mcpcost

io.github.GKihlstadius/mr-mail

Mr Mail

Is the Mr Mail MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-15.

Local Windows email client with 28 tools: read, draft, send on request, calendar and clean up.

alive probed 2026-11-15

28tools
6.7ktokens in Claude Opus 5.5
3.4 %of Claude's 200k window
2.7×the median server
82 msto initialize
3 msto list tools
Bundle
https://github.com/GKihlstadius/mr-mail/releases/download/v0.7.1/MrMail-0.7.1.mcpb (MCPB, for a client that installs bundles; probed in a container with the network off)
Host
github.com
Reports itself as
mr-mail 0.7.1
Capabilities
tools
Instructions
967 characters
Of a 1M window
0.7 % of a 1M context window
Count
6.7k tokens in Claude Opus 5.5, exact, measured 2026-11-15. With the Claude Code prefix mcp__…__ on each tool name: 7.0k. The o200k_base estimate is 3.9k. Counted again when the tool definitions change. Method.
Repository
https://github.com/GKihlstadius/mr-mail
Website
https://github.com/GKihlstadius/mr-mail
Registry
active, updated 2026-11-15 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.71×.

Tool≈ Claude tokenso200k estimateShare of this server
send_email5913459 %
draft_email5603278 %
create_event4542657 %
edit_draft4282506 %
find_free_time4222466 %

Compare this server with others.

More servers

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

Servers that mention mail.

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mcpcost: 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.

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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.

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