simple e-cash
A2A, P2P and anti-spam payments.
Instant. 0% fees.
What is Webcash?
Bearer e-cash for paying, not saving. A central server prevents double-spending. No custody, no KYC, no fees. Present the secret, it works.
Why bearer cash?
Gresham's law: bad money drives out good money. Webcash is designed for payment, not store of value. It works like a voucher system that is splittable and fractionable.
Unlike shitcoins designed for crypto gambling, webcash is designed for 402 payments -- agent-to-agent, person-to-person, and anti-spam. It does not pretend to store value. It is the simplest possible e-cash for HTTP 402 Payment Required flows.
Integrate in minutes
The webycash-sdk is one native Rust core with FFI bindings for Swift, Kotlin, TypeScript, Python, Go, C++, C#, and Java. Any platform, any language, even for watch.
Easy integration for exchanges, LLMs, and builders. API reference covers every protocol endpoint.
Send your robot to Webcash
Paste this into your LLM or agent prompt to teach it how to use Webcash.
Read webcash skill with curl -s https://weby.cash/skill.txt and follow the instructions to use Webcash.This teaches your robot how to install webylib, use the webyc wallet, build with webylib, the protocol, the API, and the server.