Kitbench for ChatGPT

net.kitbench/kitbench

Exact Japanese text & date tools: char count, business days with JP holidays, era, tax, units.

client:ChatGPT transport:streamable-http tools:7

Install Kitbench in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://kitbench.net/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs