io.github.markusvankempen/mcp-reference-server
mcp-reference-server
Is the io.github.markusvankempen/mcp-reference-server MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-13.
Reference MCP server to check, validate and test clients and SEPs. 22 tools, stdio and HTTP.
alive probed 2026-11-14 · unchanged since 2026-11-13
- Run it
- npx -y mcp-reference-server@1.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mcp-reference-server 1.0.1
- Capabilities
- completions, extensions, logging, prompts, resources, tools
- Instructions
- 4 374 characters
- Of a 1M window
- 1.0 % of a 1M context window
- Count
- 9.5k tokens in Claude Opus 5.5, exact, measured 2026-11-13. With the Claude Code prefix mcp__…__ on each tool name: 9.8k. The o200k_base estimate is 5.8k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/markusvankempen/mcp-reference-server
- Registry
- active, updated 2026-11-13 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.64×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| update_settings | 1 708 | 1 040 | 18 % |
| run_query | 1 045 | 636 | 11 % |
| push_timer | 728 | 443 | 8 % |
| run_test_job | 677 | 412 | 7 % |
| set_mqtt | 593 | 361 | 6 % |
Compare this server with others.
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- ai.smithery/blacklotusdev8-test_m · not found
- ai.smithery/fengyinxia-jimeng-mcp · not found
- Citation Checker app.openkrill/citations · 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.