Skip to main content
Environment variables hold configuration values your app reads at runtime — API endpoints, feature flags, and any other values that should not be hard-coded.

​
Adding a variable

  1. Open Project → Settings → Environment variables.
  2. Click Add another variable.
  3. Enter the key (for example, STRIPE_PUBLISHABLE_KEY) and value.
  4. Click Save variables.

​
Per-environment variables

If your project has multiple environments (development, staging, production), you can scope variables per environment. Production-only secrets stay out of development.

​
Where variables are used

  • Generated code reads env vars via the standard mechanism for your stack
  • Custom functions access them as named values
  • Integrations that need credentials beyond their own configuration
For integration credentials specifically (Stripe keys, SendGrid API key, and so on), use the Integrations settings — they handle credential rotation and isolation better than raw env vars.

​
FAQ

Yes.