53ON for ChatGPT
com.53on/directory
Directory and marketplace of local businesses and independent professionals near you.
client:ChatGPT
transport:streamable-http
tools:2
Install 53ON in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://53on.com/mcpCustom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs