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How to connect Securitytrails to Claude

Connect Claude Web, Desktop and Cowork 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.

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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.

12 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Securitytrails account to Claude via Composio Connect, enabling 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, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Securitytrails with

OpenAI Agents SDKClaude Agent SDKClaude CodeCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Securitytrails to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Securitytrails account

Back in Claude, ask it to connect to Securitytrails or give it any Securitytrails-related task.

For example, ask Claude 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"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Securitytrails account is ready to use.

What is the Securitytrails Claude Connector, 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.

Troubleshooting

1. Why does Claude not use the Composio connector for Securitytrails?

The connector can show as connected, but Claude must use it in each Securitytrails conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Securitytrails again.

2. Why does Claude show an MCP server error before Securitytrails connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Securitytrails.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Securitytrails.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Securitytrails authorization link not work?

The Composio connector is one server. Your Securitytrails account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Securitytrails connection.
  • Composio creates a fresh Securitytrails authorization link.
  • Open that link in your browser and finish the Securitytrails sign-in.

4. Why do Securitytrails actions fail after they worked before?

The Securitytrails connection can expire or lose permission.

  • Ask Claude to inspect the Securitytrails connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Securitytrails account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Securitytrails.
  • If the action still fails with a permission error, check that the connected account has that permission in Securitytrails itself.

5. How do I switch to a different Securitytrails account?

Claude can manage the Securitytrails connection for you.

  • Ask Claude to disconnect or delete the current Securitytrails account.
  • Ask Claude to connect Securitytrails again.
  • Open the new Composio authorization link for Securitytrails.
  • Sign in with the other Securitytrails account in the browser.
  • After the account connects, ask Claude to retry the Securitytrails task.

6. Why is my Securitytrails connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Securitytrails connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Securitytrails tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Securitytrails.
TOOLS

Supported Tools

Every Securitytrails action and event your agent gets out of the box.

Bulk Static Asset Rules

Bulk add or remove static asset rules for a SecurityTrails ASI project.

Get Company Associated IPs

Tool to retrieve IPs associated with a company domain.

Get Domain Details

Retrieves comprehensive domain information from SecurityTrails including current DNS records, infrastructure details, and statistics.

Get Domain SSL

Tool to fetch current and historical SSL certificate details for a hostname.

IP Search Statistics

Fetch aggregated statistics for IP addresses matching a DSL query.

List ASI Projects

Tool to list ASI projects available to the account.

Ping

Tool to test authentication and connectivity with the SecurityTrails API.

Scroll Results

Tool to continue scrolling through DSL search results.

Search IPs

Tool to search IP addresses via SecurityTrails DSL.

SQL API Execute Query

Execute SQL-like queries against SecurityTrails data.

SQL API Scroll Results

Tool to fetch next page of SQL query results.

Temp Scrape Securitytrails Usage

Retrieve account usage information from the SecurityTrails API.

FRAMEWORKS

How to build Securitytrails MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Securitytrails MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Securitytrails MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Securitytrails MCP with Claude Code

Codex logo

Codex

Use Securitytrails MCP with Codex

OpenClaw logo

OpenClaw

Use Securitytrails MCP with OpenClaw

Hermes logo

Hermes

Use Securitytrails MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Securitytrails MCP with Atomic Agent

Google ADK logo

Google ADK

Use Securitytrails MCP with Google ADK

LangChain logo

LangChain

Use Securitytrails MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Securitytrails MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Securitytrails MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Securitytrails MCP with LlamaIndex

CrewAI logo

CrewAI

Use Securitytrails MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Securitytrails MCP with Pydantic AI

AutoGen logo

AutoGen

Use Securitytrails MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Securitytrails MCP server, the agents and LLMs can only access a fixed set of Securitytrails tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Securitytrails and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork 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 Securitytrails tools.

Yes, absolutely. You can configure which Securitytrails 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 Securitytrails data and credentials are handled as safely as possible.

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