Documentation MCP Server

MCP Language Server

Name: MCP Language Server
Author: isaacphi

MCP Language Server helps MCP enabled clients navigate codebases more easily by giving them access to semantic tools like get definition, references, rename, and diagnostics.

Scan flagged something by isaacphi1,491BSD-3-ClauseGoIntermediatestdio

View on GitHub Install Guide

Install

No auto-install command available for this server.

Check the GitHub repository for setup instructions

Safety Report

67% Scan flagged something

Scanned 5 months ago

4 passed 1 warnings 1 failed

Security

Authentication

details

No authentication mechanism detected in source code

Fail

CORS Policy

details

No CORS-relevant transport detected (likely stdio)

N/A

Rate Limiting

details

No rate limiting mechanism detected

Info

Known CVEs

details

No known CVEs in dependencies

Pass

Code Quality

Dependency Audit

details

No known vulnerable dependencies detected

Pass

Dangerous Patterns

details

No dangerous code patterns detected

Pass

License

details

License: BSD-3-Clause

Pass

Community

Maintenance Status

details

Last commit 6 months ago

Warning

Learn about our security methodology →

Frequently Asked Questions

What is MCP Language Server?

MCP Language Server helps MCP enabled clients navigate codebases more easily by giving them access to semantic tools like get definition, references, rename, and diagnostics.

Is MCP Language Server safe to use?

We cannot tell you that, and nobody scanning at this scale can. What we did in March 2026 was shallow-clone MCP Language Server and run five keyword searches over its source: auth identifiers, CORS configuration, rate-limit identifiers, the dependency manifest against a hardcoded list of 18 known-vulnerable packages, and unguarded eval/exec calls. At least one matched — the specific finding is in the scan report on this page. A text search cannot follow a variable, judge intent, or tell you what a server does once it is running, so "nothing matched" is not "safe". What the scan does and does not cover is written out at /mcp/security.

What are alternatives to MCP Language Server?

Similar MCP servers include Figma Context MCP, Git MCP, Firebase MCP. Each serves a similar purpose but may differ in features, language, and compatibility.