io.github.sunsatosolutions/vulcanus
Vulcanus
Is the Vulcanus MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.
A validated Markdown memory vault your coding agent can recall, project by project.
alive probed 2026-11-14 · unchanged since 2026-10-30
- Run it
- npx -y @sunsato/vulcanus@0.6.3 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- vulcanus 0.6.3
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- 0.2 % of a 1M context window
- Count
- 2.1k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 2.2k. The o200k_base estimate is 1.3k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/sunsatosolutions/Vulcanus
- Website
- https://vulcanus.sunsato.com
- Registry
- active, updated 2026-10-14 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.62×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| append_decision | 459 | 283 | 22 % |
| append_rule | 435 | 268 | 21 % |
| update_capsule | 333 | 205 | 16 % |
| search | 216 | 133 | 10 % |
| recall | 211 | 130 | 10 % |
Compare this server with others.
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Other registry entries on npmjs.com, the ones next to this name; all of them.
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Servers that mention validated or markdown.
- ai.artidrop/artidrop · alive
- Web Content & URL Tools ai.avaloncompany/web-content-url-tools · needs auth
- Arclan MCP Registry ai.arclan/registry · alive
- AutEng Docs — Agent Document Workspace & Publishing ai.auteng/docs · alive
- AutEng MCP - Markdown Publishing & Document Share Links ai.auteng/mcp · alive
- file2markdown ai.file2markdown/file2markdown · alive
- Ishan Goyal public context ai.igoyal/public-context · alive
- Keenable Web Search ai.keenable/web-search · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.