io.github.airbuzz/syncpen-mcp
Syncpen
The markdown workspace your AI can read, search, and suggest edits in — every change signed.
alive probed 2026-10-14
20tools
3.5ktokens in Claude Opus 5.5
3.7ktokens in Claude Code
1.7 %of a 200k context window
2.0ko200k_base estimate
215 msto initialize
4 msto list tools
- Run it
- npx -y syncpen-mcp@1.6.3 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- syncpen 1.6.3
- Capabilities
- resources, tools
- Instructions
- 1 363 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/airbuzz/syncpen-mcp
- Website
- https://www.syncpen.io
- Registry
- active, updated 2026-07-02 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| syncpen_suggest_edit | 265 | 13 % |
| syncpen_publish | 247 | 12 % |
| syncpen_recent_changes | 162 | 8 % |
| syncpen_search | 147 | 7 % |
| syncpen_list_suggestions | 101 | 5 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.airbuzz/syncpen-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.