I created a Prompt that uses my custom MCP server. I set reasoning to high. I then started a conversation on the platform site and it worked very well. It calls my MCP server, I see the calls on my side, and it uses the information in the response. I even used my MCP server successfully in Deep Rese…

Using an MCP server with Responses api gives a 500

Nic_T3744 September 20, 2025, 6:02am 2

Maybe this has something to do with it.

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