io.github.logicgeek/toolgrail

ToolGrail

Is the ToolGrail MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-14.

Find and compare AI tools by role, task and industry, with pricing and sources.

alive probed 2026-11-14 · HTTP 200

5tools

1.7ktokens in Claude Opus 5.5

0.8 %of Claude's 200k window

0.7×the median server

1.4 sto initialize

72 msto list tools

Endpoint: https://toolgrail.vercel.app/api/mcp/ (streamable-http)
Host: toolgrail.vercel.app
Protocol: 2025-11-25
Reports itself as: toolgrail 1.0.0
Capabilities: tools
Instructions: 1 107 characters
Of a 1M window: 0.2 % of a 1M context window
Count: 1.7k tokens in Claude Opus 5.5, exact, measured 2026-11-12. With the Claude Code prefix mcp__…__ on each tool name: 1.7k. The o200k_base estimate is 960. Counted again when the tool definitions change. Method.
Repository: https://github.com/logicgeek/aitoolatlas
Website: https://toolgrail.vercel.app/
Registry: active, updated 2026-11-12 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.74×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
recommend_tools	615	353	37 %
search_tools	395	227	24 %
list_taxonomy	254	146	15 %
compare_tools	218	125	13 %
get_tool	190	109	11 %

Servers that mention industry or compare.

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.

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