Polystate for ChatGPT

io.polystate/mcp

Relocation, residency, visa, company-formation and crypto-tax data for about 170 countries.

client:ChatGPT transport:streamable-http

Install Polystate in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://polystate-mcp-server.shy-surf-2fdf.workers.dev/mcp

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