io.github.chrisgleissner/c64bridge
C64 Bridge
MCP server for Commodore 64 Ultimate hardware and VICE emulator control.
alive probed 2026-10-15
17tools
57ktokens in Claude Opus 5.5
58ktokens in Claude Code
28.7 %of a 200k context window
31ko200k_base estimate
2.2 sto initialize
24 msto list tools
- Run it
- npx -y c64bridge@1.0.5 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- c64bridge 1.0.5
- Capabilities
- prompts, resources, tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/chrisgleissner/c64bridge
- Website
- https://github.com/chrisgleissner/c64bridge
- Registry
- active, updated 2026-10-15 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| c64_sound | 4 888 | 16 % |
| c64_memory | 3 047 | 10 % |
| c64_program | 3 043 | 10 % |
| c64_debug | 2 978 | 9 % |
| c64_graphics | 2 739 | 9 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.chrisgleissner/c64bridge)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.