Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Helloleads MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.
Table of Contents
Connect Helloleads without Auth hassles
We manage OAuth, API Key, token refresh, and scopes, you just build.
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Also integrate Helloleads 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 Helloleads 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.
Verify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
Codex 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 connect.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
What is the Helloleads MCP server, and what's possible with it?
The Helloleads MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Helloleads account. It provides structured and secure access to your lead management system, so your agent can perform actions like listing leads, creating new lead records, and managing lead groups on your behalf.
- Automated lead creation: Instantly add new leads to Helloleads by providing essential details, keeping your sales pipeline updated without manual data entry.
- Comprehensive lead listing: Ask your agent to retrieve and display all leads from your account, making it easy to review, filter, or analyze your prospects.
- Lead list management: Have your agent fetch all available lead list keys, so you can organize and segment leads for targeted follow-ups or campaigns.
- Streamlined lead assignment: Enable your agent to help assign new leads to specific lists, ensuring every lead is captured in the right place from the start.
Supported Tools & Triggers
Conclusion
You've successfully integrated Helloleads with Codex using Composio's MCP server. Now you can interact with Helloleads 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 Helloleads 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 Helloleads operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities











