Bring Osint
to Pydantic AI
Create your Vinkius account to connect SecurityTrails to Pydantic AI and start using all 10 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the SecurityTrails MCP Server?
Connect your SecurityTrails account to any AI agent and empower your OSINT, bug bounty, and threat intelligence workflows with the world's most comprehensive domain and IP database.
What you can do
- Attack Surface Mapping — Instantly enumerate all subdomains for any target organization to map their external footprint
- Historical DNS Analysis — Look back in time at DNS records (A, MX, NS, TXT) to find hidden infrastructure, bypassed firewalls, or legacy systems
- Reverse IP Lookups — Find all domains hosted on a specific IP address to identify shared hosting or related corporate assets
- Advanced Threat Hunting — Use the SecurityTrails DSL (Domain Specific Language) to query the entire internet for specific tech stacks or vulnerable infrastructure
- Ownership Intelligence — Access current and historical WHOIS records to track domain ownership changes and unmask hidden threat actors
- Corporate Associations — Discover domains strongly associated with your primary target to expand your investigation scope
How it works
- Subscribe to this server
- Sign up at SecurityTrails to get your API key (Free tier available)
- Run intelligence queries directly from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Security Researchers & Pentesters — accelerate recon and asset discovery during engagements
- Bug Bounty Hunters — find forgotten subdomains and out-of-scope assets associated with target companies
- Threat Intelligence Analysts — correlate IPs, domains and WHOIS records to track APT infrastructure
- Brand Protection Teams — identify typosquatting and malicious domains targeting your organization
- System Administrators — audit their own external attack surface and verify DNS propagation
Built-in capabilities (10)
Check current SecurityTrails API quota usage
Great for expanding the scope of an investigation. Find other domains associated with a target domain
Useful for finding old IPs that might still be hosting vulnerable software, or tracking infrastructure migration over time. Retrieve historical DNS records for a domain
Essential for mapping out a target domain's existing infrastructure. Get complete domain intelligence and current DNS records
Get classification tags for a domain
Essential for understanding shared hosting environments or identifying hidden vhosts. Find all domains pointed to a specific IP address
Critical for attack surface mapping and asset discovery. Returns both active and inactive subdomains. Discover all subdomains for a given domain
Get current WHOIS information for a domain
Useful for OSINT investigations to uncover historical owners before privacy protection was enabled. Retrieve historical WHOIS records for a domain
Examples: `ipv4="1.1.1.1" AND mx="alt1.aspmx.l.google.com"` or `whois_email="admin@example.com"`. Check SecurityTrails docs for full DSL syntax. Advanced search using SecurityTrails DSL
Why Pydantic AI?
Pydantic AI validates every SecurityTrails tool response against typed schemas, catching data inconsistencies at build time. Connect 10 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.
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Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application
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Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your SecurityTrails integration code
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Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors
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Dependency injection system cleanly separates your SecurityTrails connection logic from agent behavior for testable, maintainable code
SecurityTrails in Pydantic AI
Why run SecurityTrails with Vinkius?
The SecurityTrails connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 10 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.
* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect SecurityTrails using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
SecurityTrails and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect SecurityTrails to Pydantic AI through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
SecurityTrails for Pydantic AI
Every request between Pydantic AI and SecurityTrails is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
Is the SecurityTrails API free to use?
SecurityTrails offers a Free Tier API plan which allows 50 API requests per month. This is excellent for specific, targeted OSINT investigations. For automated or large-scale recon, you would need a commercial subscription.
What is historical DNS good for?
Companies often migrate infrastructure and hide behind WAFs like Cloudflare. Historical DNS reveals the original origin IP addresses used before the WAF was implemented, which might still be active and vulnerable to direct attacks. It's a critical tool in penetration testing.
How can I find related domains for a target company?
Use the get_associated_domains tool. It uses proprietary correlation to find other domains owned by the same entity. You can also use get_domains_by_ip to find what else is hosted on their IP space.
How does Pydantic AI discover MCP tools?
Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.
Does Pydantic AI validate MCP tool responses?
Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.
Can I switch LLM providers without changing MCP code?
Absolutely. Pydantic AI abstracts the model layer. your SecurityTrails MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.
MCPServerHTTP not found
Update: pip install --upgrade pydantic-ai
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