Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With the Todoist MCP integration, Codex can create and update tasks, organize projects and sections, manage labels and comments, track completed tasks, and check productivity stats, all without leaving the terminal or the app, whichever you prefer.
- UseBuildFeaturesTRIGGERSStart background agents from events across your connected appsFIREWALLNEWBlocks instructions hidden in tool results before your agent reads themINSTANTNEWAudio, video, search, browser and data tools, with no keys to manageOPTIMIZATIONLower cost per completed task with optimised tools and skills
- DOCS
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How to integrate Todoist MCP with Codex
Connect Codex to Todoist MCP. Add a high-priority task for today, create a new project called 'team offsite', and more using natural language, with authentication handled for you.
Oauth2
Todoist is a task management app for to-do lists, projects, and reminders. Stay organized and on track with easy deadlines, collaboration, and cross-platform syncing.
76 Tools1 Triggers
Introduction
Also integrate Todoist with
Why use Composio?
Apart from a managed and hosted MCP server, you will get:
- CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Large tool responses: Handle them to minimise context rot.
- Dynamic just-in-time access to 20,000 tools across 1700+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.
How to install Todoist MCP in Codex
Run the setup command
Run this command in your terminal to add the Composio MCP server to Codex.
It will initiate the authentication in a browser window, authorize Codex to access your Composio account.
(Optional) Authenticate with OAuth
To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.
bash
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
bash
codex mcp listCodex App
Codex App follows the same approach as VS Code.
- Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
- Fill the header and Key fields with
{ "x-consumer-api-key" = "ck_*******" }. - The Key is the Composio API key, that you can find on dashboard.composio.dev
- Click on Authenticate and authorize Codex to your Composio account and you're all set.
- Restart and verify if it's there in
.codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }Try it
Ask Codex for a Todoist task. The first time, Composio asks you to connect your Todoist account.
For example, ask it to:
- "Add a high-priority task for today"
- "Create a new project called 'Team Offsite'"
- "Close all completed tasks from this week"
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, and labels, so your agent can create tasks, manage projects, add comments, organize sections, and update your to-do lists on your behalf.
- Task creation and scheduling: Instantly ask your agent to add new tasks with specific details, deadlines, priorities, or even as subtasks within projects or sections.
- Project and workspace management: Let your agent create, organize, or delete projects and workspaces to keep your productivity system tidy and up-to-date.
- Section and label organization: Direct your agent to create, delete, or update sections and labels, helping you structure your tasks and filter lists for better focus.
- Task completion and commenting: Have your agent mark tasks as complete or add helpful comments and notes to specific tasks or projects for seamless collaboration.
- Streamlined cleanup and maintenance: Empower your agent to remove unused projects, labels, or sections, ensuring your Todoist stays clutter-free and organized.
Conclusion
You've successfully integrated Todoist with Codex using Composio's MCP server. Now you can interact with Todoist directly from your terminal, VS Code, or the Codex App using natural language commands.
Key benefits of this setup:
- Seamless integration across CLI, VS Code, and standalone app
- Natural language commands for Todoist operations
- Managed authentication through Composio
- Access to 20,000+ tools across 1700+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various Todoist operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
TOOLS & TRIGGERS
Supported Tools and Triggers
Every Todoist action and event your agent gets out of the box.
FRAMEWORKS
How to build Todoist MCP Agent with another framework
Claude Code
Use Todoist MCP with Claude Code
Cursor
Use Todoist MCP with Cursor
ChatGPT
Use Todoist MCP with ChatGPT
Claude Cowork
Use Todoist MCP with Claude Cowork
Antigravity
Use Todoist MCP with Antigravity
OpenAI Agents SDK
Use Todoist MCP with OpenAI Agents SDK
Claude Agent SDK
Use Todoist MCP with Claude Agent SDK
Grok Bot
Use Todoist MCP with Grok Bot
Kimi Code
Use Todoist MCP with Kimi Code
Grok Build
Use Todoist MCP with Grok Build
VS Code
Use Todoist MCP with VS Code
OpenCode
Use Todoist MCP with OpenCode
OpenClaw
Use Todoist MCP with OpenClaw
Hermes
Use Todoist MCP with Hermes
Atomic Agent
Use Todoist MCP with Atomic Agent
CLI
Use Todoist MCP with CLI
Google ADK
Use Todoist MCP with Google ADK
LangChain
Use Todoist MCP with LangChain
Vercel AI SDK
Use Todoist MCP with Vercel AI SDK
Mastra AI
Use Todoist MCP with Mastra AI
LlamaIndex
Use Todoist MCP with LlamaIndex
CrewAI
Use Todoist MCP with CrewAI
Pydantic AI
Use Todoist MCP with Pydantic AI
AutoGen
Use Todoist MCP with AutoGen
MORE TOOLKITS
Explore Other Toolkits
Google Sheets
Oauth2
Google Sheets is a cloud-based spreadsheet tool for real-time collaboration and data analysis. It lets teams work together from anywhere, updating information instantly.
Notion
Oauth2Api Key
Notion is a collaborative workspace for notes, docs, wikis, and tasks. It streamlines team knowledge, project tracking, and workflow customization in one place.
Airtable
Oauth2Api Key
Airtable combines the flexibility of spreadsheets with the power of a database for easy project and data management. Teams use Airtable to organize, track, and collaborate with custom views and automations.
Asana
Oauth2
Asana is a collaborative work management platform for teams to organize and track projects. It streamlines teamwork, boosts productivity, and keeps everyone aligned on goals.
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. Codex 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.
Start with Todoist.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Todoist tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building