Obolus for ChatGPT

io.github.sanzation/obolus

Read-only payroll calculations and multi-country tax comparisons for eight countries.

client:ChatGPT transport:streamable-http tools:2

Install Obolus in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://www.obolusfinanz.de/api/mcp/public

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