mcpcost

io.github.robin24/simconnect-mcp

SimConnect MCP

Is the SimConnect MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.

MCP server for MSFS SimConnect - full read/write access to SimVars, L-vars and events

alive probed 2026-11-14 · unchanged since 2026-10-30

32tools
16ktokens in Claude Opus 5.5
8.2 %of Claude's 200k window
6.5×the median server
2.8 sto initialize
13 msto list tools
Run it
uvx simconnect-mcp@1.0.2 (stdio, probed in a container with the network off)
Host
pypi.org
Reports itself as
SimConnect MCP 1.30.0
Capabilities
experimental, prompts, resources, tools
Instructions
none
Of a 1M window
1.6 % of a 1M context window
Count
16k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 17k. The o200k_base estimate is 9.4k. Counted again when the tool definitions change. Method.
Repository
https://github.com/robin24/simconnect-mcp
Registry
active, updated 2026-09-01 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.73×.

Tool≈ Claude tokenso200k estimateShare of this server
msfs_search_lvars1 3437748 %
msfs_search_hubhop1 1906867 %
msfs_list_lvars1 0275926 %
msfs_browse_lvar_catalog9115256 %
msfs_set_aircraft_position8735035 %

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

Servers that mention simvars or access.

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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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