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

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

The Apollo MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Apollo account. It provides structured and secure access to your CRM and lead generation data, so your agent can create contacts, enrich organizations, manage deals, update account stages, and automate tasks for your sales pipeline—all on your behalf.

  • Contact and account creation: Instantly add new contacts or accounts to Apollo, linking them to organizations and stages to keep your CRM up to date with zero manual entry.
  • Bulk data enrichment: Rapidly enrich multiple people or organizations at once, leveraging Apollo's database to fill gaps and update your records with the latest information.
  • Sales opportunity and pipeline management: Let your agent create new deals, retrieve opportunity stages, and move accounts through your sales funnel to optimize pipeline performance.
  • Automated outreach sequencing: Add contacts to email sequences, making it easy to launch targeted campaigns and follow-ups without lifting a finger.
  • Task creation and label organization: Generate actionable Apollo tasks for your team and organize contacts or accounts with labels, so nothing slips through the cracks.

Supported Tools & Triggers

Tools
Add Contacts to SequenceAdds contacts to a specified apollo email sequence by initiating an asynchronous background job and returning its details.
Bulk organization enrichmentEnriches data for up to 10 organizations simultaneously by providing a list of their base company domains (e.
Bulk people enrichmentUse to enrich multiple person profiles simultaneously with comprehensive data from apollo's database.
Bulk update account stageBulk updates the stage for specified existing apollo.
Create an Apollo accountCreates a new account in apollo.
Create Apollo contactCreates a new contact in apollo.
Create Apollo dealCreates a new sales opportunity (deal) in apollo.
Create Apollo TaskCreates a distinct apollo.
Get LabelsRetrieves all labels from apollo.
Get opportunity stagesRetrieves all configured opportunity (deal) stages from the apollo.
Get Organization Job PostingsRetrieves paginated job postings for a specified organization by its id, optionally filtering by domain; ensure `organization id` is a valid identifier.
Get typed custom fieldsRetrieves all typed custom field definitions available in the apollo.
List Apollo account stagesRetrieves all available apollo.
List apollo contact stagesRetrieves all available contact stages from an apollo account, including their unique ids and names.
List Apollo dealsRetrieves a list of deals from apollo, using apollo's default sort order if 'sort by field' is omitted.
List email accountsRetrieves all email accounts and their details for the authenticated user; takes no parameters.
List Apollo UsersRetrieves a list of all users (teammates) associated with the apollo account, supporting pagination via `page` and `per page` parameters.
Enrich organization dataFetches comprehensive organization enrichment data from apollo.
Search organizations in ApolloSearches apollo's database for organizations using various filters; consumes credits (unavailable on free plans), retrieves a maximum of 50,000 records, and uses `page` (1-500) and `per page` (1-100) for pagination.
Enrich person with ApolloEnriches and retrieves information for a person from apollo.
Apollo people searchSearches apollo's contact database for people using various filters; results are limited to 50,000 records and this action does not enrich contact data.
Search Apollo AccountsSearches for accounts within your existing apollo.
Search Apollo contactsSearches apollo contacts using keywords, stage ids (from 'list contact stages' action), or sorting (max 50,000 records; `sort ascending` requires `sort by field`).
Search sequencesSearches for sequences (e.
Search tasksSearches for tasks in apollo.
Update an Apollo accountUpdates specified attributes of an existing account in apollo.
Update Apollo contactUpdates specified attributes of an existing apollo.
Update contact ownershipUpdates the ownership of specified apollo contacts to a given apollo user, who must be part of the same team.
Update contact stageUpdates the stage for one or more existing contacts in apollo.
Update contact status in sequenceUpdates a contact's status within a designated apollo sequence, but cannot set the status to 'active'.
Update Apollo dealUpdates specified fields of an existing apollo.

Conclusion

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

How to build Apollo MCP Agent with another framework

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OpenAI Agents SDK

Use Apollo MCP with OpenAI Agents SDK

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Claude Agent SDK

Use Apollo MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Apollo MCP with Claude Code

OpenClaw logo

OpenClaw

Use Apollo MCP with OpenClaw

CLI logo

CLI

Use Apollo MCP with CLI

Google ADK logo

Google ADK

Use Apollo MCP with Google ADK

LangChain logo

LangChain

Use Apollo MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Apollo MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Apollo MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Apollo MCP with LlamaIndex

CrewAI logo

CrewAI

Use Apollo MCP with CrewAI

FAQ

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

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

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

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

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