Add support for SSE Transport

[alfonsograziano]

As per spec: https://modelcontextprotocol.io/docs/concepts/transports

It might be interesting to evaluate partial or full support for SSE

[flaviodelgrosso]

Given also the new supported MCP capabilities in vscode, it's definitely worth starting to try it out! 😄

[alfonsograziano]

Absolutely! More than sse is worth trying the https transport. I'll take a look over the weekend

[flaviodelgrosso]

Hi @alfonsograziano! Would you be interested in integrating Fastify to support streamable http transport? I'm cooking something about it 😄 In that case, I'll need a lot of feedbacks about it

[alfonsograziano]

Absolutely! Integrating a new transport might be super interesting! It might enable a lot of use cases (like remote code execution). If you want to experiment, please go for it, happy to help if needed!

[flaviodelgrosso]

FYI: https://www.npmjs.com/package/fastify-mcp-server I’ve started working on this Fastify plugin.

There are a few buggy behaviors in trasports closing event callback I still need to investigate, not sure yet if they're related to the SDK or if I'm missing something on my end. It’s functional for now, but I'd like to spend a bit more time before reaching a stable release. I also plan to add support for authenticated tooling requests 😄

Feel free to test it out if interested, we could then potentially integrate it here 🚀

[alfonsograziano]

Sorry, I missed the notification, but it looks great! I'll play with it. Thanks for letting me know :D