MCP Inspector✓ Official

Visual testing tool for MCP servers

→ modelcontextprotocol/inspector · listed on mcp_so

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// key findings

⚠️

Known vulnerabilities in dependencies: 1 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.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 1 credential: MCP_PROXY_AUTH_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configALLOWED_ORIGINS

configCLIENT_PORT— 8080 SERVER_PORT=9000 npx @modelcontextprotocol/inspector node build/index.js

configDANGEROUSLY_OMIT_AUTH— If you need to disable authentication (NOT RECOMMENDED), you can set the environment variable:

configHOST— e =0.0.0.0 \

configINSPECTOR_URL

configMCP_AUTO_OPEN_ENABLED— e =false \

configMCP_ENV_VARS

🔐 secretMCP_PROXY_AUTH_TOKEN— You can also set the token via the environment variable when starting the server:

configSERVER_PORT— CLIENT_PORT=8080 =9000 npx @modelcontextprotocol/inspector node build/index.js

// 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 1 concrete improvement 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/modelcontextprotocol-inspector-1s6983)](https://m8ven.ai/mcp/modelcontextprotocol-inspector-1s6983)

commit: f18775a1a5f3bd4b319763b4c12b3230091dd122

code hash: 4641ba3de897b7a7dec58942fdbadd685f96e8c89875e10d06cf5c4dfc2bf6aa

verified: 5/29/2026, 11:57:43 AM

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