Which day planners have an MCP server (2026)

First, the disclosure. Reassign is ours, it is on this list, and it is not listed first. Every claim about another vendor below was checked against that vendor’s own help centre, blog or repository on 19 August 2026, and where I could not confirm something from a first-party page I say so rather than fill it in. Nobody else keeps this list, which is the reason it exists, and also the reason to read it with the bias declared.

Now the short answer. If you want to plan your day from inside Claude or ChatGPT, the question is not “does this app do AI”. It is “does this app publish an MCP server, who runs it, and what can the agent touch”. In August 2026 that question has a small, checkable answer, and it is below.

What “has an MCP server” actually means

MCP, the Model Context Protocol, is an open standard that gives an AI assistant a fixed set of tools over an app: read this, create that, move the other. Any client that speaks the standard can use any server that speaks it, which is why one planner’s server works from Claude, ChatGPT, Cursor and a dozen others without a separate integration for each.

Three things separate the servers on this page, and they matter more than the logo:

• Who runs it. A first-party server is the vendor’s own code on the vendor’s own host. A community server is someone’s GitHub repo talking to the vendor’s public API, and it usually wants a pasted API key.
• How it signs in. OAuth means you approve a client in the browser and can revoke it. An API key in a config file means whoever holds the file holds your calendar.
• What the agent can touch. Tasks only, or calendar events too, or the whole day. The tool list is the entire contract, and it is the first thing worth reading.

Which day planners have a first-party MCP server?

Checked 19 August 2026 against each vendor’s own pages. “Hosted” means a remote server the vendor runs; “local” means code that runs on your machine beside the app.

Three adjacent servers are worth knowing about even though none is a day planner. Todoist hosts an official server at ai.todoist.net/mcp over OAuth, for tasks, projects, sections, labels and comments. Google Calendar has Google’s own hosted server, in developer preview, that can list calendars, check availability and create, update and delete events over OAuth. And Fantastical, a calendar app rather than a planner, ships a first-party “Fantastical Connector (MCP)” for Claude Desktop on the Mac (from version 4.1.10, announced March 2026) that searches, creates, reschedules and deletes events with Fantastical’s own natural-language parsing. If your planner has no server, your calendar or your task manager may.

Structured: tasks, on the free tier

Structured’s help centre documents a hosted server at mcp.structured.app/mcp and seven clients: ChatGPT, Claude Code and Claude Desktop, Cursor, Antigravity, Gemini CLI and OpenCode. Sign-in is a Structured Cloud account (a 6-digit code by email), and the tools cover the timeline as tasks: “View your schedule”, “Create tasks”, “Update tasks”, “Complete tasks”, “Delete tasks”, plus recurring tasks behind Structured Pro.

The honest read: this is a task surface. The agent can reschedule a task, but there is no calendar-event write and no notion of reshaping a day as a whole. That matches the app, which is a vertical timeline of tasks, and it is a wider documented client list than ours. If your day is a Structured timeline and you want Claude to add and move things on it, this works and it costs nothing extra.

Akiflow: tasks and calendar events, with guests

Akiflow’s help page documents a hosted server at mcp.akiflow.com/mcp with OAuth sign-in and the broadest calendar write surface on this list: tasks and subtasks, planning across timeframes, the inbox and someday lists, time slots, and calendar events including “Block 2 hours tomorrow morning for deep work”, “Move my 3pm meeting to tomorrow” and cancelling an event with or without notifying guests. Meeting Assistant transcripts are readable too. Documented clients: Claude on every plan, Claude Code, ChatGPT, Cursor and Windsurf.

The honest read: the guest handling is the tell. Akiflow’s server edits real calendar events that other people are invited to, and its docs say invitations and updates go out by default unless you say otherwise. That is power and a footgun in one sentence, so read a proposed change before you approve it. Akiflow has no free plan, so the server is paid by definition; the help page’s FAQ answers “Which Akiflow plan do I need?” with “available on all paid plans”, read on 19 August 2026. The Akiflow comparison sets that server beside ours, scope by scope.

Sunsama: tasks and the timer, not the timebox

Sunsama’s manual documents a hosted server at api.sunsama.com/mcp over OAuth, with setup notes for ChatGPT, Claude (Pro and Team), Claude Desktop, Cursor, Claude Code and Notion. Sunsama does not publish a tool list; third-party walkthroughs from July 2026 found reading and filtering tasks, creating tasks with notes and estimates, updating and completing them, subtasks, streams, and starting and stopping the Sunsama timer.

The honest read: nothing I could find documents timeboxing a task onto the calendar through the server, and the same write-up notes the time-tracking records are not exposed yet. That fits Sunsama’s stated design, which is a guided daily ritual you perform rather than a schedule an agent rewrites. If that ritual is why you use Sunsama, an agent that files tasks into it is the right size of help.

Reclaim: real, and behind a private beta

Reclaim’s help centre documents “Reclaim 2.0 + Claude” over a hosted server at mcp.reclaim.ai, OAuth in the browser, and a capable tool set: view the schedule, find meeting times, create and update events, protect focus time, detect conflicts, all “through approval-based workflows” rather than autonomous changes. Google Calendar and Outlook are both supported underneath.

The honest read: every one of those pages carries the same header. Reclaim 2.0 “is currently in private beta and actively evolving”, and access is by request to Reclaim’s support address. The 2.0 overview lists ChatGPT, Claude and Cursor as supported tools, each with its own setup article. So the accurate sentence is that Reclaim has an official MCP server that most Reclaim users cannot use yet. That will change, and this page will change with it.

Routinery: routines, free on every plan

Added later on 19 August 2026, after the Routinery comparison turned it up. Routinery, the routine-runner app, publishes a hosted server at mcp.routinery.app, and its MCP page says it is “free for all users regardless of subscription status”. The agent reads, creates and edits routines, resizes a step, duplicates a routine, pushes routines to Google Calendar as recurring events, and reads back “completion rates, streaks, and skip patterns”. Every create or edit waits for your explicit confirmation.

The honest read: it is routine-scoped, not day-scoped. The objects are routines and their steps; a meeting you never entered into Routinery is not on it. That is the right shape for “keep my routines tidy” and it costs nothing extra, which is more than ours can say. The pairing with this list’s frame is direct: Routinery’s agent edits the routine, Reassign’s edits the day the routine sits in.

Routine: official, but it runs on your machine

Routine publishes its server under its own GitHub organisation, routineco/mcp-server, installed with npx routine-mcp-server and configured in Claude Desktop. The README’s operating condition is one line: “Run the Routine application for the MCP server to work.” A registry listing shows tools for viewing calendars and events by day or timeline and for pages, Routine’s notes.

The honest read: this is a local bridge, not a hosted service. It works only while the desktop app is open on the same machine, and the README does not list its tools, so I could not confirm whether the agent can create or edit anything or only read. If you live in Routine on one Mac, it is real; if you want to reach your planner from a phone or from ChatGPT’s web app, it is not that.

Reassign: the whole day, on the dial (ours)

Reassign is a 24-hour circular day planner and an MCP server, hosted at reassign.app/api/mcp with OAuth. Documented clients: Claude Code (as a plugin), Claude Desktop and the Claude web app (as a custom connector), ChatGPT (Developer Mode custom connector), and any stdio client such as Cursor or Windsurf through a published npm shim. The dial is free to start; MCP is part of Pro, included in the 7-day Pro trial, no card.

Thirteen planning tools (plus send_feedback, for bug reports), and the shape of them is the difference. get_schedule reads the whole day in one call. write_events creates, moves and resizes blocks that have real positions on the ring, and keeps a block’s microtasks; manage_backlog keeps the Inbox. schedule places a request in the day: when exactly one conflict-free time fits, it books it and hands back an undo token; when several fit, it returns ranked options and confirm_schedule lands the one you pick. undo rolls any change back for 30 minutes. show_day renders the actual dial inside the chat, so you see what the agent did to your evening. Every grant carries events:read, events:write or both, enforced per tool, so a read-only connection can never change your day. The full tool list and setup is here, and a walk through real prompts is here.

The honest read, stated the way I stated everyone else’s: it edits time. Its Inbox holds blocks with no time yet and a microtask list lives inside one block, not in a task manager with due dates, so if what you want is an agent running a to-do system, Todoist’s own server does that better than ours, and Todoist syncs two-way onto the dial anyway. It is Pro where Structured’s is free. And it is ours, so go read what the vendors above say about theirs before you take my word for the comparison. One thing the tools refuse on purpose: cycle data never crosses MCP, even to an assistant with full access.

Which planners have no first-party MCP server?

Not a rhetorical section. Most of these have capable community code, and the difference between that and a vendor server is who is responsible when it writes to your calendar.

• Motion. Nothing on Motion’s own pages that I could find on 19 August 2026 documents a first-party server, and a July 2026 third-party review of the Claude integration says the same in plainer words; the community has filled the gap. Three GitHub repos talk to Motion’s REST API with a personal API key from Motion’s settings, and there is no OAuth. Motion’s own product direction is autopilot scheduling for teams, so an agent surface may never be the priority. Beware a namesake: the “Motion MCP” you find first may belong to the ad-analytics product at motionapp.com, not the calendar.
• Morgen. Community servers on GitHub read and write calendars and events through Morgen’s API with a MORGEN_API_KEY. Morgen’s own AI Planner drafts a plan inside the app; nothing first-party exposes it to an outside agent that I could find.
• Tiimo. A community tiimo-mcp appeared in March 2026, and a request titled “Make a way to integrate this with Claude” sits on Tiimo’s public feedback board. Tiimo’s AI is a co-planner inside the app.
• Trevor AI. What exists is Zapier’s MCP wrapper over Trevor’s Zapier actions, which is a different thing from a planner server: you get Zapier’s tools, on Zapier’s terms.
• Amie pivoted to meeting notes in 2025 and Clockwise shut down in March 2026, so neither belongs on a planner list any more.

If one of these ships a server, this page gets a real refresh and the Updated date at the top will say so.

What to look for, whichever you pick

Match the server to what you will actually ask it to do:

• You want to add and tick things from a chat: any hosted server with tasks will do. Structured is free; Todoist’s own server is the most complete task surface of all.
• You want an agent to move real calendar events, guests and all: Akiflow, and read every proposal before you approve it. Reclaim, once 2.0 opens.
• You want to reshape a whole day when it breaks at 2pm: that is the case Reassign’s server was built for. Push everything after lunch back an hour is one sentence, landed on the dial where you can see it, with an undo.
• You are on ChatGPT, not Claude: Structured, Akiflow, Sunsama and Reassign document it, and Reclaim does on its 2.0 beta; Routine documents Claude Desktop only.
• You will not paste an API key into a file: stay with the hosted servers. Every hosted server here signs you in through the browser: OAuth for most, an email code for Structured. None asks for a key in a config file.

And two questions to ask of any server, first-party or not: what does it refuse to do, and how do you undo what it did? A server that will happily bulk-delete with no undo is not more capable than one that will not. It is less safe, and you will find that out at the worst moment.

None of this decides what your day is for. That part stays yours. What a good server buys is cheaper mechanics for the moment the plan meets the day. Reassign’s is free to try for seven days, no card, and the dial will be round tomorrow either way.