io.github.JustAiAgent0809/mcp-server-index
mcp-server-index
Offline MCP tool schemas and risk flags. Partial census: 2,283 servers, 2026-09-08.
alive probed 2026-10-15
4tools
632tokens in Claude Opus 5.5
680tokens in Claude Code
0.3 %of a 200k context window
326o200k_base estimate
1.3 sto initialize
4 msto list tools
- Run it
- npx -y mcp-server-index@0.1.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mcp-server-index 0.1.0
- Capabilities
- tools
- Instructions
- 356 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Registry
- active, updated 2026-09-08 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| find_tool | 115 | 35 % |
| server_tools | 97 | 30 % |
| classify_capabilities | 76 | 23 % |
| census_info | 38 | 12 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.JustAiAgent0809/mcp-server-index)
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.