mcpcost

io.github.WaterTian/wechat-devtools

wechat_devtools_mcp

Is the io.github.WaterTian/wechat-devtools MCP server down? No. Installed with mcp<2, it started and listed its tools on 2026-11-01.

MCP Server for WeChat DevTools CLI - Automate Mini Program development & testing.

needs mcp<2 probed 2026-11-14 · unchanged since 2026-11-01

42tools, with mcp<2
20ktokens in Claude Opus 5.5
10.0 %of Claude's 200k window

A plain install of the package stops at the import below. These tool definitions are from a second install with mcp<2, started in a container with the network off, on 2026-11-01.

MCP error -32000: Connection closed
ModuleNotFoundError: No module named 'mcp.server.fastmcp'. This is mcp 2.x, where FastMCP was renamed to MCPServer (from mcp
Run it
uvx --with 'mcp<2' wechat-devtools-mcp@0.1.0 (stdio, probed in a container with the network off)
Host
pypi.org
Reports itself as
wechat_devtools_mcp 1.30.0
Capabilities
experimental, prompts, resources, tools
Repository
https://github.com/WaterTian/wechat-devtools
Registry
active, updated 2026-03-09 · registry entry
Changes
2 recorded, reachable in 0 of them. A row is added when the result, the tool count or the cost changes.

Most expensive tools

Estimates with the o200k_base tokenizer.

Toolo200k estimateShare of this server
wechat_get_console_logs6626 %
wechat_run_automation_script5515 %
wechat_preview4374 %
wechat_cloud_func_deploy3883 %
wechat_navigate_and_capture3573 %

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

Servers that mention devtools.

History

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

ProbedResultInitToolsClaudeo200k
2026-11-01 08:16needs mcp<21.1 s4220k11k
2026-10-18 06:43crashed on start

Badge for the README

mcpcost: needs mcp<2

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.

For the publisher

The cause and the fix, with the code before and after: ModuleNotFoundError: No module named 'mcp.server.fastmcp'