Cuelark Tools for ChatGPT

com.cuelark/tools

Exact tools for agents: US tax, routing/EIN checks, business days, JSON, links, packages, citations.

client:ChatGPT transport:streamable-http tools:15

Install Cuelark Tools in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://tools.cuelark.com/mcp

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