Threat Intelligence API
Powerful REST API for domain, IP, and URL reputation checking. Get started in minutes with our SDKs and comprehensive documentation.
Simple Integration
curl -X GET "https://api.ismalicious.com/v1/lookup/domain/example.com" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json"API Features
Everything you need to integrate threat intelligence into your applications.
Single Lookup API
Real-time entity checking and risk scoring with instant results.
Bulk Lookup API
High-throughput batch processing for checking thousands of entities.
Streaming API
Real-time threat feed subscriptions for continuous protection.
Webhooks
Event-driven notifications for alerts and monitoring changes.
SDKs & Libraries
Official SDKs for Python, Node.js, Go, and Rust.
NewAPI Playground
Interactive testing environment to try the API without code.
Rate Limits
Understanding rate limits and optimizing API usage.
Authentication
API key management and authentication methods.
Changelog
Latest API updates, features, and deprecations.
What is the isMalicious API?
The isMalicious API provides programmatic access to our comprehensive threat intelligence database, enabling developers and security teams to integrate real-time domain, IP, and URL reputation checking into any application. With a simple REST interface and sub-100ms response times, you can protect users from malware, phishing, and other cyber threats without adding noticeable latency to your workflows.
Getting Started with Threat Intelligence APIs
Start with the free tier offering 1,000 requests per month to evaluate our data quality and integrate without upfront cost. Sign up for an account, generate an API key from your dashboard, and use our official SDKs for Python, Node.js, Go, or Rust to make your first request in minutes. The interactive API Playground lets you test queries without writing code.
Enterprise-Grade Reliability
Our API infrastructure is designed for mission-critical security applications with a 99.9% uptime SLA, global edge deployment for low latency worldwide, and automatic failover to ensure continuous availability. Enterprise customers benefit from dedicated support, custom rate limits, and optional private cloud deployment for maximum security and compliance.
Comprehensive Documentation and Support
Every API endpoint is thoroughly documented with request/response schemas, code examples in multiple languages, and detailed explanations of each data field. Our developer community forum provides peer support, and paid plans include access to our support team via email and chat. API status and incident communications are available on our public status page.
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