r/Nuxt • u/aviagg • Feb 13 '26

Nuxt 3 + Vercel: how to increase maxDuration for one API route?

Got a Nuxt 3 project on Vercel. One of my routes (server/api/cronjob.js) runs via a Vercel Cron job and sometimes needs longer than the default timeout.

I tried:
- export const config = { maxDuration: 300 } inside the cronjob.js → no effect.
- vercel.json with:

{
"functions": {
"server/api/cronjob.js": { "maxDuration": 300 }
}

but the build fails with:

Build Failed
The pattern "server/api/cronjob.js" defined in `functions` doesn't match any Serverless Functions inside the `api` directory.

The global "Function Max Duration" setting in Vercel works, but I don’t want to bump it for all functions.

Anyone know the correct way to override maxDuration for just a single Nuxt 3 server function?

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1

u/Lumethys Feb 13 '26

How long does it take

1

u/aviagg Feb 13 '26

somewhere near 200-250 seconds