools. PUT /subscription action=edit.
Reschedule billing attemptsealsubscriptions_reschedule_billing_attempt
WRITE: Move a billing attempt that has not been processed yet to another date and time. With reset_schedule=true the later attempts are rebuilt from the new date. PUT /subscription-billing-attempt action=reschedule.
Skip billing attemptsealsubscriptions_skip_billing_attempt
WRITE: Skip one upcoming billing attempt so the customer is not charged for that cycle. Undo with sealsubscriptions_unskip_billing_attempt. PUT /subscription-billing-attempt action=skip.
Unskip billing attemptsealsubscriptions_unskip_billing_attempt
WRITE: Bring back a skipped billing attempt, so it is charged on its date again. PUT /subscription-billing-attempt action=unskip.
Delete billing attemptsealsubscriptions_delete_billing_attempt
WRITE: Delete a billing attempt that has not been processed. Seal keeps 65 days of attempts scheduled, so a deleted one is recreated within hours unless the schedule is moved first (see sealsubscriptions_reschedule_billing_attempt).
Reschedule fulfillment ordersealsubscriptions_reschedule_fulfillment_order
WRITE: Move a fulfillment order of a prepaid subscription to another date and time. PUT /subscription-fulfillment-order action=reschedule.
Charge subscription nowsealsubscriptions_create_charge_now
WRITE: CHARGES THE CUSTOMER'S PAYMENT METHOD IMMEDIATELY for the next billing attempt of the subscription and creates a Shopify order; it does not wait for the scheduled date. Only call it when the user clearly asked for an immediate charge. With reset_schedule=true the later attempts are rebuilt from today.
Process a specific chargesealsubscriptions_process_charge
WRITE: CHARGES THE CUSTOMER'S PAYMENT METHOD NOW for one specific billing attempt (for example a failed or upcoming one) and creates a Shopify order. Only call it when the user clearly asked for that charge.
Apply discount codesealsubscriptions_apply_discount_code
WRITE: Apply a Shopify discount code to an auto-charging subscription (not to recurring-invoice subscriptions); it lowers what the customer pays on the next charges. PUT /subscription-discount-code action=apply.
Remove discount codesealsubscriptions_remove_discount_code
WRITE: Remove a discount code from a subscription. Use the discount code id from the subscription's items[].discount_codes[].id (a uuid), not the code text.
Email customer to update payment methodsealsubscriptions_send_payment_method_update_email
WRITE: SENDS AN EMAIL TO THE CUSTOMER of the subscription with a link to update their payment method (for example after failed charges). Only call it when the user clearly asked to contact the customer. PUT /subscription action=send_payment_method_update_email.
Edit subscription rulesealsubscriptions_edit_subscription_rule
WRITE: Edit a subscription rule: its name, the plan selector label (`options`, e.g. "Deliver every") and the products it applies to. Cannot edit selling-plan pricing, billing intervals or automated interval-change rules; use the Seal app for those settings. product_variants REPLACES all products and variants linked to the rule: to add some without removing the others use sealsubscriptions_append_rule_product_variants.
Add products to subscription rulesealsubscriptions_append_rule_product_variants
WRITE: Add products or variants to a subscription rule without touching the ones already linked.

Your usefulapi plan · 4

Usage status (free-tier meter)sealsubscriptions_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 featuresealsubscriptions_request_feature
Tell usefulapi that the user needs something the Seal Subscriptions 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+sealsubscriptions_upgrade
Get a paid plan for Seal Subscriptions (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: call without confirm first, as the reply states the exact charge for this account (the price difference for the rest of the period, or in a free Pro trial the full Pro+ price, as the trial ends); then call with confirm: true. 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 subscriptionsealsubscriptions_cancel_subscription
Cancel the caller's Seal Subscriptions 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 sealsubscriptions_upgrade later to undo the cancel before the period ends. Does not count against the meter.

FAQ

What can I do with Seal Subscriptions in Claude or ChatGPT?

See which subscriptions will be charged soon. Find a customer's subscriptions and failed charges. Skip, bring back or move a billing attempt. Pause, resume, cancel or reactivate a subscription. Add, change or remove items of a subscription. Email a customer to update the payment method. See what you can do for the details.

Is this an official Seal Subscriptions product?

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

Can I connect Seal Subscriptions 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 Seal Subscriptions API token. See Before you connect for where to find it.

Do I put my Seal Subscriptions 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 Seal Subscriptions API token. 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 Seal Subscriptions credentials?

The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Seal Subscriptions 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 Seal Subscriptions.

Can the AI change my Seal Subscriptions data?

Yes, if you approve it. 21 of the 28 Seal Subscriptions tools can create or change data. The other 7 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 Seal Subscriptions server only. Cancel any time: your paid plan then runs to the end of the paid period. Run sealsubscriptions_usage_status to see how many calls you used.

How do I subscribe or cancel?

Ask the AI to run sealsubscriptions_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 sealsubscriptions_cancel_subscription. Your paid plan continues to the end of the paid period.

What if a Seal Subscriptions tool that I need is missing?

Tell the AI what you wanted to do. It can send the request with sealsubscriptions_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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