How to integrate Emelia MCP with Codex

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

Emelia logoEmelia
Api Key

Emelia is an all-in-one B2B prospecting platform for cold-email, LinkedIn outreach, and prospect research. It streamlines outbound campaigns so you can find, engage, and warm up leads faster.

22 Tools

Introduction

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

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

The Emelia MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Emelia account. It provides structured and secure access to your B2B outreach operations, so your agent can perform actions like launching campaigns, managing contacts, finding prospect emails, and tracking outreach activities on your behalf.

  • Automated campaign creation and management: Instruct your agent to create new email or LinkedIn campaigns, add contacts, or remove contacts from campaigns to keep your outreach efforts streamlined and organized.
  • Prospect email discovery: Have your agent find verified email addresses for specific contacts using full name and company details, accelerating your lead generation process.
  • Contact blacklisting and compliance: Direct your agent to add contacts to the blacklist, ensuring that no further emails are sent and helping you stay compliant with outreach best practices.
  • Real-time campaign activity tracking: Retrieve detailed campaign activities and create webhooks to monitor engagement, so you’re always up to date on your outreach performance.
  • Webhook automation for event-driven workflows: Let your agent create or delete webhooks to automate follow-ups and synchronize campaign updates across your sales stack.

Conclusion

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

Supported Tools

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

Add Contact to Blacklist

Tool to add a contact to the email blacklist.

Add Contact To Campaign

Tool to add a contact to an email campaign.

Create Campaign

Tool to create a new email campaign.

Create LinkedIn Campaign

Tool to create a new LinkedIn campaign.

Create Webhook

Tool to create a new webhook for campaign events.

Delete Contact From Campaign

Tool to remove a contact from an email campaign.

Delete Contact From LinkedIn Campaign

Tool to delete a contact from a LinkedIn campaign.

Delete Webhook

Tool to delete a specific webhook.

Find Email of Single Contact

Tool to initiate a job to find the email address of a specific contact.

Get Campaign Activities

Tool to retrieve activities for a specific email campaign.

Get Find Email Result

Tool to retrieve the result of a previously initiated email find job.

Get Find Phone Result

Tool to retrieve the outcome of a previously initiated phone-find job.

Get Campaign Activities

Tool to retrieve activities for a campaign.

Get Verify Email Result

Tool to get the result of an email verification job.

Initiate Email Verification Job

Tool to initiate an asynchronous email verification job.

Initiate Phone Find Job

Tool to initiate a phone-find job for a single contact.

List Campaign Contacts

Tool to list contacts in a specific email campaign.

List Campaigns

Tool to retrieve all email campaigns.

List Email Providers

Tool to retrieve all configured email providers.

List LinkedIn Campaigns

Tool to list all LinkedIn campaigns.

List webhooks

Tool to retrieve all webhooks.

Remove Contact from Blacklist

Tool to remove a contact or domain from the email blacklist.

FAQ

Frequently asked questions

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

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

Start with Emelia.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Emelia tool your agent needs.Free to start.

Start building