io.github.grulex/grpc-invoke-mcp
grpc-invoke-mcp
Is the io.github.grulex/grpc-invoke-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
MCP server for describing and invoking gRPC methods
alive probed 2026-11-14 · unchanged since 2026-10-31
2tools
854tokens in Claude Opus 5.5
0.4 %of Claude's 200k window
0.3×the median server
56 msto initialize
13 msto list tools
- Run it
- npx -y @grulex/grpc-invoke-mcp@0.1.5 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- grpc-invoke-mcp 0.1.0
- Capabilities
- logging, tools
- Instructions
- none
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 854 tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 886. The o200k_base estimate is 455. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/grulex/grpc-invoke-mcp
- Registry
- active, updated 2026-05-29 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.88×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| grpc_call | 439 | 234 | 51 % |
| grpc_describe | 415 | 221 | 49 % |
Compare this server with others.
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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.