How to integrate Bonsai MCP with Codex

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

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Bonsai is an all-in-one business management platform for freelancers and agencies. It streamlines contracts, invoicing, client CRM, and project workflows in a single dashboard.

3 Tools

Introduction

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

Also integrate Bonsai 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 Bonsai 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 Bonsai MCP server, and what's possible with it?

The Bonsai MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Bonsai account. It provides structured and secure access to your Bonsai clusters and spaces, so your agent can perform actions like inspecting cluster details, listing available spaces, and retrieving specific space metadata on your behalf.

  • Cluster detail inspection: Instantly retrieve detailed information about any Bonsai cluster by slug, allowing your agent to check configurations and monitor status.
  • Comprehensive space listing: Ask your agent to fetch a list of all available spaces, making it easy to see your server groups and geographic regions at a glance.
  • Space metadata retrieval: Quickly get detailed metadata for a specific Bonsai space by its path, so you can confirm crucial details before provisioning or making changes.
  • Multi-region and group awareness: Empower your agent to help you understand the distribution and organization of your Bonsai resources across different regions and groups.

Conclusion

You've successfully integrated Bonsai with Codex using Composio's MCP server. Now you can interact with Bonsai 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 Bonsai 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 Bonsai operations
  • Explore cross-app workflows by connecting more toolkits
  • Build automation scripts that leverage Codex's AI capabilities
TOOLS

Supported Tools

Every Bonsai action and event your agent gets out of the box.

Get Bonsai Cluster Details

Tool to retrieve details for a single bonsai cluster by slug.

Retrieve Space Details

Tool to retrieve details for a single space by its path.

List Spaces

Tool to retrieve a list of all available spaces.

FAQ

Frequently asked questions

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

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

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