mcpcost

io.github.Softeria/ms-365-mcp-server

Microsoft 365 MCP Server

Is the Microsoft 365 MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-15.

Interact with Microsoft 365 and Office services through the Microsoft Graph API.

alive probed 2026-11-15

203tools
402ktokens in Claude Opus 5.5
201.1 %of Claude's 200k window
160×the median server
1.4 sto initialize
462 msto list tools
Run it
npx -y @softeria/ms-365-mcp-server@0.185.0 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
Microsoft365MCP 0.185.0
Capabilities
tools
Instructions
1 686 characters
Of a 1M window
40.2 % of a 1M context window
Count
402k tokens in Claude Opus 5.5, exact, measured 2026-11-12. With the Claude Code prefix mcp__…__ on each tool name: 405k. The o200k_base estimate is 246k. Counted again when the tool definitions change. Method.
Repository
https://github.com/Softeria/ms-365-mcp-server
Registry
active, updated 2026-11-14 · registry entry
Changes
10 recorded, reachable in 10 of them. A row is added when the result, the tool count or the cost changes.

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.63×.

Tool≈ Claude tokenso200k estimateShare of this server
create-onedrive-folder16 85510 3234 %
move-rename-onedrive-item16 84010 3144 %
update-calendar13 3438 1723 %
create-calendar13 3078 1503 %
create-mail-child-folder8 3615 1212 %

Compare this server with others.

More servers

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

Servers that mention microsoft.

History

We add a row when the result changes. A server with no change keeps its last row.

ProbedResultInitToolsClaudeo200k
2026-11-12 09:02alive2.1 s203402k246k
2026-11-11 08:36alive2.2 s203402k246k
2026-11-09 08:51alive1.9 s203402k246k
2026-11-08 08:05alive1.4 s202401k245k
2026-10-31 07:38alive704 ms202400k245k
2026-10-30 07:53alive1.4 s202400k245k
2026-10-29 07:49alive832 ms202419k259k
2026-10-26 07:08alive1.4 s200418k258k
2026-10-23 06:54alive902 ms200258k
2026-10-16 06:28alive1.4 s196407k251k

Badge for the README

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.

Atom feed

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