Cronofy MCP by usefulapi

Name: Cronofy MCP by usefulapi
Author: m190

by m190version 1.37.3i★ 1 (Stars for the whole repo)iRuns in the cloud

Registry nameio.usefulapi/cronofy

How to install

Overview

Description from the maker (original English)

MCP server for Cronofy — read calendars, events and free/busy, and create, update or delete events.

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.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Other

Install

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

Passed 5/5 checks · What you ask goes through the maker’s server (cronofy.usefulapi.io)

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1

Open Claude’s Connectors page
CustomizeConnectors
Done
Click “+ Add” → “Add custom connector” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameCronofy MCP by usefulapi
Remote MCP server URL · Addresshttps://cronofy.usefulapi.io/mcp
Leave Authentication as Claude detected it, then click Add
Done
Turn it on in a chat
+ConnectorsCronofy MCP by usefulapi
Done
Try it
Use Cronofy MCP by usefulapi and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Cronofy MCP by usefulapi or shows a Cronofy MCP by usefulapi tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT on business plans only

ChatGPT Business, Enterprise or Edu on the web, added by a workspace admin or owner · On Free, Plus or Pro: your ChatGPT plan cannot connect MCP yet

Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Done
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NameCronofy MCP by usefulapi
Connection · Addresshttps://cronofy.usefulapi.io/mcp
Done
Pick Cronofy MCP by usefulapi in a chat
Start a new chat and pick Cronofy MCP by usefulapi from your plugins before typing
Done
Try it
Use Cronofy MCP by usefulapi and tell me what you can do for me, then show me one thing
✓ If ChatGPT says it is using Cronofy MCP by usefulapi or shows a Cronofy MCP by usefulapi tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

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

Done

Type /mcp in Claude Code
You should see Cronofy MCP by usefulapi listed as connected
Done
Try it
Use Cronofy MCP by usefulapi and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Cronofy MCP by usefulapi or shows a Cronofy MCP by usefulapi tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Cronofy MCP by usefulapi and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Cronofy MCP by usefulapi or shows a Cronofy MCP by usefulapi tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Cronofy MCP by usefulapi and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Cronofy MCP by usefulapi or shows a Cronofy MCP by usefulapi tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://cronofy.usefulapi.io/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use Cronofy MCP by usefulapi💬 Discussion →

For developers: Terminal commands and JSON settings

Over the web

Claude Code

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

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "cronofy": {
      "url": "https://cronofy.usefulapi.io/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "cronofy": {
      "type": "http",
      "url": "https://cronofy.usefulapi.io/mcp"
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 1 (Stars for the whole repo)
This repo holds several MCP listings; its stars count once in rankings
Downloads per weeki: Not on npm/PyPI
Verified domain: ✓ usefulapi.io
Licence i: MIT
Connection: Runs in the cloud
Transport: streamable-http
Latest versioni: 1.37.3
Categoryi: Other
Published to registryi: Nov 11, 2026
Code last changedi: Nov 11, 2026
Maker: m190
Repo: m190/usefulapi-mcp
Website: usefulapi.io
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

Claude ChatGPT Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Open WebUI Raycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 9, 2026. The maker wrote them, not us; we show them as plain text.

cronofy_get_account
Get the authenticated Cronofy account's details (id, email, name, default tzid, locale). API: GET /v1/account.
cronofy_get_userinfo
Get the OpenID-style profile of the authenticated user (sub, email, Cronofy profile info). API: GET /v1/userinfo.
cronofy_list_calendars
List all calendars the authenticated account can see (id, name, profile, readonly, primary). API: GET /v1/calendars.
cronofy_list_profiles
List the connected calendar accounts/profiles (e.g. Google, Office 365) linked to this Cronofy account. API: GET /v1/profiles.
cronofy_read_events
Read events across the account's calendars over a time window. Returns { pages, events }. API: GET /v1/events.
cronofy_get_free_busy
Read free/busy information across the account's calendars over a time window. Returns { pages, free_busy }. API: GET /v1/free_busy.
cronofy_upsert_event
Creates or updates an event on a REAL connected calendar (upsert by event_id). This writes to the user's actual calendar. API: POST /v1/calendars/{calendar_id}/events.
cronofy_delete_event
Deletes an event (by your event_id) from a real connected calendar. Destructive. API: DELETE /v1/calendars/{calendar_id}/events.

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 12, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)
✓ Pass
Still maintained
Code last changed today
✓ Pass
Has a licence
Uses MIT
✓ Pass
Endpoint responds
Responded in 15 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 8 tool descriptions and found no hidden instructions to the AI

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Otheri

More stars than 0% of the other 19268 servers in this category
Published to the registry more recently than 97% of the other 19268 servers in this category
Basic checks equal to or better than 100% of the other 19268 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 Cronofy MCP by usefulapi safe?

It passed 5 of 5 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 today, and the latest version (1.37.3) 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 Business and above.

What can I use instead?

In the same category: World Monitor, Claude Flow, Tldraw

Alternatives

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

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

World Monitor

Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 102 tools.

by koala73Widely used★ 90.5KUpdated 7 days ago

Runs in the cloud✓ worldmonitor.app

Install

Claude Flow

AI orchestration with hive-mind swarms, neural networks, and 87 MCP tools for enterprise dev.

by ruvnetWidely used↓ 13.5K/wk★ 81.5KUpdated 14 months ago

Runs on your computer

Install

Tldraw

Draw and visually collaborate with your agents on tldraw's canvas.

by tldrawWidely used★ 51.4KUpdated 8 months ago

Runs in the cloud

Install

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.

Cronofy MCP by usefulapi

Read your calendars, events and free/busy, and create or delete events, from Claude, Cursor, or any MCP client. Hosted, no local install — connect with your Cronofy access token.

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

Connect

Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://cronofy.usefulapi.io/mcp.
Claude Code: claude mcp add --transport http cronofy https://cronofy.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": { "cronofy": { "url": "https://cronofy.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 Cronofy credentials.

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

On first connect you'll paste your Cronofy access token. It's validated, stored per-user, and scoped to you.

Tools

Tool	Type	What it does
`cronofy_get_account`	read	Get account
`cronofy_get_userinfo`	read	Get userinfo
`cronofy_list_calendars`	read	List calendars
`cronofy_list_profiles`	read	List profiles
`cronofy_read_events`	read	Read events
`cronofy_get_free_busy`	read	Get free/busy
`cronofy_upsert_event`	write	Create or update event
`cronofy_delete_event`	write	Delete event
`cronofy_usage_status`	meta	Usage status (free-tier meter)
`cronofy_request_feature`	meta	Request a missing feature
`cronofy_upgrade`	meta	Upgrade to Pro or Pro+
`cronofy_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.

Pricing

Plan	Price	Limit
Free	$0	50 tool calls / month
Pro	$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 cronofy_upgrade (it returns a Stripe Checkout link). Cancel any time with cronofy_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running cronofy_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

License

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

Cronofy MCP by usefulapi

Overview

What you can do with it

Install

Open Claude’s Connectors page

Click “+ Add” → “Add custom connector” and fill in these 2 fields

Turn it on in a chat

Try it

Open ChatGPT’s add-MCP page on the web

Fill in the name and address

Pick Cronofy MCP by usefulapi in a chat

Try it

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Over the web

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Otheri

Common questions

Alternatives

World Monitor

Claude Flow

Tldraw

README from the maker

Cronofy MCP by usefulapi

Connect

Tools

Pricing

License