Monitoring · Developer Tools

Source Map Parser logo

Source Map Parser

masonchow/source-map-parser-mcp

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.

Install

npx -y source-map-parser-mcp@latest

Environment variables

SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZESOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE
GitHub stars
2
Category
Monitoring, Developer Tools
License
MIT
Updated
Oct 6, 2026

Features

  • Stack Parsing: Parse the corresponding source code location based on provided line number, column number, and Source Map file.

  • Batch Processing: Support parsing multiple stack traces simultaneously and return batch results.

  • Context Extraction: Extract context code for a specified number of lines to help developers better understand the environment where errors occur.

  • Context Lookup: Look up original source code context for specific compiled code positions.

  • Source Unpacking: Extract all source files and their content from source maps.

Tools (5)

  • operating_guide

    Get usage instructions for the MCP service.

  • parse_stack

    Parse stack information by providing stack traces and Source Map addresses.

  • lookup_context

    Look up original source code context for a specific line and column position in compiled/minified code.

  • unpack_sources

    Extract all source files and their content from a source map.

  • token

    The Token object returned when parsing is successful, containing source code line number, column number, context code, and other information.

Details on this page are taken from the project's README. Open README

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