MCP Recon Server

Overview

The MCP‑Recon‑Server is a lightweight, Server‑Sent Events (SSE) based Model Context Protocol service designed to streamline domain reconnaissance and vulnerability scanning for penetration testers. By exposing a set of reusable tools over MCP, it removes the need for custom integration code between an AI assistant and security tooling. Instead, a client such as Claude can simply issue high‑level requests—“scan domain X for subdomains and open ports”—and receive structured, incremental results that can be fed back into the assistant’s reasoning loop.

At its core, the server bundles a collection of reconnaissance utilities (e.g., subdomain enumeration, DNS brute‑forcing, port scanning) behind a uniform MCP interface. Each tool is wrapped in a JSON schema that describes the required inputs, expected outputs, and any optional parameters. The SSE protocol ensures that responses are streamed in real time: the AI can start processing partial data (e.g., a newly discovered subdomain) while the scan continues, enabling more interactive and efficient workflows.

Key capabilities include:

• Domain enumeration: Pulls subdomains from public sources and custom wordlists, returning a ranked list with associated metadata.
• Vulnerability scanning: Runs lightweight checks (e.g., HTTP header analysis, SSL/TLS misconfigurations) and reports findings with severity scores.
• Tool chaining: The server can invoke multiple tools sequentially or in parallel, packaging the combined output for the client.
• Incremental streaming: SSE delivers results as they are produced, reducing latency for the AI assistant and allowing real‑time feedback.
• Extensibility: Developers can add new tools by implementing a simple handler and registering it in the MCP registry, keeping the server adaptable to evolving testing needs.

Typical use cases involve integrating the server into a larger automated red‑team workflow. An AI assistant can orchestrate reconnaissance across multiple domains, aggregate findings, and even generate actionable remediation plans. In a continuous integration environment, the MCP‑Recon‑Server can be triggered by CI pipelines to perform quick security sweeps before deployments, feeding the results back into documentation or alerting systems.

Because it adheres to the MCP specification and operates over SSE, the server offers seamless compatibility with any MCP‑compliant client. Its real‑time streaming and tool‑chain orchestration give developers a powerful, low‑friction way to embed domain reconnaissance into AI‑driven security operations without reinventing the wheel.