Read contacts, slot types, rosters, bookings and webhooks in Slottable. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Slottable connector, then ask in plain words. The AI picks the tools.
For clubs, schools and studios that take bookings for workshops and classes in Slottable.
List the company's slot types with duration, price and booking rules. Open one to read its default settings.
List the dated slots of one slot type. Then read the roster to see which contacts are registered for one slot.
List the bookings made for one dated slot. Then list the latest booking contacts across the company's slots, with their details.
List the company's contacts and open one by id. List the webhook subscriptions to see which events are sent and where.
The login page asks for your Slottable company API token.
Find it in Slottable → Integrations & API (company settings). Your token is used only to call the API on your behalf and to read your company 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": {
"slottable": {
"url": "https://slottable.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"slottable": {
"type": "http",
"url": "https://slottable.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 Slottable company 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.
| 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 Slottable server only. Subscribe with slottable_upgrade (it returns a Stripe Checkout link). Cancel any time with slottable_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running slottable_upgrade before then undoes the cancel. Or write to [email protected].
slottable_list_contactsslottable_get_contactslottable_list_slot_typesslottable_get_slot_typeslottable_list_slot_type_instancesslottable_get_slot_type_instanceslottable_list_slot_type_instance_rosterslottable_list_slot_type_instance_bookingsslottable_list_latest_booking_contactsslottable_list_webhooksslottable_get_webhookslottable_usage_statusslottable_request_featureslottable_upgradeslottable_cancel_subscriptionReview the slot types and their prices. See who is on the roster of a dated slot. Review the latest bookings and booking contacts. Check the contacts and the webhook subscriptions. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Slottable. The server calls the Slottable API with your own Slottable 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 Slottable company API token. 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 Slottable company 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.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Slottable 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 Slottable.
All 11 Slottable tools are marked read-only.
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 Slottable server only. Cancel any time: Pro then runs to the end of the paid period. Run slottable_usage_status to see how many calls you used.
Ask the AI to run slottable_upgrade: it returns a Stripe Checkout link. To cancel, run slottable_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 slottable_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.