How to connect Ticktick to Claude

Connect Claude Web, Desktop and Cowork to Ticktick MCP. Add a new task for tomorrow morning, complete all overdue tasks in your inbox, and more using natural language, with authentication handled for you.

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Oauth2

TickTick is a cross-platform task management and to-do list app. It helps you organize tasks, set reminders, and stay on top of your schedule.

13 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Ticktick account to Claude via Composio Connect, enabling it to add a new task for tomorrow morning, complete all overdue tasks in your inbox, create a project called 'Vacation Planning', and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Ticktick with

Connecting Ticktick to Claude Web, Desktop, and Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

4. Connect your Ticktick account

Back in Claude, ask it to connect to Ticktick or give it any Ticktick-related task.

For example, ask Claude to:

  • "Add a new task for tomorrow morning"
  • "Complete all overdue tasks in your inbox"
  • "Create a project called 'Vacation Planning'"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Ticktick account is ready to use.

What is the Ticktick Claude Connector, and what's possible with it?

The Ticktick MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Ticktick account. It provides structured and secure access to your task lists and projects, so your agent can create, manage, and organize tasks, complete or delete items, and streamline your productivity workflows automatically.

  • Automated task creation and editing: Let your agent add new tasks, set deadlines, and update task details across your Ticktick projects with ease.
  • Project management and organization: Direct your agent to create, retrieve, or delete entire projects, keeping your workspace tidy and aligned with your priorities.
  • Seamless task completion and cleanup: Ask your agent to mark tasks as complete or delete tasks you've finished or no longer need, helping you stay on top of your to-do list.
  • Comprehensive project data retrieval: Have your agent fetch detailed project information, including all associated tasks and columns, for quick overviews or reporting.
  • Effortless OAuth2 authentication management: Benefit from a streamlined, agent-guided authorization flow that securely connects your Ticktick account with minimal friction.

Troubleshooting

1. Why does Claude not use the Composio connector for Ticktick?

The connector can show as connected, but Claude must use it in each Ticktick conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Ticktick again.

2. Why does Claude show an MCP server error before Ticktick connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Ticktick.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Ticktick.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Ticktick authorization link not work?

The Composio connector is one server. Your Ticktick account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Ticktick connection.
  • Composio creates a fresh Ticktick authorization link.
  • Open that link in your browser and finish the Ticktick sign-in.

4. Why do Ticktick actions fail after they worked before?

The Ticktick connection can expire or lose permission.

  • Ask Claude to inspect the Ticktick connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Ticktick account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Ticktick.
  • If the action still fails with a permission error, check that the connected account has that permission in Ticktick itself.

5. How do I switch to a different Ticktick account?

Claude can manage the Ticktick connection for you.

  • Ask Claude to disconnect or delete the current Ticktick account.
  • Ask Claude to connect Ticktick again.
  • Open the new Composio authorization link for Ticktick.
  • Sign in with the other Ticktick account in the browser.
  • After the account connects, ask Claude to retry the Ticktick task.

6. Why is my Ticktick connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Ticktick connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click and click Clear cache.
  • If Ticktick tools still do not appear, click , disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Ticktick.
TOOLS

Supported Tools

Every Ticktick action and event your agent gets out of the box.

Complete Task

Marks a TickTick task as complete.

Create Project

Create a new project (list) in TickTick.

Create Task

Tool to create a new task in TickTick.

Delete TickTick Project

Permanently deletes a TickTick project by its ID.

Delete Task

Tool to permanently delete a specific task — irreversible, no recovery.

Get Project By ID

Tool to retrieve a specific TickTick project by its unique ID.

Get project with data

Retrieve a project's associated data (incomplete tasks, columns).

Get Task By Project And ID

Tool to retrieve a specific TickTick task by project ID and task ID.

Get User Projects

Retrieves all projects accessible to the authenticated user, including personal and shared projects.

List All Tasks

Tool to list all open/undone tasks across all user projects in one call.

Generate OAuth2 Authorization URL

Tool to generate the TickTick OAuth2 authorization URL.

Update Project

Tool to update an existing project.

Update Task

Tool to update an existing task.

FAQ

Frequently asked questions

With a standalone Ticktick MCP server, the agents and LLMs can only access a fixed set of Ticktick tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Ticktick and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Ticktick tools.

Yes, absolutely. You can configure which Ticktick scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Ticktick data and credentials are handled as safely as possible.

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