Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With the You.com MCP integration, Codex can search the web and images, get citation-backed answers, run deep research tasks, fetch webpage contents, and check your balance, all without leaving the terminal or the app, whichever you prefer.
- UseBuildFeaturesTRIGGERSStart background agents from events across your connected appsFIREWALLNEWBlocks instructions hidden in tool results before your agent reads themINSTANTNEWAudio, video, search, browser and data tools, with no keys to manageOPTIMIZATIONLower cost per completed task with optimised tools and skills
- DOCS
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How to integrate You.com MCP with Codex
Connect Codex to You.com MCP. Find latest news on climate change, search for privacy-focused email providers, and more using natural language, with authentication handled for you.
Api Key
You.com is a privacy-focused search engine that helps users find relevant information quickly and securely. Enjoy enhanced filtering, privacy controls, and tailored search results.
8 Tools
Introduction
Also integrate You.com 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 1700+ 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 You.com 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.
bash
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
bash
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
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }Try it
Ask Codex for a You.com task. The first time, Composio asks you to connect your You.com account.
For example, ask it to:
- "Find latest news on climate change"
- "Search for privacy-focused email providers"
- "Get top tech trends this week"
What is the You.com MCP server, and what's possible with it?
The You.com MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your You.com account. It provides structured and secure access to web search, citation-backed answers, research, webpage content, and image search, so your agent can find current information, answer questions with sources, conduct in-depth research, read webpages, and discover images on your behalf.
- Web search: Have your agent search the web for relevant, up-to-date information from You.com.
- Citation-backed answers: Let the agent answer your questions using web results and include sources for verification.
- In-depth research: Direct your agent to conduct multi-step research, run longer studies in the background, and check their progress and results.
- Finance research: Instruct your agent to research company fundamentals, market prices, macroeconomic indicators, SEC filings, private companies, and alternative financial signals.
- Webpage and image discovery: Have your agent extract clean content from known webpages or search You.com for relevant images.
Conclusion
You've successfully integrated You.com with Codex using Composio's MCP server. Now you can interact with You.com 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 You.com operations
- Managed authentication through Composio
- Access to 20,000+ tools across 1700+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various You.com operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
TOOLS
Supported Tools
Every You.com action and event your agent gets out of the box.
FRAMEWORKS
How to build You.com MCP Agent with another framework
Claude Code
Use You.com MCP with Claude Code
Claude Cowork
Use You.com MCP with Claude Cowork
OpenAI Agents SDK
Use You.com MCP with OpenAI Agents SDK
Claude Agent SDK
Use You.com MCP with Claude Agent SDK
Muse
Use You.com MCP with Muse
OpenClaw
Use You.com MCP with OpenClaw
Hermes
Use You.com MCP with Hermes
Atomic Agent
Use You.com MCP with Atomic Agent
Google ADK
Use You.com MCP with Google ADK
LangChain
Use You.com MCP with LangChain
Vercel AI SDK
Use You.com MCP with Vercel AI SDK
Mastra AI
Use You.com MCP with Mastra AI
LlamaIndex
Use You.com MCP with LlamaIndex
CrewAI
Use You.com MCP with CrewAI
Pydantic AI
Use You.com MCP with Pydantic AI
AutoGen
Use You.com MCP with AutoGen
MORE TOOLKITS
Explore Other Toolkits
Firecrawl
Api Key
Firecrawl automates large-scale web crawling and data extraction. It helps organizations efficiently gather, index, and analyze content from online sources.
Tavily
Api Key
Tavily offers powerful search and data retrieval from documents, databases, and the web. It helps teams locate and filter information instantly, saving hours on research.
Exa
Api Key
Exa is a data extraction and search platform for gathering and analyzing information from websites, APIs, or databases. It helps teams quickly surface insights and automate data-driven workflows.
Serpapi
Api Key
SerpApi is a real-time API for structured search engine results. It lets you automate SERP data collection, parsing, and analysis for SEO and research.
FAQ
Frequently asked questions
With a standalone You.com MCP server, the agents and LLMs can only access a fixed set of You.com tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from You.com 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 You.com tools.
Yes, absolutely. You can configure which You.com 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 You.com data and credentials are handled as safely as possible.
Start with You.com.It takes 30 seconds.
Managed auth, hosted MCP servers, and every You.com 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