How to integrate Habitica MCP with Codex

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Introduction

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Habitica MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

Also integrate Habitica 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 1000+ 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 Habitica MCP in Codex

Run the setup command

Run this command in your terminal to add the Composio MCP server to Codex.

Terminal

It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

Composio authentication page

(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 composio

Verify the connection

Run codex mcp list to confirm Composio appears as a registered MCP server.

bash
codex mcp list

Codex App

Codex App follows the same approach as VS Code.

  1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
  2. Fill the header and Key fields with { "x-consumer-api-key" = "ck_*******" }.
  3. The Key is the Composio API key, that you can find on dashboard.composio.dev
  4. Click on Authenticate and authorize Codex to your Composio account and you're all set.
Codex App MCP setup
  1. 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_*******" }

What is the Habitica MCP server, and what's possible with it?

The Habitica MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Habitica account. It provides structured and secure access to your tasks, challenges, and groups, so your agent can create tasks, manage challenges, organize groups, and automate productivity routines on your behalf.

  • Automated task creation and management: Let your agent create new tasks, set up habits, or add to-dos to keep your productivity on track—no manual entry needed.
  • Challenge and group organization: Easily create, edit, or delete Habitica challenges and groups so you can coordinate goals and activities with teams or friends.
  • Tag and webhook automation: Have your agent generate new tags for smarter task sorting or set up webhooks for real-time notifications when tasks change or are completed.
  • Subscription and group membership management: Direct your agent to check or cancel subscriptions, leave parties, or delete groups as your needs change.
  • Seamless challenge task updates: Effortlessly add or remove tasks within challenges, helping you keep group goals relevant and up to date.

Supported Tools & Triggers

Tools
Add Task to ChallengeTool to add a new task to a specified challenge.
Add Push DeviceTool to register a push notification device for the authenticated user.
Add Tag to TaskTool to add a tag to a task.
Clone ChallengeTool to clone an existing challenge.
Create ChallengeTool to create a new challenge.
Create Habitica PartyCreate a new Habitica party for collaborative gameplay.
Create TagTool to create a new tag.
Create TaskCreate a new task in Habitica.
Create WebhookTool to create a new webhook for taskActivity events.
Delete Habitica ChallengePermanently delete a Habitica challenge.
Leave or Delete Habitica GroupLeave or delete a Habitica group (party or guild).
Delete Group Chat MessageTool to delete a chat message from a Habitica group (party, guild, or Tavern).
Delete Habitica TagTool to delete a tag for the authenticated user.
Delete TaskPermanently deletes a user's task (habit, daily, todo, or reward) by its ID.
Delete Task Checklist ItemTool to delete a checklist item from a task.
Delete User MessageTool to delete a message from the authenticated user's inbox by its ID.
Delete User Push DeviceTool to remove a push device registration from the authenticated user's account.
Equip ItemTool to equip or unequip gear, pets, mounts, or costume items in Habitica.
Export Challenge to CSVTool to export a Habitica challenge to CSV format.
Get ChallengeTool to retrieve details of a specific challenge.
Get Group ChallengesTool to retrieve challenges available in a specific group (guild, party, or tavern).
Get Task by IDRetrieve a task by its unique ID.
Get Challenge TasksTool to get all tasks for a specified challenge.
Get ContentRetrieves all Habitica game content definitions in a single request.
Get Content By TypeRetrieves Habitica game content data filtered by a specific category type.
Get Export History CSVTool to export user tasks history in CSV format.
Get Export Inbox HTMLTool to export inbox data in HTML format from Habitica.
Export User Data JSONExports the authenticated user's complete data in JSON format.
Get GroupRetrieves detailed information about a Habitica group (guild or party).
Get Group MembersRetrieve members of a Habitica group (guild or party).
Get Habitica GroupsRetrieves Habitica groups based on type.
Get Habitica Tavern GroupTool to retrieve the Habitica Tavern (habitrpg) group details.
Get Party Chat MessagesTool to retrieve party chat messages from Habitica.
Get Model PathsRetrieves all available field paths and their data types for a specified Habitica model.
Get NewsTool to retrieve the latest Bailey announcement from Habitica.
Get PartyRetrieves the authenticated user's party details from Habitica.
Get Shops Market GearTool to retrieve the available gear for purchase in the market shop.
Get Time Travelers ShopTool to retrieve available items in the Time Travelers shop.
Get Habitica API StatusTool to check Habitica API server status.
Get TagsRetrieve all tags for the authenticated Habitica user.
Get TasksTool to retrieve all tasks for the authenticated user.
Get User ChallengesTool to retrieve challenges the authenticated user participates in.
Get User ProfileRetrieves the authenticated user's complete Habitica profile.
Get WebhooksRetrieves all webhooks configured for the authenticated Habitica user.
Get World StateRetrieves the current state of the Habitica game world including active events, world boss status, and seasonal NPC visual themes.
Invite To GroupTool to invite users to a specific group.
Invite To QuestTool to invite party members to a quest.
Join ChallengeTool to join a challenge.
Leave ChallengeTool to leave a Habitica challenge.
Local LoginTool to authenticate a user via local credentials.
Local User RegistrationTool to register a new Habitica user via email and password.
Mark Group Chat SeenTool to mark all chat messages as read/seen for a specific group.
Mark Notification SeenTool to mark a single notification as seen in Habitica.
Mark Notifications SeenMarks specific notifications as read/seen in Habitica.
Move Pinned ItemTool to move a pinned item in the rewards column to a new position.
Move Task To PositionMove a Habitica task to a new position in the task list.
Dismiss Bailey AnnouncementTool to dismiss the latest Bailey announcement in Habitica, allowing it to be read later.
Reset User AccountResets the authenticated user's account to starting state.
Read CardTool to mark a card as read in Habitica.
Remove Party MemberRemoves a member from the authenticated user's party.
Score TaskScore a Habitica task to mark it as completed or incomplete.
Social AuthTool to authenticate a user via a social provider.
Subscribe WebhookTool to enable (subscribe) an existing webhook by ID for the authenticated user.
Unlink All Challenge TasksTool to unlink all tasks from a Habitica challenge.
Update GroupTool to update a Habitica group (party or guild) by modifying its properties.
Update TagTool to update an existing tag's name.
Update TaskUpdate an existing task in Habitica.
Update Task Checklist ItemTool to update a checklist item in a task.
Update UserUpdate the authenticated user's profile, preferences, flags, and other settings in Habitica.
Validate Coupon CodeValidate a Habitica coupon code to check if it is valid and active.

Conclusion

You've successfully integrated Habitica with Codex using Composio's MCP server. Now you can interact with Habitica 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 Habitica operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1000+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

  • Try asking Codex to perform various Habitica operations
  • Explore cross-app workflows by connecting more toolkits
  • Build automation scripts that leverage Codex's AI capabilities

How to build Habitica MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Habitica MCP?

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

Can I use Tool Router MCP with Codex?

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 Habitica tools.

Can I manage the permissions and scopes for Habitica while using Tool Router?

Yes, absolutely. You can configure which Habitica 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.

How safe is my data with Composio Tool Router?

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 Habitica data and credentials are handled as safely as possible.

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Agent.ai
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