What Claude, ChatGPT, Cursor and the MCP Registry require to list an MCP connector or plugin.
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What Claude, ChatGPT, Cursor and the MCP Registry require to list an MCP connector or plugin.
The rest either hold an API key issued by the publisher or ask for nothing.
Proved in a claim that the source of a listing here is theirs. The tick is on the listings they published or claimed; an imported listing nobody has claimed does not carry it.