MCP server for Autumn — read customers, plans, balances & invoices; track usage and attach plans. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Autumn connector, then ask in plain words. The AI picks the tools.
For SaaS teams who bill customers with Autumn plans, features and usage balances.
The AI lists your customers and expands their subscriptions, so you see who has an active subscription and which plan each customer is on.
The AI checks a customer's access and balance for one feature, for example whether Acme still has credits left. This check does not record any usage.
The AI lists all plans and features in your environment and opens a single plan, so you get a clear comparison of what each plan includes.
The AI lists invoices with their filters and looks at the customers behind them, so you can summarize what was issued recently.
The AI first previews the cost and effect of attaching a plan to a customer without charging. After you confirm, it attaches the plan, which may create an invoice or return a payment URL.
Changes dataThe login page asks for your Autumn API key.
Find it in the Autumn dashboard → Developer → API keys (looks like am_sk_live_… / am_sk_test_…). 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.
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": {
"autumn": {
"url": "https://autumn.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"autumn": {
"type": "http",
"url": "https://autumn.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 Autumn 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 Autumn server only. Ask your AI to run autumn_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 autumn_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 autumn_upgrade before then undoes the cancel. Or write to [email protected].
autumn_get_customerautumn_list_customersautumn_checkautumn_list_invoicesautumn_get_entityautumn_list_entitiesautumn_list_featuresautumn_get_featureautumn_list_plansautumn_get_planautumn_preview_attachautumn_requestautumn_get_or_create_customerautumn_update_customerautumn_track_usageautumn_attach_planautumn_create_entityautumn_open_customer_portalautumn_usage_statusautumn_request_featureautumn_upgradeautumn_cancel_subscriptionList customers and the plan each one is on. Check if a customer can use a feature. Compare your plans and the features they include. Review recent invoices and who they went to. Preview a plan change, then attach the plan. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Autumn. The server calls the Autumn API with your own Autumn 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 Autumn API key. See Before you connect for where to find it.
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 Autumn 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 Autumn 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 Autumn.
Yes, if you approve it. 6 of the 18 Autumn tools can create or change data. The other 12 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 Autumn server only. Cancel any time: your paid plan then runs to the end of the paid period. Run autumn_usage_status to see how many calls you used.
Ask the AI to run autumn_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 autumn_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 autumn_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.