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.
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How to integrate Apollo MCP with Codex
Connect Codex to Apollo MCP. Bulk enrich profiles for new leads, add contacts to outreach sequence now, and more using natural language, with authentication handled for you.
Apollo is a CRM and lead generation platform that helps businesses discover contacts and manage sales pipelines. Use it to streamline customer outreach and track your deals from one place.
Introduction
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 1500+ 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.
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.
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
codex mcp listCodex 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 dashboard.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
[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 contacts, organizations, outreach, pipeline, conversations, and analytics, so your agent can find prospects, enrich records, manage sequence participation, update sales stages, and review performance on your behalf.
- Prospect search and enrichment: Have your agent search for people and enrich person or organization records with data from Apollo.
- Sequence and outreach management: Let the agent find sequences, add contacts to them, update contact participation status, and review sent outreach emails and engagement activity.
- Contact and account updates: Direct your agent to update contact stages, account stages, and ownership assignments across your sales records.
- Pipeline, task, and conversation research: Instruct your agent to retrieve deal details, search sales tasks, and review recorded conversations with transcripts, participants, and related opportunities.
- Sales insights and company signals: Have your agent query analytics reports, check credit usage, find company news, and review organization job postings.
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 1500+ 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
Supported Tools
Every Apollo action and event your agent gets out of the box.
How to build Apollo MCP Agent with another framework
Claude Code
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Cursor
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ChatGPT
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Claude Cowork
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Antigravity
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OpenAI Agents SDK
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Claude Agent SDK
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Grok Bot
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Muse
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Grok Build
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VS Code
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OpenCode
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OpenClaw
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Hermes
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Atomic Agent
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Google ADK
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LangChain
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Vercel AI SDK
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Mastra AI
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LlamaIndex
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CrewAI
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Pydantic AI
Use Apollo MCP with Pydantic AI
AutoGen
Use Apollo MCP with AutoGen
Explore Other Toolkits
HubSpot
HubSpot is an all-in-one marketing, sales, and customer service platform. It lets teams nurture leads, automate outreach, and track every customer interaction in one place.
Pipedrive
Pipedrive is a sales management platform offering pipeline visualization, lead tracking, and workflow automation. It helps sales teams keep deals moving forward efficiently and never miss a follow-up.
Salesforce
Salesforce is a leading CRM platform that helps businesses manage sales, service, and marketing. It centralizes customer data, enabling teams to drive growth and build strong relationships.
Attio
Attio is a customizable CRM and workspace for managing your team's relationships and workflows. It helps teams organize contacts, automate tasks, and collaborate more efficiently.
Frequently asked questions
Start with Apollo.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Apollo tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building
