List classes, workshops and clients; grant passes or credits to clients in Zenamu. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Zenamu connector, then ask in plain words. The AI picks the tools.
For studio owners and front-desk teams who run classes, workshops and client passes on Zenamu.
List the published classes for a date range, with times, lecturers and places. Canceled classes stay in the list and are marked as canceled.
List the public workshops for a date range, with their own addresses. Then list the lecturers to see who teaches.
List the active clients with their credit and entry-pass balances, and their pass balances per pass group. The list holds personal data.
Check the client's balance first, because a retry can grant twice. Then add entry passes or credits, and choose whether the client gets an email.
Changes dataThe login page asks for your Zenamu public API key (zen_pub_…) and Zenamu secret API key (zen_live_…).
Find both keys in Zenamu admin → Settings → General info → API keys. The secret key needs the Ultimate plan. Your secret key also identifies your account here, so keep it private. Keys are used only to call the API on your behalf; 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": {
"zenamu": {
"url": "https://zenamu.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"zenamu": {
"type": "http",
"url": "https://zenamu.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 Zenamu public API key (zen_pub_…) and Zenamu secret API key (zen_live_…). 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 |
| Proper user | $9/mo · $90/yr | Unlimited* |
*Pro fair use limit: 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this Zenamu server only. Subscribe with zenamu_upgrade (it returns a Stripe Checkout link). Cancel any time with zenamu_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running zenamu_upgrade before then undoes the cancel. Or write to [email protected].
zenamu_list_classeszenamu_list_workshopszenamu_list_lecturerszenamu_list_placeszenamu_list_clientszenamu_list_pass_groupszenamu_grant_creditszenamu_grant_passeszenamu_usage_statuszenamu_request_featurezenamu_upgradezenamu_cancel_subscriptionCheck the class schedule for a date range. Review the workshops and who teaches them. Find clients with low entry-pass balances. Grant entry passes or credits to a client. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Zenamu. The server calls the Zenamu API with your own Zenamu 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 Zenamu public API key (zen_pub_…) and Zenamu secret API key (zen_live_…). 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 Zenamu public API key (zen_pub_…) and Zenamu secret API key (zen_live_…). 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 Zenamu 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 Zenamu.
Yes, if you approve it. 2 of the 8 Zenamu tools can create or change data. The other 6 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 unlimited tool calls (fair use limit: 10,000 tool calls a month), for this Zenamu server only. Cancel any time: Pro then runs to the end of the paid period. Run zenamu_usage_status to see how many calls you used.
Ask the AI to run zenamu_upgrade: it returns a Stripe Checkout link. To cancel, run zenamu_cancel_subscription. Pro continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with zenamu_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.