Troubleshooting Builder.io Integration with Qwik: Missing API Key Error

Technical Questions QWIK SDK
1

I’m trying to integrate Builder.io with Qwik to fetch content dynamically but face a persistent “Missing API key” error blocking content retrieval.

Tech Setup

  • Framework: Qwik 1.14.1
  • Builder SDK: @builder.io/sdk-qwik 0.21.1
  • Vite: 5.3.5
  • Node: 20.14.11
  • TypeScript: 5.4.5
  • Fresh Qwik City app with recommended environment setup.

What I Did

  • Added API key to .env as VITE_BUILDER_PUBLIC_API_KEY.
  • Accessed API key in code via import.meta.env.VITE_BUILDER_PUBLIC_API_KEY.
  • Tested hardcoded key directly in index.tsx.
  • Created a new Builder.io space and published a test page.
  • Verified API key correctness in Builder.io dashboard.
  • Cleared caches, reinstalled dependencies.
  • Tested with and without browser extensions, incognito mode.
  • Ensured Vite config and plugins are as per docs.
  • Confirmed environment variables are loaded and accessible.
  • Removed any legacy or conflicting config files.
  • Tried Fusion and Publish space types.

The Problem

On running the app, I get this error in terminal and browser:

vbnet

Copy

[vite] Internal Server Error  
Missing API key  
at Module.generateContentUrl

Despite the API key being logged correctly and appearing valid, the SDK fails to authenticate.

Also, browser console logs Content Security Policy warnings about refusing inline scripts, but no obvious connection to API key failure.

What’s Excluded

  • API key correctness and permissions (verified).
  • Environment variable loading issues (tested hardcoded key).
  • Browser extension conflicts (tested incognito).
  • Package version mismatches (all latest stable).
  • Basic config errors (checked Vite and Qwik configs).

Request for Help

If you have successfully integrated Builder.io with Qwik SSR using @builder.io/sdk-qwik, any pointers or solutions for this persistent “Missing API key” error would be greatly appreciated.

Is this a known issue with the current SDK or SSR environment? Are there additional config steps or workarounds required?

2

Hello Stéphane Hoenicke,

Thank you for contacting the Builder.io Technical Support team with your question.

The “Missing API key” error you’re encountering with @builder.io/sdk-qwik is often related to when and where the apiKey is accessed in the Qwik lifecycle, especially in SSR environments.

**However, the Qwik, Partytown or Mitosis respective Open-source development teams can help you better and provide more value to your implementation with Builder.

You can reach out to the Qwik Open source Project teams as follows:

You can also head over to the Discord channel and join the discussion there.

I hope you find the information above helpful. Please don’t hesitate to contact us if you need any further assistance.

Best Regards,