Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Fomo MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.
- Builders & DevelopersCOMPOSIOFOR YOUGive Claude, codex, or any harness secure access to 1000+ tools
## 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.
DEVELOPER PLATFORMSDKs, tool execution, and auth infrastructure to ship agentsCLIOne command to add tools and auth to your coding agent - TOOLKITS
- BLOG
- DOCS
How to integrate Fomo MCP with Codex
Connect Codex to Fomo MCP. Show latest fomo events from this week, summarize top fomo notifications today, and more using natural language, with authentication handled for you.
Fomo is a social proof marketing platform that displays real-time user activity notifications on your website. It helps boost trust and conversion rates by showcasing live engagement from your customers.
Introduction
Also integrate Fomo 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 Fomo 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 Fomo MCP server, and what's possible with it?
The Fomo MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Fomo account. It provides structured and secure access to your Fomo event data, so your agent can retrieve notifications, track marketing activity, monitor engagement, and surface real-time insights from your website’s social proof events.
- Fetch recent Fomo events: Instantly retrieve a list of all recent user activity events displayed on your website for analytics or reporting.
- Monitor social proof notifications: Allow your agent to access and summarize the latest notification activity to assess campaign performance.
- Analyze marketing conversion data: Let your agent pull event records to help you understand which actions drive conversions or engagement.
- Track user interactions over time: Easily view trends in visitor activity and notification triggers to inform marketing strategy.
Conclusion
You've successfully integrated Fomo with Codex using Composio's MCP server. Now you can interact with Fomo 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 Fomo 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 Fomo operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
Supported Tools
Every Fomo action and event your agent gets out of the box.
How to build Fomo MCP Agent with another framework
OpenAI Agents SDK
Use Fomo MCP with OpenAI Agents SDK
Claude Agent SDK
Use Fomo MCP with Claude Agent SDK
Claude Code
Use Fomo MCP with Claude Code
Claude Cowork
Use Fomo MCP with Claude Cowork

OpenClaw
Use Fomo MCP with OpenClaw

Hermes
Use Fomo MCP with Hermes
Google ADK
Use Fomo MCP with Google ADK
LangChain
Use Fomo MCP with LangChain
Vercel AI SDK
Use Fomo MCP with Vercel AI SDK
Mastra AI
Use Fomo MCP with Mastra AI
LlamaIndex
Use Fomo MCP with LlamaIndex
CrewAI
Use Fomo MCP with CrewAI
Pydantic AI
Use Fomo MCP with Pydantic AI
AutoGen
Use Fomo MCP with AutoGen
Explore Other Toolkits
Reddit is a social news platform with thriving user-driven communities (subreddits). It's the go-to place for discussion, content sharing, and viral marketing.
Facebook is a social media and advertising platform for businesses and creators. It helps you connect, share, and manage content across your public Facebook Pages.
LinkedIn is a professional networking platform for connecting, sharing content, and engaging with business opportunities. It's the go-to place for building your professional brand and unlocking new career connections.
Active campaign
ActiveCampaign is a marketing automation and CRM platform for managing email campaigns, sales pipelines, and customer segmentation. It helps businesses engage customers and drive growth through smart automation and targeted outreach.
Frequently asked questions
Start with Fomo.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Fomo 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
