C64 Bridge MCP Server

Your AI Command Bridge for the Commodore 64. C64 Bridge is an MCP server for controlling and working with a Commodore 64 from an AI client. Its README documents 6 tools, including c64_batch, c64_config, c64_debug. It runs locally over stdio via the published package.

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

VERIFIED ACTIVE

LAST COMMIT 2026-08-17 · ★ 33 · #28 OF 155 MAINTAINED MEDIA · VERIFIED 2026-08-25

GPL-2.0 · TypeScript servers · how we verify → /methodology

01 · Install C64 Bridge

before you install - you'll need

Set VICE_ARGS, VICE_WARP, C64BRIDGE_CONFIG, C64U_HOST, C64U_PORT, C64U_PASSWORD, LOG_LEVEL, VICE_BINARY, VICE_DIRECTORY, C64BRIDGE_POLL_MAX_MS before connecting. C64_MODE, VICE_VISIBLE are optional or environment-specific per the README.

Claude Code

claude mcp add chrisgleissner-c64bridge -- npx -y c64bridge

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "chrisgleissner-c64bridge": {
      "command": "npx",
      "args": [
        "-y",
        "c64bridge"
      ]
    }
  }
}

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 GPL-2.0 - declared in the repository

npm package c64bridge - unscoped; check the name against the project README before installing

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

03 · What C64 Bridge can do

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

What you can build

An agent gets 6 documented tools, including c64_batch, c64_config, c64_debug, c64_disk, c64_drive.

The 6 tools it gives your agent

Extracted from the project's README - what C64 Bridge lets an agent do.

c64_batch: - Execute multiple c64bridge tool calls in a single request. Reduces latency for multi-step workflows.
c64_config: - Grouped entry point for configuration reads/writes, diagnostics, and snapshots.
c64_debug: - Grouped entry point for VICE debugger operations (breakpoints, registers, stepping).
c64_disk: - Grouped entry point for disk mounts, listings, image creation, and program discovery.
c64_drive: - Grouped entry point for drive power, mode, reset, and ROM operations.
c64_extract: - Grouped entry point for sprite/charset extraction, memory dumps, filesystem stats, and firmware health checks.

Latest releases

1.0.2 · 2026-08-07

resolve open Dependabot dependency alerts

1.0.1 · 2026-07-20

make program-run polling truthful instead of assuming blind success · restore C64BRIDGE_SKIP_AUTO_START after dynamic import instead of leaving it set process-wide · use an impossible fixture path so the vice-leak…

1.0.0 · 2026-07-14

Added support for Ultimate REST API features introduced in Ultimate 64 firmware 3.15: · CIA1-level keyboard and joystick injection · Menu screen access, including text and colors · Added Ultimate II cartridge support…

04 · Who maintains C64 Bridge

C64 Bridge is maintained by chrisgleissner. It's the only MCP server we track from this author; the repo dates to Oct 2025.

05 · Facts

repository: github.com/chrisgleissner/c64bridge
website: https://github.com/chrisgleissner/c64bridge
category: media - ranked #28 of 155 actively-maintained media servers as of 2026-08-25.
release cadence: 4 releases in the last 90 days (latest 2026-08-07)
registry: io.github.chrisgleissner/c64bridge (active, first published 2026-03-27 · 7 versions)
packages: npm:c64bridge

06 · C64 Bridge FAQ

Is C64 Bridge still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-17 and it shipped 4 releases in the last 90 days. We re-verify nightly.

What can C64 Bridge do?

An agent gets 6 documented tools, including c64_batch, c64_config, c64_debug, c64_disk, c64_drive.

How do I install C64 Bridge?

Run `npx -y c64bridge`. The README documents 12 environment variables (C64_MODE, VICE_VISIBLE, VICE_ARGS…) to set first. Set VICE_ARGS, VICE_WARP, C64BRIDGE_CONFIG, C64U_HOST, C64U_PORT, C64U_PASSWORD, LOG_LEVEL, VICE_BINARY, VICE_DIRECTORY, C64BRIDGE_POLL_MAX_MS before connecting. C64_MODE, VICE_VISIBLE are optional or environment-specific per the README. You can also paste the ready-made client config above.

Does C64 Bridge 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 C64 Bridge

Alternatives to C64 Bridge

Maintained media servers if C64 Bridge isn't the fit.

More media MCP servers · Apple Music · Crompton Network · Clipkit · Clueso · Clipboard

More TypeScript MCP servers · Proletariat CLI · Chrome DevTools MCP · Fluxmail · Churnkey · Pipedrive CRM · see all