How to integrate Ticktick MCP with Atomic Agent

Connect Atomic Agent 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.

Ticktick logoTicktick
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

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Ticktick.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Ticktick account. See the Atomic Agent documentation for installation instructions.

Also integrate Ticktick with

How Atomic Agent connects to Ticktick

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect Ticktick to Atomic Agent

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
  3. Ask Atomic Agent to do something in Ticktick. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Ticktick account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

What is the Ticktick MCP server, 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.

Use Ticktick from Atomic Agent

With your account connected, ask Atomic Agent to work with Ticktick in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

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. Atomic Agent 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.

Start with Ticktick.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Ticktick tool your agent needs.Free to start.

Start building