dev.mcpcomp/diagnostics

MCPComp Diagnostics

Is the MCPComp Diagnostics MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

Grade an MCP server's auth against the spec and diagnose which layer a failure is in.

alive probed 2026-11-14 · unchanged since 2026-10-31

2tools

651tokens in Claude Opus 5.5

0.3 %of Claude's 200k window

0.3×the median server

1.2 sto initialize

14 msto list tools

Run it: npx -y mcpcomp@0.6.1 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: mcpcomp 0.6.1
Capabilities: resources, tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 651 tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 671. The o200k_base estimate is 360. Counted again when the tool definitions change. Method.
Website: https://www.mcpcomp.dev
Registry: active, updated 2026-08-20 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.81×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
diagnose_auth_failure	387	214	59 %
scan_auth	264	146	41 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention diagnostics.

ai.pullpush/pullpush-mcp · needs auth
SearchConsole.ai ai.searchconsole/searchconsole-ai · needs auth
MCP health — MCP directory health check diagnostics app.rowb.mcp-health/probe · alive
Fat Heron Developer Platform com.fatheron/fat-heron · needs auth
Geekflare com.geekflare/mcp · needs your URL
PGAuditor com.mcpgatepro/pgauditor · needs auth
MCPFax Vehicle Diagnostics com.mcpscores/vehicle-fault-codes · alive
SigRank — AI Operator Benchmarking com.signalaf/sigrank · alive

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.