Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Read contacts, slot types, rosters, bookings and webhooks in Slottable.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://slottable.usefulapi.io/mcpRun this in your terminal
claude mcp add --transport http slottable https://slottable.usefulapi.io/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"slottable": {
"url": "https://slottable.usefulapi.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"slottable": {
"type": "http",
"url": "https://slottable.usefulapi.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://slottable.usefulapi.io/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.
slottable_list_contactsList the company's contacts (name, email, phone, address, subscription flag). Slottable API: GET /api/v1/companies/{company_id}/contacts.
slottable_get_contactGet one contact by id. Slottable API: GET /api/v1/companies/{company_id}/contacts/{id}.
slottable_list_slot_typesList the company's slot types (bookable services or events: name, duration, price, payment and cancellation rules). Good first call. Slottable API: GET /api/v1/companies/{company_id}/slot-types.
slottable_get_slot_typeGet one slot type by id, including its default duration, price and booking rules. Slottable API: GET /api/v1/companies/{company_id}/slot-types/{id}.
slottable_list_slot_type_instancesList the dated slots (instances) of one slot type: datetime, duration, total slots, price and publish state. Slottable API: GET /api/v1/companies/{company_id}/slot-types/{slot_type_id}/slot-type-instances.
slottable_get_slot_type_instanceGet one dated slot (instance) of a slot type. Slottable API: GET /api/v1/companies/{company_id}/slot-types/{slot_type_id}/slot-type-instances/{id}.
slottable_list_slot_type_instance_rosterList the contacts on the roster of one dated slot (who is registered for it). Slottable API: GET /api/v1/companies/{company_id}/slot-types/{slot_type_id}/slot-type-instances/{slot_type_instance_id}/contacts.
slottable_list_slot_type_instance_bookingsList the bookings made for one dated slot (booking id, token, cancellation time). For who is on the slot, use slottable_list_slot_type_instance_roster. Slottable API: GET /api/v1/companies/{company_id}/slot-types/{slot_type_id}/slot-type-instances/{slot_type_instance_id}/bookings
slottable_list_latest_booking_contactsList the most recent booking contacts across the company's slots, with their contact details. Slottable API: GET /api/v1/companies/{company_id}/latest-booking-contacts.
slottable_list_webhooksList the company's webhook subscriptions (target URL, model, events, filter). Slottable API: GET /api/v1/companies/{company_id}/webhooks.
slottable_get_webhookGet one webhook subscription by id. Slottable API: GET /api/v1/companies/{company_id}/webhooks/{id}.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
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Read 11 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (1.1.3) reached the registry yesterday.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, Dechonet MCP
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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Use your Slottable account from Claude, Cursor, or any MCP client. It reads contacts, slot types, dated slots, rosters, bookings and webhook subscriptions, and it changes nothing. Hosted, no local install: connect with your own credentials.
Live endpoint: https://slottable.usefulapi.io/mcp · Homepage: https://usefulapi.io
https://slottable.usefulapi.io/mcp.claude mcp add --transport http slottable https://slottable.usefulapi.io/mcp, then run /mcp to log in.{
"mcpServers": { "slottable": { "url": "https://slottable.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, and the login page asks for your Slottable credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/slottable/
On first connect you provide your Slottable company API token (Slottable → Integrations & API in the company settings). The server validates it and stores it per user. No keys go in config files.
| Tool | Type | What it does |
|---|---|---|
slottable_list_contacts | read | List contacts |
slottable_get_contact | read | Get a contact |
slottable_list_slot_types | read | List slot types |
slottable_get_slot_type | read | Get a slot type |
slottable_list_slot_type_instances | read | List slot type instances |
slottable_get_slot_type_instance | read | Get a slot type instance |
slottable_list_slot_type_instance_roster | read | List a slot's roster |
slottable_list_slot_type_instance_bookings | read | List a slot's bookings |
slottable_list_latest_booking_contacts | read | List latest booking contacts |
slottable_list_webhooks | read | List webhooks |
slottable_get_webhook | read | Get a webhook |
slottable_usage_status | meta | Usage status (free-tier meter) |
slottable_request_feature | meta | Request a missing feature |
slottable_upgrade | meta | Upgrade to Pro or Pro+ |
slottable_cancel_subscription | meta | Cancel the Pro subscription |
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro (per user) | $9/mo or $90/yr (2 months free) | Unlimited* |
\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.
Pro covers this 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 support@usefulapi.io.
MIT — see LICENSE. Documentation only; the server is hosted.