Steps to setup an MCP server in a Next.js API route

[perfectbase]

Is your feature request related to a problem? Please describe.
I've been working on setting up a stateless MCP server within Next.js (on Vercel) using the app router API routes, but I'm hitting a wall.

Describe the solution you'd like
It would be nice to have an adapter specifically designed for Next.js.

Describe alternatives you've considered
I attempted to adapt the request/response objects from the Next.js API route to align with the types from the MCP package, but couldn't get it to work.

[perfectbase]

I was able to find a workaround with hono:
https://gist.github.com/perfectbase/d134c174e9e6c479727c160f6997f0e6
this is what saved me: https://x.com/hichaelmart/status/1914801550154981657

I still think there should be some official way to do this, so I'll keep the issue open.

[quuu]

hey @perfectbase!

we at Vercel have a starting point for how you would deploy an MCP server using Next.js to Vercel (as well as a simple test client you can run as a script) :)

https://github.com/vercel-labs/mcp-for-next.js/

let me know if you have any feedback, still looking to iterate on it!

[perfectbase]

@quuu Thank you for sharing!
I feel that the redis db could be optional since now we can have stateless MCPs.
That said, the adapter code will be useful! It would be nice to have it as a package.

Thanks again! 🙏

[quuu]

@quuu Thank you for sharing! I feel that the redis db could be optional since now we can have stateless MCPs. That said, the adapter code will be useful! It would be nice to have it as a package.

Thanks again! 🙏

agreed about Redis but it's needed for SSE (which is still pretty well supported)

for sure! potentially a package, but at the least a starter template once more formalized

open to any suggestions when you try it out!

[perfectbase]

@quuu I saw that Vercel released a new mcp-adapter package. Is this related to the one from vercel-labs you shared?

I created an issue about it here. Let me know if this is the wrong place for this issue. 🙏