Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Tavily 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 Tavily MCP with Codex
Connect Codex to Tavily MCP. Find latest news about electric vehicles, search for recent ai research papers, and more using natural language, with authentication handled for you.
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.
Introduction
Also integrate Tavily 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 Tavily 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 Tavily MCP server, and what's possible with it?
The Tavily MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Tavily account. It provides structured and secure access to web search, page content, website structures, and account usage, so your agent can search the web, extract content, crawl websites, map pages, and check usage on your behalf.
- Focused web search: Have your agent search the web with controls for search depth, content type, result count, and included or excluded domains.
- Web page content extraction: Direct your agent to extract and parse useful content from specific web pages for research, summaries, or analysis.
- Intelligent website crawling: Let the agent crawl a website across multiple paths and collect content from the pages it discovers.
- Website mapping: Instruct your agent to map a website and identify its available pages before deeper research or extraction.
- Usage monitoring: Have your agent check your Tavily account and API key usage statistics so you can track consumption.
Conclusion
You've successfully integrated Tavily with Codex using Composio's MCP server. Now you can interact with Tavily 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 Tavily 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 Tavily operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
Supported Tools
Every Tavily action and event your agent gets out of the box.
How to build Tavily 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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Kimi Code
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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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Pi
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DeepSeek Harness
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CLI
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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
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AutoGen
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Explore Other Toolkits
Firecrawl
Firecrawl automates large-scale web crawling and data extraction. It helps organizations efficiently gather, index, and analyze content from online sources.
Exa
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
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.
Peopledatalabs
Peopledatalabs delivers B2B data enrichment and identity resolution APIs. Supercharge your apps with accurate, up-to-date business and contact data.
Frequently asked questions
Start with Tavily.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Tavily 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
