Install
Add Checkme to ChatGPT
It takes about two minutes. You need a ChatGPT account; Checkme itself needs none.
As a custom connector
Works nowCustom connectors are set up on the web. Some plans and workspaces don't allow them.
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Copy the connector address
Or select the address and copy it yourself.
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Open Plugins
In ChatGPT's sidebar, choose Plugins.
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Add a custom MCP server
Choose Add, then Add custom MCP server.
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Fill in the form
Name it Checkme and paste the address as the Server URL. Choose No authentication, tick I understand and want to continue, then Create as a plugin.
The description is optional; the address must be exact. -
Connect it
Choose Connect Checkme.
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Get checked.
In a new chat, say “let's play chess”.
From the ChatGPT app directory
Not listed yetWhen Checkme is listed, this is the quickest way. Until then, use the custom connector above.
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Open Plugins
In ChatGPT's sidebar, choose Plugins, and search there.
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Find Checkme
Search for Checkme and choose Connect.
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Get checked.
In a new chat, say “let's play chess”.
Say it your way
Name an opponent, a level or a clock in the same sentence: “Play me as Stockfish at level 3, with a ten-minute clock.”
Don't see the board?
Check that the Checkme plugin is connected, then start a new chat. If Add custom MCP server is missing, your plan or workspace may not allow custom servers. The connector's address must be https://dzchess.app/mcp, with nothing added. Troubleshooting