io.github.mrfentmen/rom-mcp
rom-mcp
Search ROMs across Internet Archive, ROMsgames, CoolROM, and more. Verify checksums and parse saves.
alive probed 2026-10-15
14tools
2.3ktokens in Claude Opus 5.5
2.5ktokens in Claude Code
1.2 %of a 200k context window
1.3ko200k_base estimate
241 msto initialize
7 msto list tools
- Run it
- npx -y @mrfentmen/rom-mcp@1.2.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- rom-mcp 1.1.0
- Capabilities
- 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/mrfentmen/rom-mcp
- Registry
- active, updated 2026-09-21 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| search_reddit_roms | 127 | 10 % |
| search_all_sources | 121 | 10 % |
| match_by_checksum | 106 | 8 % |
| search_rom | 103 | 8 % |
| download_rom | 102 | 8 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.mrfentmen/rom-mcp)
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.