TypeScript Definition Finder MCP Server

Locates the original definitions of TypeScript symbols, including those from imported packages, within a codebase.

Local serverstdioTypeScript

What is the TypeScript Definition Finder MCP server?

If you already use TypeScript Definition Finder, the typescript definition finder mcp server is the piece that lets your assistant work with it directly. Locates the original definitions of TypeScript symbols, including those from imported packages, within a codebase.

What the server does

A Model Context Protocol (MCP) server that helps AI code editors find TypeScript symbol definitions in your codebase. This tool is particularly useful when you need to locate the original definition of imported symbols, classes, interfaces, or functions in a TypeScript project.

  • Finds original definitions of TypeScript symbols
  • Works with imported symbols from external packages
  • Returns both the definition location and code snippet
  • Supports stdio interface for seamless integration with AI code editors

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • Examples — Given this import statement: typescript import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js"; To find the definition of

Credentials and setup notes

  • Bun v1.2.2 or later - Node.js for running the compiled server

Installation

The server ships on npm as @smithery/cli, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Where it fits

This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. TypeScript Definition Finder's toolset — Examples — is a fair guide to whether it matches your workflow. It is maintained by runninghare; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against TypeScript Definition Finder's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
ExamplesGiven this import statement: typescript import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js"; To find the definition of StdioServerTransport, which starts at column 10, you would use: json { "

How to install the TypeScript Definition Finder MCP server

{
  "mcpServers": {
    "typescript-definition-finder": {
      "command": "npx",
      "args": ["-y", "@smithery/cli"]
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

  • Bun v1.2.2 or later - Node.js for running the compiled server

Example prompts to try

  • Use TypeScript Definition Finder to Examples.

Frequently asked questions

TypeScript Definition Finder is a tool that helps you locate the original definitions of TypeScript symbols within your codebase, including those from imported packages. It's especially useful for AI code editors.