Follow these steps on chatgpt.com in a web browser. The
ChatGPT Mac app has different menus and settings.
1
Open ChatGPT in a browser
Visit chatgpt.com and sign in to the account and workspace where you want to connect Ploti. Do the setup and the first test in this browser.
2
Turn on developer mode
On the ChatGPT website, open Settings, select Security and login, and turn on Developer mode. Confirm if ChatGPT asks. If the setting is missing, check that you are on the website and that your workspace allows it.
3
Add the Ploti MCP connection
Open ChatGPT Plugins, select Add, then Create custom MCP server. The New Plugin form asks for a name, description, and Connection details.Name it Set Authentication to OAuth. Review the custom MCP server notice, select I understand and want to continue if you agree, then select Create.
Ploti, add a description such as U.S. parcel, zoning, and ordinance data, select Server URL under Connection, and enter this public HTTPS endpoint:MCP server URL
If Create plugin opens a conversation with Plugin Creator, return to
Plugins. That workflow builds a plugin; this guide connects Ploti’s
existing MCP server. Confirm developer mode is enabled before looking
for the MCP connection option.
4
Approve the connection
Complete Ploti’s OAuth sign-in in your browser, choose the workspace you want to use, and approve the connection. Leave optional client ID and client secret fields empty.
5
Verify the connection
Return to the Ploti connection in Plugins and check that it lists Ploti’s tools. Fix any connection or sign-in error before starting a chat.
6
Try it in a chat
Start a new chat on the website and add the Ploti MCP connection from the tools menu. Try:
Use Ploti to compare parcels between 5 and 20 acres in Winter Garden, Florida, and return a map and table.
Configure Ploti's server URL and OAuth authentication in the New Plugin form on chatgpt.com, then select Create.
ChatGPT may ask you to confirm before tools that run code or create files.
Read what it proposes before you approve.