How to integrate Cody 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 Cody MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

Also integrate Cody 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 870+ 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 Cody 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 connect.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 Cody MCP server, and what's possible with it?

The Cody MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Cody account. It provides structured and secure access so your agent can perform Cody operations on your behalf.

Supported Tools & Triggers

Tools
Create ConversationTool to create a new conversation with a specified bot.
Create DocumentTool to create a new document with text or HTML content in Cody AI.
Create Document From FileTool to create a document by uploading a file (up to 100 MB).
Create Document from WebpageTool to create a document from a publicly accessible webpage URL.
Create FolderTool to create a new folder in Cody AI for organizing content.
Delete ConversationTool to delete a conversation by its ID.
Delete DocumentTool to delete a document by id.
Get ConversationTool to fetch a conversation by its ID from Cody AI.
Get DocumentTool to retrieve a specific document by its identifier from Cody AI.
Get FolderTool to retrieve a specific folder by its identifier.
Get MessageTool to fetch a specific message by its ID from Cody AI.
Get Upload Signed URLTool to get an AWS S3 signed upload URL for file uploads.
List BotsTool to get all bots with optional keyword filtering.
List ConversationsTool to get all conversations with optional filtering by bot, keyword, or includes.
List DocumentsTool to retrieve all documents from Cody AI account with optional filtering.
List FoldersTool to retrieve all folders with optional keyword filtering.
List MessagesTool to retrieve a paginated list of messages from Cody, optionally filtered by conversation.
Send MessageTool to send a message to Cody AI and receive an AI-generated response.
Send Message for StreamTool to send a message to Cody AI and receive a Server-Sent Events (SSE) stream URL for the AI response.
Update ConversationTool to update a conversation by its ID including name, bot_id, and document_ids.
Update FolderTool to update a folder by its ID.

Conclusion

You've successfully integrated Cody with Codex using Composio's MCP server. Now you can interact with Cody 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 Cody operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 870+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

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

How to build Cody MCP Agent with another framework

FAQ

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

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

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

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

Used by agents from

Context
Letta
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HubSpot
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Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.