Cronofy MCP by usefulapi

io.usefulapiPublished by usefulapi.ioOfficial publisherv1.36.4Updated Nov 7, 2026

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

The publisher's own server: Ably MCP by usefulapi

VerifiedStreamable HTTPWeb executableProductivity & WorkflowCommunication & Collaboration

Overview

AI-generated overview

Hosted Cronofy MCP server that lets an assistant read calendars, events and free/busy, and create, update or delete events on connected calendars.

What you can do
  • Read account and user profile details
  • List connected calendar profiles and calendars
  • Read events and free/busy across calendars over a time window
  • Create or update an event on a real connected calendar
  • Delete an event from a connected calendar
  • Check monthly usage, request a feature, or manage the subscription
When to use it
Useful when you want an assistant to answer scheduling questions such as what meetings are coming up or when you are free, and to add or remove events on your real calendars without leaving the chat.
Requirements
Remote MCP endpoint at cronofy.usefulapi.io; no local install. Connect with the URL only and sign in through the server's OAuth login page, pasting your Cronofy access token on first connect. A Cronofy account with connected calendar profiles is needed.
Before you install
Upsert and delete tools write to and remove events from your real calendars, so confirm before running them. The server stores your Cronofy access token per user. Usage is metered: the free plan allows 50 tool calls a month, and paid plans are billed through Stripe Checkout links returned by the upgrade tool, with no refund for the current period on cancellation.

Installation

In SourceWeft

  1. Open Cronofy MCP by usefulapi in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.usefulapi%2Fcronofy/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "cronofy-by-usefulapi": {
      "type": "http",
      "url": "https://cronofy.usefulapi.io/mcp"
    }
  }
}

README

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:
json
{  "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

ToolTypeWhat it does
cronofy_get_accountreadGet account
cronofy_get_userinforeadGet userinfo
cronofy_list_calendarsreadList calendars
cronofy_list_profilesreadList profiles
cronofy_read_eventsreadRead events
cronofy_get_free_busyreadGet free/busy
cronofy_upsert_eventwriteCreate or update event
cronofy_delete_eventwriteDelete event
cronofy_usage_statusmetaUsage status (free-tier meter)
cronofy_request_featuremetaRequest a missing feature
cronofy_upgrademetaUpgrade to Pro or Pro+
cronofy_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$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 [email protected].

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 [email protected].

License

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

Source: servers/cronofy/README.md at commit 4046075

Tools

8

cronofy_get_account

Get account

Get the authenticated Cronofy account's details (id, email, name, default tzid, locale). API: GET /v1/account.

Takes no parameters.

cronofy_get_userinfo

Get userinfo

Get the OpenID-style profile of the authenticated user (sub, email, Cronofy profile info). API: GET /v1/userinfo.

Takes no parameters.

cronofy_list_calendars

List calendars

List all calendars the authenticated account can see (id, name, profile, readonly, primary). API: GET /v1/calendars.

Takes no parameters.

cronofy_list_profiles

List profiles

List the connected calendar accounts/profiles (e.g. Google, Office 365) linked to this Cronofy account. API: GET /v1/profiles.

Takes no parameters.

cronofy_read_events

Read events

Read events across the account's calendars over a time window. Returns { pages, events }. API: GET /v1/events.

Parameterstofromtzidrequiredcalendar_idsonly_managedlast_modifiedinclude_deletedinclude_managed

cronofy_get_free_busy

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.

Parameterstofromtzidrequiredcalendar_idsinclude_managed

cronofy_upsert_event

Create or update 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.

Parametersendrequiredtzidstartrequiredsummaryrequiredevent_idrequiredcalendar_idrequireddescriptionlocation_description

cronofy_delete_event

Delete event

Deletes an event (by your event_id) from a real connected calendar. Destructive. API: DELETE /v1/calendars/{calendar_id}/events.

Parametersevent_idrequiredcalendar_idrequired

Version history

21
  1. v1.36.4LatestNov 7, 2026
  2. v1.35.3Nov 5, 2026
  3. v1.35.2Nov 5, 2026
  4. v1.35.1Nov 4, 2026
  5. v1.35.0Nov 3, 2026
  6. v1.34.1Nov 3, 2026
  7. v1.33.0Nov 1, 2026
  8. v1.31.0Oct 31, 2026
  9. v1.30.0Oct 31, 2026
  10. v1.29.2Oct 30, 2026
  11. v1.29.0Oct 30, 2026
  12. v1.24.0Oct 26, 2026
  13. v1.21.3Oct 25, 2026
  14. v1.21.0Oct 25, 2026
  15. v1.20.0Oct 24, 2026
  16. v1.17.0Oct 23, 2026
  17. v1.16.4Oct 22, 2026
  18. v1.16.3Oct 21, 2026
  19. v1.11.1Oct 9, 2026
  20. v1.10.0Oct 9, 2026
  21. v1.0.1Sep 16, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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