Manage your Swell headless-commerce store — products, orders, customers, and subscriptions. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Swell connector, then ask in plain words. The AI picks the tools.
For store owners and developers who run a headless commerce store on Swell.
The AI lists orders with filters and sorting and adds up their totals for the period. You can also open a single order by id or order number.
The AI lists products with filters, search and field selection, and shows which ones are inactive. It can also list categories.
The AI lists shopping carts, including abandoned ones, and customers (accounts) with filters. You see who left a cart and how many abandoned carts there are.
The AI lists subscriptions, subscription invoices and discount coupons with filters and sorting. You get an overview of recurring revenue and discounts.
The AI creates a product, changes fields of a product, or updates an order, for example its status or notes. These changes happen on the live store.
Changes dataThe login page asks for your Swell store id and Swell secret API key.
Find both in the Swell dashboard → Developer → API keys (use a secret key, not a public one). Your credentials are used only to call the API on your behalf and to derive a private account id; they are never shown to anyone.
Team and Enterprise: an Owner adds the connector for the organization first.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"swell": {
"url": "https://swell.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"swell": {
"type": "http",
"url": "https://swell.usefulapi.io/mcp"
}
}
} Run these commands. The second one opens the login page:
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.
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 Swell store id and Swell secret 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.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+ | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Swell server only. Ask your AI to run swell_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 swell_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 swell_upgrade before then undoes the cancel. Or write to [email protected].
swell_list_productsswell_get_productswell_list_categoriesswell_list_ordersswell_get_orderswell_list_customersswell_get_customerswell_list_cartsswell_list_subscriptionsswell_get_subscriptionswell_list_invoicesswell_list_couponsswell_queryswell_create_productswell_update_productswell_update_orderswell_usage_statusswell_request_featureswell_upgradeswell_cancel_subscriptionReview orders and revenue for a period. Find products that are inactive or hidden. Count abandoned carts and look at customers. Check subscriptions, invoices and coupons. Create or update products and update orders. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Swell. The server calls the Swell API with your own Swell access, so it sees only the data that your account can see.
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.
The login page asks for your Swell store id and Swell secret API key. See Before you connect for where to find them.
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 Swell store id and Swell secret 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.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Swell 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 Swell.
Yes, if you approve it. 3 of the 16 Swell tools can create or change data. The other 13 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
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 Swell server only. Cancel any time: your paid plan then runs to the end of the paid period. Run swell_usage_status to see how many calls you used.
Ask the AI to run swell_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 swell_cancel_subscription. Your paid plan continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with swell_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.
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.