MCP Language Server - MCP App for ChatGPT, Claude & AI Assistants | MCP App Store

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MCP Language Server

Supports UI

by isaacphi

Give MCP clients access to semantic code tools like get definition, references, rename, and diagnostics.

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Works in:claude

Exposes:Tools

View on GitHub Docs

What it does\nConnects LLMs to existing Language Server Protocol (LSP) servers, allowing AI models to navigate complex codebases with semantic precision rather than just text search.\n\n## Tools\n- `definition`: Retrieves the complete source code definition of any symbol.\n- `references`: Locates all usages and references of a symbol throughout the codebase.\n- `diagnostics`: Provides diagnostic information for a specific file, including warnings and errors.\n- `hover`: Displays documentation and type hints for a given location.\n- `rename_symbol`: Renames a symbol across the project.\n- `edit_file`: Performs precise text edits based on line numbers.\n\n## Installation\nAdd this to your `claude_desktop_config.json`:\n\n`json\n{\n "mcpServers": {\n "language-server": {\n "command": "mcp-language-server",\n "args": ["--workspace", "/path/to/your/project", "--lsp", "gopls"]\n }\n }\n}\n`\n(Replace `gopls` with your desired LSP like `rust-analyzer` or `pyright-langserver`).\n\n## Supported hosts\n- Claude Desktop

Quick install

go install github.com/isaacphi/mcp-language-server@latest

Information

Pricing: free
Published: 4/19/2026
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Related Apps

Choose your AI client and follow the steps below.

Claude Desktop

{\n  "mcpServers": {\n    "language-server": {\n      "command": "mcp-language-server",\n      "args": ["--workspace", "/path/to/project", "--lsp", "lsp-binary"]\n    }\n  }\n}