Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With the Securitytrails MCP integration, Codex can look up domain details and SSL certificates, search IP addresses, find company-associated IPs, and run SQL API queries, 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 Securitytrails MCP with Codex
Connect Codex to Securitytrails MCP. Show all ips linked to acme.com, fetch ssl certificate history for example.com, and more using natural language, with authentication handled for you.
Securitytrails is a leading domain and IP intelligence platform offering real-time and historical DNS, WHOIS, and cyber threat data. It helps security teams quickly investigate, monitor, and defend against threats using comprehensive internet asset visibility.
Introduction
Also integrate Securitytrails 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 Securitytrails 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_*******" }Try it
Ask Codex for a Securitytrails task. The first time, Composio asks you to connect your Securitytrails account.
For example, ask it to:
- "Show all IPs linked to acme.com"
- "Fetch SSL certificate history for example.com"
- "Run SQL query for hosts in 192.168.0.0/16"
What is the Securitytrails MCP server, and what's possible with it?
The Securitytrails MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Securitytrails account. It provides structured and secure access to domain and IP intelligence data, so your agent can perform actions like retrieving domain details, analyzing IP associations, running custom SQL queries, and managing static asset rules on your behalf.
- Domain and DNS intelligence: Instantly fetch detailed information about any domain, including current DNS record statistics and associated data for robust cybersecurity analysis.
- SSL certificate retrieval: Access current and historical SSL certificate details for any hostname, helping you track certificate changes or potential vulnerabilities over time.
- IP and company association search: Discover all IP addresses linked to a specific company domain, or run advanced IP searches using custom DSL queries for threat hunting and investigation.
- Automated SQL-powered investigations: Execute SQL queries across hosts and IPs to extract targeted intelligence and spot trends or anomalies in your attack surface data.
- Bulk static asset management: Add, update, or remove up to 1000 static asset rules at once to quickly adapt your security policies across projects.
Conclusion
You've successfully integrated Securitytrails with Codex using Composio's MCP server. Now you can interact with Securitytrails 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 Securitytrails 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 Securitytrails operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
Supported Tools
Every Securitytrails action and event your agent gets out of the box.
How to build Securitytrails MCP Agent with another framework
Claude Code
Use Securitytrails MCP with Claude Code
Claude Cowork
Use Securitytrails MCP with Claude Cowork
OpenAI Agents SDK
Use Securitytrails MCP with OpenAI Agents SDK
Claude Agent SDK
Use Securitytrails MCP with Claude Agent SDK

OpenClaw
Use Securitytrails MCP with OpenClaw

Hermes
Use Securitytrails MCP with Hermes
Atomic Agent
Use Securitytrails MCP with Atomic Agent
Google ADK
Use Securitytrails MCP with Google ADK
LangChain
Use Securitytrails MCP with LangChain
Vercel AI SDK
Use Securitytrails MCP with Vercel AI SDK
Mastra AI
Use Securitytrails MCP with Mastra AI
LlamaIndex
Use Securitytrails MCP with LlamaIndex
CrewAI
Use Securitytrails MCP with CrewAI
Pydantic AI
Use Securitytrails MCP with Pydantic AI
AutoGen
Use Securitytrails MCP with AutoGen
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Frequently asked questions
Start with Securitytrails.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Securitytrails 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
