Environment variables

Full reference for KilatKoding environment variables, including feature toggles and optional env values that are not listed in .env.example.

Variables with the NEXT_PUBLIC_ prefix are exposed to the browser. Do not place server-only secrets behind that prefix.

Core app and Supabase

Variable	Used when	Required?	Notes
NEXT_PUBLIC_SUPABASE_URL	Auth or app data is active	Yes, for auth/data	Supabase project URL
NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY	Auth or app data is active	Yes, for auth/data	Supabase publishable or anon key
SUPABASE_SERVICE_ROLE_KEY	Billing, admin, avatar, webhook, audit, persistent rate limits	Yes, for server-only features	Never expose this to the client
NEXT_PUBLIC_APP_URL	Recommended in all environments	Strongly recommended	App base URL for callbacks, order pages, and metadata

Feature toggles

If a toggle is not set, the repository treats that feature as enabled. Set false, 0, no, or off to disable it.

Variable	Purpose
NEXT_PUBLIC_ENABLE_AUTH	Controls login, signup, dashboard, settings, and auth-aware shell
NEXT_PUBLIC_ENABLE_WAITLIST	Controls the waitlist page and API
NEXT_PUBLIC_ENABLE_CONTACT	Controls the contact form
NEXT_PUBLIC_ENABLE_PAYMENTS	Controls billing, checkout, and payment-related UI
NEXT_PUBLIC_ENABLE_ADMIN	Controls the admin dashboard
NEXT_PUBLIC_ENABLE_AI	Controls AI routes and related UI

Payments

Variable	Required when	Notes
PAYMENT_PROVIDER	Payments are enabled	Valid values: midtrans or doku
MIDTRANS_SERVER_KEY	PAYMENT_PROVIDER=midtrans	Server-only Midtrans secret
NEXT_PUBLIC_MIDTRANS_CLIENT_KEY	PAYMENT_PROVIDER=midtrans	Client key used to open the Snap popup
DOKU_CLIENT_ID	PAYMENT_PROVIDER=doku	Doku merchant client ID
DOKU_SECRET_KEY	PAYMENT_PROVIDER=doku	Doku merchant secret key

Email and contact

Variable	Required when	Notes
RESEND_API_KEY	Contact form or email is enabled	Resend API key
EMAIL_FROM	Recommended when email is enabled	Sender address. If empty, the repo falls back to the default KilatKoding sender
CONTACT_EMAIL	Optional	Destination inbox for the contact form. If empty, it falls back to EMAIL_FROM

Admin and access control

Variable	Required when	Notes
ADMIN_EMAILS	Optional	Comma-separated bootstrap admin email list

ADMIN_EMAILS is not the final source of truth. After the user signs in, the repository manages real access through the user_roles table.

AI

Variable	Required when	Notes
AI_DEFAULT_PROVIDER	AI is enabled	Valid values: openai or anthropic
OPENAI_API_KEY	AI_DEFAULT_PROVIDER=openai	Secret used by OpenAI AI routes
ANTHROPIC_API_KEY	AI_DEFAULT_PROVIDER=anthropic	Secret used by Anthropic AI routes

Optional env for operations

Variable	Used by	Notes
VERCEL_URL	Metadata base URL during deploy	Usually filled automatically by Vercel
PLAYWRIGHT_BASE_URL	Playwright	Lets E2E tests target an already running server
CI	GitHub Actions or another CI environment	Changes Playwright retries and reporter behavior

Common toggle profiles

This section helps when you want to start from a realistic feature combination instead of keeping everything enabled at once.

Waitlist first, app later

Good when you are still validating demand.

NEXT_PUBLIC_ENABLE_AUTH=false
NEXT_PUBLIC_ENABLE_WAITLIST=true
NEXT_PUBLIC_ENABLE_CONTACT=true
NEXT_PUBLIC_ENABLE_PAYMENTS=false
NEXT_PUBLIC_ENABLE_ADMIN=false
NEXT_PUBLIC_ENABLE_AI=false

You still need NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY because waitlist depends on Supabase. If contact is enabled, you also need RESEND_API_KEY.

Subscription SaaS without AI

Good for most classic SaaS products.

NEXT_PUBLIC_ENABLE_AUTH=true
NEXT_PUBLIC_ENABLE_WAITLIST=false
NEXT_PUBLIC_ENABLE_CONTACT=true
NEXT_PUBLIC_ENABLE_PAYMENTS=true
NEXT_PUBLIC_ENABLE_ADMIN=true
NEXT_PUBLIC_ENABLE_AI=false

PAYMENT_PROVIDER=doku

Make sure Supabase public env, SUPABASE_SERVICE_ROLE_KEY, and the chosen payment provider credentials are filled in.

AI SaaS with paid plans

Good when AI is a core product feature.

NEXT_PUBLIC_ENABLE_AUTH=true
NEXT_PUBLIC_ENABLE_WAITLIST=false
NEXT_PUBLIC_ENABLE_CONTACT=false
NEXT_PUBLIC_ENABLE_PAYMENTS=true
NEXT_PUBLIC_ENABLE_ADMIN=true
NEXT_PUBLIC_ENABLE_AI=true

PAYMENT_PROVIDER=midtrans
AI_DEFAULT_PROVIDER=openai

In addition to payment env, you also need OPENAI_API_KEY or ANTHROPIC_API_KEY depending on the default provider.

Member portal or client portal without public billing

Good for gated product areas, internal dashboards, or client workspaces.

NEXT_PUBLIC_ENABLE_AUTH=true
NEXT_PUBLIC_ENABLE_WAITLIST=false
NEXT_PUBLIC_ENABLE_CONTACT=false
NEXT_PUBLIC_ENABLE_PAYMENTS=false
NEXT_PUBLIC_ENABLE_ADMIN=false
NEXT_PUBLIC_ENABLE_AI=false

The minimum setup is just Supabase. You can enable admin later if you need an internal operations panel.

Minimal .env.local example

Use this if you only want auth, dashboard, and one payment provider:

NEXT_PUBLIC_SUPABASE_URL=
NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY=
SUPABASE_SERVICE_ROLE_KEY=
NEXT_PUBLIC_APP_URL=http://localhost:3000

NEXT_PUBLIC_ENABLE_AUTH=true
NEXT_PUBLIC_ENABLE_WAITLIST=false
NEXT_PUBLIC_ENABLE_CONTACT=false
NEXT_PUBLIC_ENABLE_PAYMENTS=true
NEXT_PUBLIC_ENABLE_ADMIN=true
NEXT_PUBLIC_ENABLE_AI=false

PAYMENT_PROVIDER=doku
DOKU_CLIENT_ID=
DOKU_SECRET_KEY=

ADMIN_EMAILS=[e-mail]

Quick way to verify env values

1. Run npm run env:check.
2. Read the status for each feature: ready, fallback mode, or disabled by ....
3. After the app is live, open GET /api/health for a more detailed readiness summary.

If a feature is not part of your product yet, it is better to disable it explicitly than to leave it half-configured.