urlDNA
MCP ServerFree** - Dynamically scan and analyze potentially malicious URLs using the [urlDNA](https://urlDNA.io)
Capabilities4 decomposed
dynamic-url-malice-scanning-via-mcp
Medium confidenceScans and analyzes URLs for malicious characteristics by integrating with the urlDNA threat intelligence API through the Model Context Protocol (MCP) interface. The MCP server acts as a bridge between LLM applications and urlDNA's backend scanning engine, allowing language models to invoke URL analysis as a native tool without direct API management. Requests are routed through MCP's standardized tool-calling mechanism, enabling asynchronous threat detection with structured JSON responses containing risk indicators, classification, and metadata.
Implements URL threat scanning as a native MCP tool, allowing seamless integration into LLM agent workflows without requiring developers to manage API authentication, serialization, or error handling — the MCP server abstracts urlDNA's HTTP API into a standardized tool-calling interface compatible with Claude and other MCP clients
Provides tighter LLM integration than direct API calls by leveraging MCP's tool-calling protocol, eliminating boilerplate authentication and serialization code while enabling Claude to invoke URL scanning as a first-class capability
threat-classification-and-risk-scoring
Medium confidenceAnalyzes scanned URLs and returns structured threat classifications (safe, suspicious, malicious) along with confidence scores and risk indicators. The urlDNA backend applies machine learning models and heuristic analysis to categorize URLs based on patterns including domain reputation, SSL certificate validity, content analysis, and known threat databases. Results are returned as JSON objects containing classification labels, numerical risk scores, and detailed threat metadata that can be consumed by downstream LLM reasoning or automated decision-making systems.
Integrates urlDNA's proprietary threat classification models through MCP, providing LLM agents with structured risk assessments that include confidence scores and threat type indicators — enabling nuanced decision-making beyond binary safe/unsafe verdicts
Offers more granular threat classification than simple URL blocklists by combining reputation analysis, heuristics, and ML models; stronger than basic domain reputation checks because it analyzes content and behavioral patterns
mcp-tool-registration-and-invocation
Medium confidenceRegisters URL scanning as a callable tool within the MCP protocol, allowing LLM clients (Claude, etc.) to discover and invoke URL analysis through standardized tool-calling mechanisms. The MCP server exposes a tool schema defining input parameters (URL), output structure (threat report), and metadata, enabling the LLM to autonomously decide when to scan URLs based on context. Tool invocation is handled through MCP's request/response protocol, with the server translating tool calls into urlDNA API requests and marshaling responses back to the client.
Implements MCP tool registration following the Model Context Protocol specification, enabling declarative tool discovery and autonomous invocation by LLMs — the server handles all protocol marshaling, allowing clients to treat URL scanning as a native capability without API management
Cleaner integration than custom function-calling implementations because it uses standardized MCP tool schema and invocation patterns; more discoverable than direct API integration because the LLM can reason about tool availability and applicability
batch-url-analysis-orchestration
Medium confidenceProcesses multiple URLs in sequence or parallel through the MCP interface, coordinating individual URL scans and aggregating threat reports into a consolidated analysis. The implementation likely queues URL scan requests, manages API rate limits, and collects results into a structured batch report. This enables workflows where an LLM agent needs to validate multiple URLs (e.g., from a document, email, or user input) and make decisions based on aggregate threat levels across the batch.
Orchestrates multiple URL scans through MCP while managing API rate limits and aggregating results into a consolidated threat report — the server abstracts the complexity of batch coordination, allowing LLMs to submit URL lists and receive aggregate threat analysis without managing individual API calls
More efficient than sequential manual API calls because it handles rate limiting and result aggregation; better than naive parallel scanning because it respects API quotas and prevents rate-limit errors
Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.
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Best For
- ✓AI application developers building security-aware agents
- ✓teams integrating threat detection into LLM-powered workflows
- ✓security-focused builders using Claude or other MCP-compatible models
- ✓developers building content moderation systems with URL validation
- ✓security teams building automated threat response systems
- ✓LLM application developers implementing content safety guardrails
- ✓compliance-focused organizations requiring threat audit trails
- ✓developers building user-facing safety warnings and URL validation
Known Limitations
- ⚠Depends on urlDNA API availability and rate limits — no local fallback for offline scanning
- ⚠MCP protocol adds request/response serialization overhead (~50-200ms per scan)
- ⚠No caching layer built into the MCP server — repeated scans of identical URLs hit the API each time
- ⚠Requires active internet connection to reach urlDNA backend — cannot function in air-gapped environments
- ⚠Limited to urlDNA's threat database — cannot integrate with alternative threat intelligence providers without forking
- ⚠Classification accuracy depends on urlDNA's threat database freshness — zero-day threats may not be detected
Requirements
Input / Output
UnfragileRank
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About
** - Dynamically scan and analyze potentially malicious URLs using the [urlDNA](https://urlDNA.io)
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