langchain-ai/agent-auth-payments

Node.js API

11 environment variables found in apps/web/.env.example

Set these on your host before deploying. Each platform has an “Environment Variables” section in the deploy flow.

NEXT_PUBLIC_API_URL LangGraph Configuration
NEXT_PUBLIC_ASSISTANT_ID
NEXT_PUBLIC_BASE_URL fullstack-chat-client
LANGSMITH_API_KEY secret Do NOT prefix this with "NEXT_PUBLIC_" as we do not want this exposed in the client.
NEXT_PUBLIC_GOOGLE_AUTH_DISABLED Disable showing Google Auth in the UI
NEXT_PUBLIC_SUPABASE_ANON_KEY secret Supabase Authentication Need all 3, anon key for client side, service role for api routes
NEXT_PUBLIC_SUPABASE_URL
SUPABASE_SERVICE_ROLE_KEY secret
STRIPE_SECRET_KEY secret Stripe API
NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY secret
STRIPE_WEBHOOK_SECRET secret Local Stripe CLI testing

Alternative Fly.io Anything Dockerized — requires the Fly CLI.

macOS

brew install flyctl && fly launch --from https://github.com/langchain-ai/agent-auth-payments

Linux

curl -L https://fly.io/install.sh | sh && fly launch --from https://github.com/langchain-ai/agent-auth-payments

Windows (PowerShell)

iwr https://fly.io/install.ps1 -useb | iex; fly launch --from https://github.com/langchain-ai/agent-auth-payments

Or deploy to a different host