These projects are the executable source of truth for code published in the Base use-case guides. The MDX files contain invisible sample: markers, and node scripts/verify-doc-samples.js compares each marked fence with the corresponding docs:start / docs:end region in this directory.

Run all offline checks from the repository root:

node scripts/verify-doc-samples.js

Live Base Sepolia evidence is recorded in verification-manifest.json. Never commit private keys, API credentials, or funded environment files.

The x402 servers require PAY_TO and a separate RECEIVER_AUTHORIZER_PRIVATE_KEY for batch-settlement claim/refund signatures. The authorizer key does not receive payments and should live in a server-side key manager in production.