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Best MCP servers for debugging

We found 90 MCP servers for debugging in the catalog; these are the 15 that rank highest. The order comes from our rank, which weighs adoption, freshness, documentation and publisher identity. Nobody can pay for a place on this list. Measure, Firefox DevTools MCP and Sentry MCP lead it. Measure, Sentry MCP and Gemini Cloud Assist MCP are published by the company that makes them. Chrome DevTools MCP has the most GitHub stars here (54,084). 14 of the 15 had activity in the last 30 days. Remote servers need no local install; local ones run on your machine and can reach local files. Each entry lists why it made the list and links to its install page.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

Top 15 of 90

  1. 1
    Measure

    measure.shOfficial

    Get to the root cause of mobile app crashes, errors & slow traces with Measure MCP

    • Published by the vendor
    • 1.4K GitHub stars
    • Remote server, no local install

    ★ 1.4KLast active Oct 21, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf

  2. 2
    Firefox DevTools MCP

    mozilla

    Control and debug Firefox: navigate, fill forms, inspect network and console, profile.

    • Active in the last 30 days
    • Open source (MIT OR Apache-2.0)

    ★ 518↓ 4.6K/wkLast active Oct 22, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  3. 3
    Sentry MCP

    getsentryOfficial

    MCP server for Sentry - error monitoring, issue tracking, and debugging for AI assistants

    • Published by the vendor
    • Runs locally or as a remote server
    • Active in the last 30 days

    ★ 944Last active Oct 22, 2026Local (stdio), Remote (HTTP)Claude Code, VS Code, Codex, Cursor +2

  4. 4
    Gemini Cloud Assist MCP

    GoogleCloudPlatformOfficial

    MCP Server for understanding, managing & troubleshooting your GCP environment.

    • Published by the vendor
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 70↓ 59/wkLast active Oct 17, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  5. 5
    mcp-debugger

    debugmcp

    Step-through debugging for AI agents: breakpoints, stepping and live variables in nine languages

    • Active in the last 30 days
    • Open source (MIT)

    ★ 179↓ 2.3K/wkLast active Oct 21, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  6. 6
    Chrome DevTools MCP

    ChromeDevTools

    MCP server for Chrome DevTools

    • Most GitHub stars here (54,084)
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 54.1KLast active Oct 23, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  7. 7
    Amazon EKS MCP Server

    eks-mcp.us-east-1.api.aws

    AI-powered Amazon EKS cluster management and troubleshooting

    • Most weekly downloads here (416.2K)
    • Open source (Apache-2.0)

    ↓ 416.2K/wkLast active Jan 29, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  8. 8
    Linux MCP Server

    rhel-lightspeed

    MCP server for read-only Linux system administration, diagnostics, and troubleshooting

    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 315↓ 622/wkLast active Oct 24, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  9. 9
    MsgPack (LsMsgPack)

    mlsomers

    Decodes MsgPack (LsMsgPack schemas, type ids) as text and reads it from variables while debugging.

    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 36Last active Oct 22, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  10. 10
    Abap Adt MCP

    williansaez

    ABAP development from Claude and other MCP hosts: source, transports, tests, ATC, debugger

    • Active in the last 30 days
    • Open source (MIT)

    ★ 15Last active Oct 21, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  11. 11
    Xdebug

    kpanuragh

    MCP server for PHP Xdebug debugging with breakpoints, stepping, and variable inspection

    • Active in the last 30 days
    • Open source (MIT)

    ★ 28Last active Oct 2, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  12. 12
    .NET Debugger for MCP

    nevse

    Give an AI agent a real.NET debugger: breakpoints, stepping, locals, expression evaluation.

    • Active in the last 30 days
    • Open source (MIT)

    ★ 9Last active Oct 22, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  13. 13
    ADCIRC Model Setup MCP Server

    mansurjisan

    ADCIRC model configuration debugging, parameter lookup, and validation

    • Active in the last 30 days
    • Open source (MIT)

    ★ 10↓ 74/wkLast active Oct 20, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  14. 14
    ADCIRC Model Setup MCP Server

    oceanmodeling

    ADCIRC model configuration debugging, parameter lookup, and validation

    • Active in the last 30 days
    • Open source (MIT)

    ★ 10↓ 74/wkLast active Oct 20, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  15. 15
    joLink

    L1ch404

    A lightweight Java IDE for AI agents: incremental builds, fast tests, HotSwap and live debugging.

    • Active in the last 30 days
    • Open source (MIT)

    ★ 3↓ 170/wkLast active Oct 21, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

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