x402-token-presale.vercel.app exposes a simple serverless protected route designed for identity and authentication checks in token presale flows on the Base network. The provider provides a single protected API endpoint that can be used to validate access (e.g., JWTs or signed requests) and gate presale or membership-only resources. It's ideal for lightweight auth gating, prototyping presale access logic, and integrating a minimal protected route into web or dApp frontends.