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Wellknown MCP by usefulapi

by m190version 1.2.3i★ –iRuns in the cloud
Registry nameio.usefulapi/wellknown

Install

Overview

Description from the maker (original English)

Read venue, treatments, open times and bookings; set hours and blocked times in Wellknown.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 3 of 3 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • Can do 7 things (tools) wellknown_get_venue, wellknown_list_treatments, wellknown_get_availability, wellknown_list_bookings …
  • The registry lists no key to fill in.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://wellknown.usefulapi.io/mcp

Run this in your terminal

claude mcp add --transport http wellknown https://wellknown.usefulapi.io/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "wellknown": {
      "url": "https://wellknown.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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "wellknown": {
      "type": "http",
      "url": "https://wellknown.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:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://wellknown.usefulapi.io/mcp

Menu 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.

What it can do

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.

  • wellknown_get_venue

    Get the venue profile: name, market (uk/us), currency, timezone, slot and buffer minutes, lead hours, opening hours per weekday, cancellation rules and treatments. Good first call. Wellknown API: GET /venue/.

  • wellknown_list_treatments

    List the venue's treatments with id, name, kind, duration, price per person (minor units), max guests, capacity and peak-date seasons. Wellknown API: GET /treatments/.

  • wellknown_get_availability

    Get the free time slots Wellknown sells, per treatment per day (time, end, places free). Up to 31 days per call; `to` is exclusive. Wellknown API: GET /availability/.

  • wellknown_list_bookings

    List bookings changed since a timestamp (the updatedAt high-water mark). Bookings are already paid in full. Output holds customer contact data and guest health answers: treat them as sensitive. Wellknown API: GET /bookings/.

  • wellknown_get_booking

    Get one booking by reference (for example WK-7KQ2MD): status (confirmed, checked in, completed, cancelled), treatment, guests, date, times, customer and money fields in minor units. Contains sensitive health answers. Wellknown API: GET /bookings/{ref}/.

  • wellknown_set_date_hours

    WRITE. Change opening hours for single dates on Wellknown. Per day: opens + closes (HH:MM), or closed true, or only the date to go back to normal hours. Changes what customers can book. Wellknown API: PUT /availability/.

  • wellknown_replace_blocks

    WRITE, FULL REPLACE. Set the times the venue's own appointments take, so Wellknown never double-books. Every block NOT sent is removed. units = places taken from every treatment; units 0 closes the whole venue for that time. Wellknown API: PUT /blocks/.

Basic checksi

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

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 309 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 7 tool descriptions and found no hidden instructions to the AI

Compared with others in Otheri

  • More stars than 0% of the other 32433 servers in this category
  • Published to the registry more recently than 98% of the other 32433 servers in this category
  • Basic checks equal to or better than 100% of the other 32433 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Wellknown MCP by usefulapi safe?

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.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

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.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.2.3) reached the registry yesterday.

Which apps can use it?

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.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Symantec Cloud DLP AIops

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

Open the README

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.

Wellknown MCP by usefulapi

Use your Wellknown account from Claude, Cursor, or any MCP client. Read your venue, treatments, open times and bookings, and set opening hours and blocked times. Hosted, no local install: connect with your own credentials.

Live endpoint: https://wellknown.usefulapi.io/mcp · Homepage: https://usefulapi.io

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://wellknown.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http wellknown https://wellknown.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
{

"mcpServers": { "wellknown": { "url": "https://wellknown.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 Wellknown credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/wellknown/

On first connect you provide a Wellknown venue API key that starts with wk_ (Wellknown portal → Connect systems → API). The server validates it and stores it per user. No keys go in config files.

Tools

ToolTypeWhat it does
wellknown_get_venuereadGet venue
wellknown_list_treatmentsreadList treatments
wellknown_get_availabilityreadGet free times
wellknown_list_bookingsreadList bookings
wellknown_get_bookingreadGet a booking
wellknown_set_date_hourswriteSet hours for single dates
wellknown_replace_blockswriteReplace blocked times
wellknown_usage_statusmetaUsage status (free-tier meter)
wellknown_request_featuremetaRequest a missing feature
wellknown_upgrademetaUpgrade to Pro or Pro+
wellknown_cancel_subscriptionmetaCancel 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.

Pricing

PlanPriceLimit
Free$050 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 wellknown_upgrade (it returns a Stripe Checkout link). Cancel any time with wellknown_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running wellknown_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

License

MIT — see LICENSE. Documentation only; the server is hosted.

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