Show HN: Threshold Cryptography for AI Agents Using Payments and Digital Assets

We introduce the concept of a "cryptographic identity", which consists of a private key, a manifest attached to it that defines what a specific action is allowed or not allowed to do, and additional controls. The principle is simple: when an AI wants to perform an action, it has to request a signature for that action, and the signature is issued only after the checks pass. I think this approach is flexible enough for most use cases, while also improving accountability and making it possible to build architecture around a zero-trust model. The system lets you define your own action schemas, or plug in modules for agentic payments, such as Google AP2 and Mastercard Verifiable Intent, or a digital assets module that lets an agent work with crypto wallets. Basically, modules for different type