Geargrafx MCP Server

Geargrafx is a very accurate, cross-platform TurboGrafx-16 / PC Engine / SuperGrafx / PCE CD-ROM² emulator written in C++ that runs on Windows, macOS, Linux, BSD and RetroArch, with an embedded MCP server for AI debugging and development.

People who need developer tools tools inside Claude, Cursor, VS Code, or another MCP client. The project is written in C++.

VERIFIED ACTIVE

LAST COMMIT 2026-08-24 · ★ 230 · #86 OF 139 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-08-25

GPL-3.0 · C++ · how we verify → /methodology

01 · Install Geargrafx MCP Server

before you install - you'll need

Set SDL3_TAG, USE_CLANG before connecting.

Claude Desktop

Settings → Extensions → Install, then select the https://github.com/drhelius/geargrafx/releases/download/1.7.18/Geargrafx-1.7.18-mcpb-macos-arm64.mcpb .mcpb bundle

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 Claude Desktop extension (.mcpb bundle)

license GPL-3.0 - declared in the repository

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

03 · What Geargrafx MCP Server can do

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

Latest releases

1.7.18 · 2026-08-22

Performance optimizations · Improved CD-ROM accuracy · Improved VGM recorder with precise timing · Added Sharp Bilinear shaders · Improved MCP server · Improved Trace Logger in debugger · Updated Game Controller DB…

1.7.17 · 2026-08-07

Improved Arcade Card accuracy · Applied audio DC filtering across all chip revisions · Added command-line option for portable mode · Improved MCP Server implementation · libretro VFS support · Improved compatibility in…

1.7.16 · 2026-07-24

[mcp] Hardened server protocol compliance with version negotiation and validation · [mcp] Added tool behavior annotations · [mcp] Improved HTTP transport reliability and error handling · Many bug fixes and improvements

04 · Who maintains Geargrafx MCP Server

Geargrafx MCP Server is maintained by drhelius. We track 4 MCP servers from drhelius - 4 actively maintained, 1,944 combined GitHub stars, oldest repo from Jul 2012. Full record: all servers from drhelius.

05 · Facts

repository: github.com/drhelius/geargrafx
category: developer tools - ranked #86 of 139 actively-maintained developer tools servers as of 2026-08-25.
release cadence: 10+ releases in the last 90 days (latest 2026-08-22)
registry: io.github.drhelius/geargrafx (active, first published 2025-12-13 · 25 versions)
packages: mcpb:https://github.com/drhelius/geargrafx/releases/download/1.7.18/Geargrafx-1.7.18-mcpb-macos-arm64.mcpb · mcpb:https://github.com/drhelius/geargrafx/releases/download/1.7.18/Geargrafx-1.7.18-mcpb-macos-x64.mcpb · mcpb:https://github.com/drhelius/geargrafx/releases/download/1.7.18/Geargrafx-1.7.18-mcpb-windows-arm64.mcpb · mcpb:https://github.com/drhelius/geargrafx/releases/download/1.7.18/Geargrafx-1.7.18-mcpb-windows-x64.mcpb · mcpb:https://github.com/drhelius/geargrafx/releases/download/1.7.18/Geargrafx-1.7.18-mcpb-linux-x64.mcpb · mcpb:https://github.com/drhelius/geargrafx/releases/download/1.7.18/Geargrafx-1.7.18-mcpb-linux-arm64.mcpb

06 · Geargrafx MCP Server FAQ

What is Geargrafx MCP Server?

Is Geargrafx MCP Server still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-24 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

07 · Alternatives to Geargrafx MCP Server

Alternatives to Geargrafx MCP Server

Maintained developer tools servers if Geargrafx MCP Server isn't the fit.

Pairs well with

Servers that cover what Geargrafx MCP Server doesn't - only shown when the pairing reason fits the companion.

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