How to integrate Todoist MCP with Atomic Agent

Connect Atomic Agent to Todoist MCP. Create project q3 roadmap and tasks, list all overdue tasks assigned to me, and more using natural language, with authentication handled for you.

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Todoist MCP is a hosted Streamable HTTP server for Todoist that exposes task and project operations. Use it to let AI agents integrate with Todoist without writing bespoke integration code.

47 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 Todoist.

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 Todoist account. See the Atomic Agent documentation for installation instructions.

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How Atomic Agent connects to Todoist

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 Todoist 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 Todoist. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Todoist 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 Todoist MCP server, and what's possible with it?

The Todoist MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Todoist account. It provides structured and secure access to your tasks, projects, sections, labels, comments, reminders, filters, and productivity data, so your agent can find tasks, plan work, organize projects, complete tasks, and review progress on your behalf.

  • Task planning and completion: Have your agent create tasks, find work by date or criteria, reschedule deadlines, reopen completed items, and mark tasks complete.
  • Project organization: Let the agent create projects and sections, reorder them, move projects between personal and workspace contexts, and archive projects when work is finished.
  • Labels, filters, and reminders: Direct your agent to create and update labels or filters, then add and find reminders that keep important tasks visible.
  • Collaboration and assignments: Instruct your agent to find project collaborators, assign multiple tasks, and add or update comments for shared work.
  • Progress and project insights: Have your agent review productivity statistics, project activity, project health, workspace insights, completed tasks, and recent Todoist activity.

Use Todoist from Atomic Agent

With your account connected, ask Atomic Agent to work with Todoist 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 Todoist MCP action and event your agent gets out of the box.

Add-comments

Add multiple comments to tasks or projects, optionally notifying collaborators.

Add-filters

Add one or more new personal filters.

Add-labels

Add one or more new personal labels.

Add-projects

Add one or more new projects.

Add-reminders

Add reminders to tasks.

Add-sections

Add one or more new sections to projects.

Add-tasks

Add one or more tasks to a project, section, or parent.

Analyze-project-health

Trigger a new health analysis for a project.

Complete-tasks

Complete one or more tasks by their IDs.

Delete-object

Delete a project, section, task, comment, label, filter, reminder, or location_reminder by its ID.

Export-project-template

Export an existing project as a Todoist template, either as CSV content or as a shareable URL.

Fetch

Fetch the full contents of a task or project by its ID.

Fetch-object

Fetch a single task, project, comment, or section by its ID.

Find-activity

Retrieve activity logs to monitor and audit changes in Todoist.

Find-comments

Find comments by task, project, or get a specific comment by ID.

Find-completed-tasks

Get completed tasks in a date range.

Find-filters

List all personal filters or search for filters by name.

Find-labels

List personal labels and shared labels.

Find-project-collaborators

Find Todoist users (collaborators, teammates) by name or email to look up their user ID.

Find-projects

List all projects or search for projects by name.

Find-reminders

Find reminders by task ID (returns all reminder types), or get a specific reminder by its ID.

Find-sections

Search for sections by name or other criteria in a project.

Find-tasks

Find tasks by text search, project/section/parent container, responsible user, labels, a raw Todoist filter string, or a saved filter by ID or name (filterIdOrName).

Find-tasks-by-date

Get tasks by date range.

Get-overview

Get a Markdown overview.

Get-productivity-stats

Get comprehensive productivity statistics including daily/weekly completion breakdowns, goal streaks (current, last, max), karma score and trends, and historical karma data.

Get-project-activity-stats

Get daily and optional weekly task completion counts for a project over a configurable time window (1-12 weeks).

Get-project-health

Get a comprehensive health assessment for a project including completion progress, health status (EXCELLENT, ON_TRACK, AT_RISK, CRITICAL), and optional detailed context with project metrics and task-level data.

Get-workspace-insights

Get aggregated health and progress insights across all projects in a workspace.

Import-project-template

Import a template into an existing project, adding its tasks, sections and comments to whatever is already there.

List-workspaces

Get all workspaces for the authenticated user.

Manage-assignments

Bulk assignment operations for multiple tasks.

Project-management

Archive or unarchive a project by its ID.

Project-move

Move a project between personal and workspace contexts.

Reorder-objects

Reorder sibling projects or sections, and optionally move projects to a new parent.

Reschedule-tasks

Reschedule tasks to new dates while preserving recurring schedules.

Search

Search across tasks and projects in Todoist.

Uncomplete-tasks

Uncomplete (reopen) one or more completed tasks by their IDs.

Update-comments

Update multiple existing comments with new content.

Update-filters

Update one or more existing personal filters with new values.

Update-labels

Update one or more existing labels.

Update-projects

Update multiple existing projects with new values.

Update-reminders

Update existing reminders.

Update-sections

Update multiple existing sections with new values.

Update-tasks

Update existing tasks including content, dates, priorities, and assignments.

User-info

Get comprehensive user information including user ID, full name, email, timezone with current local time, week start day preferences, current week dates, daily/weekly goal progress, and user plan (Free/Pro/Business).

View-attachment

View a file attachment from a Todoist comment.

FAQ

Frequently asked questions

With a standalone Todoist MCP server, the agents and LLMs can only access a fixed set of Todoist tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Todoist 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 Todoist tools.

Yes, absolutely. You can configure which Todoist 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 Todoist data and credentials are handled as safely as possible.

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