Data property to have complete url with host

[hemantkathuria]

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• Protocol Specification
• SDK Usage
• Server Implementation
• General Implementation
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Your Question

I am trying to integrate with Copilot Studio.

Currently, the endpoint returned in the [Open SSE connection] (https://spec.modelcontextprotocol.io/specification/2024-11-05/basic/transports/#http-with-sse) call must be a full URI.

Currently there is a limitation mentioned above, and copilot studio is expecting the URL to be full URL.

I assume they are referring to the URL which is mentioned in data property. Is there is a way to make it full url?

[hemantkathuria]

@stephentoub

Adding the below code solves my issue. But I am not sure if you would like to always include the host url or want to make it configurable. Will it be possible to include this change or allow me to push? Let me know if you ok to include all the time or make it option based on user input 

public static IEndpointConventionBuilder MapMcp(this IEndpointRouteBuilder endpoints,

var hostUrl = $"{context.Request.Scheme}://{context.Request.Host}{context.Request.PathBase}";

await using var transport = new SseResponseStreamTransport(response.Body, $"{hostUrl}/message?sessionId={sessionId}");