How to integrate Freshbooks MCP with Codex

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

Freshbooks logoFreshbooks
Oauth2

FreshBooks is a cloud-based accounting software for small businesses. It streamlines invoicing, expense tracking, and time management in one place.

10 Tools

Introduction

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

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

The Freshbooks MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Freshbooks account. It provides structured and secure access to your Freshbooks businesses and projects, so your agent can perform actions like listing your companies, exploring business details, and managing project information on your behalf.

  • Business overview and management: Instantly list all businesses associated with your Freshbooks account to get a clear view of your company structures.
  • Project discovery across businesses: Ask your agent to retrieve all projects linked to a selected business, streamlining your workflow management.
  • Seamless business context switching: Effortlessly switch between multiple businesses to access relevant project data without manual navigation.
  • Centralized project insights: Quickly gather and summarize project lists for any business, making it easy to track ongoing work.

Conclusion

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

Supported Tools

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

Create Webhook

Register a new webhook callback for a FreshBooks account.

Delete Webhook

Delete a webhook callback from a FreshBooks account.

Get Business Users

Retrieves staff identities and members for a specific FreshBooks business.

List Businesses

List all businesses associated with the authenticated user.

List Clients

Retrieves all clients for a FreshBooks account.

List Journal Entries

Retrieves all journal entries for a FreshBooks business account.

List Projects

Retrieves all projects associated with a FreshBooks business account.

List Webhooks

List all webhook callbacks registered for a FreshBooks account.

Register as a New User

Register a new user account in FreshBooks.

Update Webhook

Update or verify a FreshBooks webhook callback.

FAQ

Frequently asked questions

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

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

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