Which integrations are available for this server?

Provides TypeScript code intelligence tools for AI coding agents, including navigation, type information, code structure, semantic search, diagnostics, and refactoring capabilities via direct TypeScript compiler API.

How do I use ts-language-mcp?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@ts-language-mcp get definition of UserService" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

ts-language-mcp

by jgauffin

Overview Schema Related Servers Score Discussions

TypeScript

Local

ts-language-mcp

npm version License: MIT GitHub issues GitHub stars

A TypeScript code intelligence server for AI coding agents via MCP (Model Context Protocol).

Why Use This?

AI coding agents working with TypeScript treat code as text — reading entire files, grepping for patterns, guessing at types. ts-language-mcp exposes TypeScript's own compiler intelligence through MCP tools:

Raw File Access	ts-language-mcp
Read entire file to find a function	Jump directly to definition
Grep for usage patterns	Get all references with read/write classification
Guess at types from context	Get exact types with full generic resolution
Hope renames don't break things	Preview and execute renames across files

Unlike LSP-based alternatives, ts-language-mcp uses the TypeScript compiler API directly — zero config, deeper intelligence (AST search, batch analysis, executable renames, project-wide diagnostics), and no external LSP server required.

Related MCP server: agent-workspace-mcp

Quick Start

# Analyze current directory
npx ts-language-mcp

# Analyze specific project
npx ts-language-mcp /path/to/typescript/project

# Custom server name
npx ts-language-mcp --name my-ts-server /path/to/project

MCP Client Configuration

Claude Code:

claude mcp add typescript -- npx ts-language-mcp /path/to/your/project

Claude Desktop, Cline, etc.:

{
  "mcpServers": {
    "typescript": {
      "command": "npx",
      "args": ["ts-language-mcp", "/path/to/your/project"]
    }
  }
}

The target project needs a tsconfig.json and TypeScript source files. The server auto-loads compiler options and watches for file changes.

Resources

typescript://project/files - List all indexed project files
typescript://project/config - Current compiler options
typescript://file/{path} - Read file content

Tools

Category	Tool	Description
Navigation	`get_definition`	Jump from usage to declaration
	`get_references`	Find all usages with read/write classification
	`get_implementations`	Find concrete implementations of interfaces
	`get_call_hierarchy`	Trace function callers / callees
	`get_type_hierarchy`	Navigate inheritance chains
Type Intelligence	`get_hover`	Type info and JSDoc at a position
	`get_signature`	Function parameter help
Code Structure	`get_symbols`	Flat list of symbols in a file
	`get_outline`	Hierarchical file structure
	`get_imports`	List all imports with details
Semantic Search	`find`	AST search by name pattern, kind, scope
	`get_workspace_symbols`	Fast fuzzy symbol search
Diagnostics	`get_diagnostics`	Errors/warnings for a file
	`get_all_diagnostics`	Project-wide diagnostics
	`get_completions`	Context-aware completions
Refactoring	`rename_preview`	Preview rename impact
	`rename_symbol`	Execute rename across project
	`format_document`	Format with built-in formatter
Efficiency	`analyze_position`	Combined analysis in one call
	`batch_analyze`	Analyze multiple positions at once

Development

npm test          # Run tests (watch)
npm run test:run  # Run tests once
npm run build     # Build
npm run dev       # Watch mode

Architecture

src/
  index.ts              # CLI entry point
  server.ts             # MCP server setup
  language-service.ts   # TypeScript Language Service wrapper
  ast-finder.ts         # AST traversal for semantic search
  tools.ts              # MCP tool definitions and handlers
  resources.ts          # MCP resource definitions
  types.ts              # Shared type definitions

License

MIT

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license - permissive license

quality - not tested

maintenance

How are these scores calculated?

Maintenance

–Maintainers

–Response time

–Release cycle

–Releases (12mo)

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