NexisPay is redefining how payments move across the internet. From fiat to crypto, from Layer 0 to any chain — one unified API connects it all. Instant. Secure. Composable. The new standard for programmable payments is here.

We’ve solved the legendary 402 challenge — at Layer 0. Now, the x402 API and x402 Protocol can launch across any chain. A universal payment layer for the programmable web is finally here. HTTP 402 = Payment Required. A status code that was never implemented — the missing layer

The 402 challenge has finally been solved. After months of deep protocol engineering, we’ve achieved it — at Layer 0. Now, the x402 Protocol can be launched on any chain, anywhere. Welcome to the next evolution of programmable payments. The “402 problem” refers to the missing

x402 Payment API — the future of programmable payments. One unified API to connect fiat + crypto, enabling instant, secure, and borderless transactions. Build anything — from e-commerce to DApps — with just a few lines of code.

Introducing x402 Payment API — The Infrastructure for the Future of Payments In the modern digital economy, payments are no longer just the final step of a transaction — they are the foundation of innovation. x402 Payment API is designed to provide developers, businesses, and