Source Map Parser MCP

🌐 语言: English | 简体中文 This project implements a WebAssembly-based Source Map parser that can map JavaScript error stack traces back to source code and extract relevant context information. Developers can easily map JavaScript error stack traces back to source code for quick problem identification and resolution. This documentation aims to help developers better understand and use this tool.

People connecting maps & location tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2025-09-28 · ★ 2 · #36 OF 56 MAINTAINED MAPS & LOCATION · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Source Map Parser MCP

before you install - you'll need

Set SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE before connecting.

Claude Code

claude mcp add masonchow-source-map-parser-mcp -- npx -y source-map-parser-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "masonchow-source-map-parser-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "source-map-parser-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package source-map-parser-mcp - unscoped; check the name against the project README before installing

registry namespace io.github.MasonChow is GitHub-verified and matches the repo owner

03 · What Source Map Parser MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Limitations (from the README)

1. Source Map Files: Ensure that the provided Source Map file address is accessible and the file format is correct. 2. Error Handling: During parsing, network errors, file format errors, and other issues may be encountered; it's recommended to implement proper error handling when making calls.

Latest releases

v1.6.0 · 2025-09-28

Release/1.6.0

v1.5.0 · 2025-09-26

支持自定义 mcp 服务使用 source map 工具

v1.4.2 · 2025-09-26

04 · Who maintains Source Map Parser MCP

source-map-parser-mcp is maintained by masonchow. It's the only MCP server we track from this author; the repo dates to Apr 2025.

05 · Facts

repository: github.com/masonchow/source-map-parser-mcp
category: maps & location - ranked #36 of 56 actively-maintained maps & location servers as of 2026-08-25.
registry: io.github.MasonChow/source-map-parser-mcp (active, first published 2025-09-10)
packages: npm:source-map-parser-mcp

06 · Source Map Parser MCP FAQ

What is Source Map Parser MCP?

Is Source Map Parser MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2025-09-28. We re-verify nightly.

How do I install Source Map Parser MCP?

Run `npx -y source-map-parser-mcp`. The README documents one environment variable (SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE) to set first. Set SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE before connecting. You can also paste the ready-made client config above.

Does Source Map Parser MCP run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Source Map Parser MCP

Alternatives to Source Map Parser MCP

Maintained maps & location servers if Source Map Parser MCP isn't the fit.

More maps & location MCP servers · Measure Space MCP Server · Commutescout · Opencage Geocoding MCP · Optifeed Radar

More TypeScript MCP servers · Mastercard Developers MCP · Mastyf AI · Google MCP · Remi · CAD MCP Server · see all