Gpt-realtime bug in the playground

API Bugs
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1

In the last two days, I’ve been experiencing issues with gpt-realtime in the playground. When I connect an MCP server and start a conversation, I get errors like the following:

type: "error"
event_id: "event_CQphP2pIDTxrBY0v4p2Yl"
error.type: "invalid_request_error"
error.code: "unknown_parameter"
error.message: "Unknown parameter: 'session.tools[0].server_description'."
error.param: "session.tools[0].server_description"
error.event_id: null

These errors are non-deterministic; they don’t occur every time, but they happen frequently enough to be a problem. The MCP server I’m using is from Zapier. It worked fine a few times, but I eventually started running into these errors.

2 Likes
2

+1, I am experiencing the same with Google Calendar MCP

3

Same issue here, I played around with MCP today and had the same issue. It just worked when removing the server_description attribute although it should be possible to specify it based on the API documentation.

1 Like
4

Same for me when using a MCP tool via Realtime API using Websocket transport. I had to remove the server_description parameter.