RealTime API SIP problem with MCP Server

API
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1

I set up a realtime API prompt with a SIP connection.

Everything works fine except for the MCP servers. Basically, when I test the prompt from the platform, it works fine. However, if I use it from the SIP connection in the socket, I get an error.

{“type”:“mcp_list_tools.failed”,“event_id”:“event_CIfv69R3WvHbbBSDzzkX3”,“item_id”:“item_CIfv4mMBzO254X3xV7HP5”}

If I try it from the platform dashboard, it works fine.

All other settings in the saved prompt, including the “functions,” work!

Any idea? Is it a bug?

1 Like
2

do you see any traffic to your MCP server when using it with SIP?

3

No… no message… no traffic

4

something is wrong with your tools configuration then. you want something like

tools = [{
type: “mcp”,
server_label: “hello-mcp-demo”,
server_url: mcpUrl,
authorization: “demo-token-12345”, // In production, use a secure token
require_approval: “never”,
}];

5

Where insert this?

tools = [{
type: “mcp”,
server_label: “hello-mcp-demo”,
server_url: mcpUrl,
authorization: “demo-token-12345”, // In production, use a secure token
require_approval: “never”,
}];