Middleware server error accessing Supabase variables

jerry-2306 · November 21, 2025, 8:45pm

Still getting the error, I can see the variables now but they are not accessible to the code got this message from the chat.“runtime environment still isn’t providing the variables to the middleware”

instead of app loading i get the following error

@supabase/ssr: Your project’s URL and API key are required to create a Supabase client! Check your Supabase project’s API settings to find these values API Settings | Supabase at ge (@supabase/ssr) at createClient (/lib/supabase/client) at updateSession (/lib/supabase/middleware) at async Object.middleware [as handler] (/middleware)

alex-3807 · November 21, 2025, 9:00pm

My app still doesnt work, get the same message:

Runtime Error

either NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_ANON_KEY env variables or supabaseUrl and supabaseKey are required! at E (@supabase/auth-helpers-nextjs) at Object.middleware [as handler] (/middleware)

jerry-2306 · November 21, 2025, 10:28pm

any updates? we have few production items that we need to fix, not able to do anything at the moment.

rothnic · November 21, 2025, 10:29pm

Mine is now working. All the env variables showed back up, but this was just created today and v0 linked the supabase instance for me initially, so not sure if others have a different setup.

jerry-2306 · November 21, 2025, 10:57pm

mine is not working, still getting the error.

Runtime Error

@supabase/ssr: Your project’s URL and API key are required to create a Supabase client! Check your Supabase project’s API settings to find these values API Settings | Supabase at ge (@supabase/ssr) at createClient (/lib/supabase/client) at updateSession (/lib/supabase/middleware) at async Object.middleware [as handler] (/middleware)

jwalsh-bdt · November 21, 2025, 11:14pm

I’m still seeing this

vet-6321 · November 22, 2025, 5:46am

Middleware server error accessing Supabase variables on Home page. Confirming env variables exist, but v0 preview can’t find or access them. Was not an issue 24 hours ago.

chuponsito · November 22, 2025, 5:49am

same issue here

Your project’s URL and Key are required to create a Supabase client! Check your Supabase project’s API settings to find these values

jwalsh-bdt · November 22, 2025, 5:08pm

Any updates on this? V0 is unusable with Supabase currently

jerry-2306 · November 22, 2025, 7:30pm

Still facing the same issue on all my projects, need a resolution.

Runtime Error

Your project’s URL and Key are required to create a Supabase client! Check your Supabase project’s API settings to find these values API Settings | Supabase at Ce (@supabase/ssr) at updateSession (/lib/supabase/middleware) at Object.middleware [as handler] (/middleware)

alex-3807 · November 22, 2025, 7:47pm

Still getting the issue in mine

corebytes · November 23, 2025, 12:41am

I am also getting these errors on one of my projects!

corebytes · November 23, 2025, 12:42am

Still getting the error on one of my projects

thesimplesidenews-37 · November 23, 2025, 6:58pm

[v0] Supabase credentials not available in middleware, skipping auth check

13:52:06.294Z**[SERVER]**

[v0] Supabase credentials not available in middleware, skipping auth check

13:52:06.425Z**[SERVER]**

[v0] Supabase credentials not available, returning null client

13:52:06.425Z**[SERVER]**

[v0] Supabase credentials not available, returning null client

13:52:06.426Z**[SERVER]**

[v0] Supabase client not available in getPerformanceMetrics

13:52:06.426Z**[SERVER]**

[v0] Supabase credentials not available, returning null client

13:52:06.426Z**[SERVER]**

[v0] Supabase client not available in getTopPicks

13:52:13.453Z**[SERVER]**

GoTrueClient@sb-jxswntpuuznxeqhlqdsx-auth-token:1 (2.84.0) 2025-11-23T18:52:13.453Z Multiple GoTrueClient instances detected in the same browser context. It is not an error, but this should be avoided as it may produce undefined behavior when used concurrently under the same storage key.

13:52:13.471Z**[SERVER]**

GoTrueClient@sb-jxswntpuuznxeqhlqdsx-auth-token:2 (2.84.0) 2025-11-23T18:52:13.471Z Multiple GoTrueClient instances detected in the same browser context. It is not an error, but this should be avoided as it may produce undefined behavior when used concurrently under the same storage key.

I cannot get V0 to fix this error in any capacity…

vet-6321 · November 23, 2025, 10:36pm

Received an email from Vercel that issue has been resolved. I rechecked and the issue is still there, has not yet been resolved when v0 preview loads/initialises.

ryanb-hamedia · November 24, 2025, 1:25am

same issue with here can’t fix it.

corebytes · November 24, 2025, 2:54am

Same issue here and they seem to be unresponsive this is costing me a great deal of time lost.

corebytes · November 24, 2025, 3:01am

@pawlean Please address this issue, i am getting same error and all my vars show up and I am able to update and edit them. The error still occurs after duplicating readding vars etc please assist!

alexhandsaker-7128 · November 24, 2025, 9:38am

Still getting issues in my apps, no idea what is going on with all of this:

fetch to https://xxxxxxxxxxxxxxxx.supabase.co/rest/v1/contact_history?select=*&interaction_type=eq.call failed with status 556 and body:

This will be 3 working days where V0 + Supabase has completely failed me and at this stage I struggle to work out who is broken

pawlean · November 24, 2025, 2:12pm

Hey, everyone! Just catching up after the weekend.

Let me share this with the v0 team - appreciate your patience

Update: I just moved this from the original thread as this is a separate issue.

Can you folks confirm a new chat shows the same error?

Any chat links would be helpful!

Topic		Replies	Views
Missing environment variables in v0 v0 v0	18	262	December 8, 2025
Supabase projects in v0 adding SUPABASE_ prefix to all ENV variables Help	1	37	January 16, 2026
Error missing supabase environment variables v0 v0	3	277	August 13, 2025
Developement Errors are just constant v0	3	61	November 14, 2025
Missing or invalid Supabase environment variables Help	3	285	December 8, 2025

Middleware server error accessing Supabase variables

either NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_ANON_KEY env variables or supabaseUrl and supabaseKey are required! at E (@supabase/auth-helpers-nextjs) at Object.middleware [as handler] (/middleware)

Your project’s URL and Key are required to create a Supabase client! Check your Supabase project’s API settings to find these values

Your project’s URL and Key are required to create a Supabase client! Check your Supabase project’s API settings to find these values API Settings | Supabase at Ce (@supabase/ssr) at updateSession (/lib/supabase/middleware) at Object.middleware [as handler] (/middleware)

Related topics