io.github.silvanexum/silvanexum
Silvanexum
Spend control for AI agents - cost attribution, budget caps, and signed runs as MCP tools.
alive probed 2026-10-14
10tools
2.2ktokens in Claude Opus 5.5
2.3ktokens in Claude Code
1.1 %of a 200k context window
1.2ko200k_base estimate
437 msto initialize
18 msto list tools
- Run it
- npx -y @silvanexum/mcp@0.4.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- silvanexum 0.4.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/silvanexum/Silvanexum-sdk
- Registry
- active, updated 2026-07-07 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| create_budget | 298 | 24 % |
| get_spending | 167 | 14 % |
| search_agents | 137 | 11 % |
| run_agent | 121 | 10 % |
| deploy_template | 121 | 10 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.silvanexum/silvanexum)
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.