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mcp-server-everything-sse

Verified Safe

by namm163

Overview

A test server for developers building Model Context Protocol (MCP) clients, demonstrating various MCP features like tools, prompts, resources, and sampling.

Installation

Run Command
npx @modelcontextprotocol/server-everything

Environment Variables

  • PORT

Security Notes

The 'printEnv' tool exposes all server-side environment variables, which can lead to information disclosure if sensitive data is stored in environment variables and accessed by an unauthorized client. The 'zip' tool fetches arbitrary URLs, posing a Server-Side Request Forgery (SSRF) risk if a malicious client provides internal or sensitive URLs. CORS is configured with 'origin: "*"' in sse.ts and streamableHttp.ts, which is insecure for production environments. These issues are noted in the context of a test server; no 'eval', child_process execution, or hardcoded secrets were found.

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Stats

Interest Score0
Security Score7
Cost ClassMedium
Avg Tokens150
Stars0
Forks0
Last Update2025-11-24

Tags

MCPTest ServerClient DevelopmentProtocolDemonstration