Simple MCP Server Tutorial

A beginner-friendly MCP server demonstrating core concepts with calculator operations and note management capabilities (create, read, list, and delete notes).

→ xARSENICx/simple-mcp · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 2 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

// known CVEs in dependencies2 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.0.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.0.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

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// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/xarsenicx-simple-mcp-urn989)](https://m8ven.ai/mcp/xarsenicx-simple-mcp-urn989)

commit: c9f317838241641f35c36c61fc07f7051b9c3575

code hash: ae3f7c6dee0fa7e350d193b443e6181db7bfaeffda4476c5b21a91d337f804e1

verified: 6/9/2026, 10:14:47 AM

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