FortSignal is intent verification infrastructure for developers building agentic applications, fintech, and any system where a compromised session or misbehaving agent could be catastrophic. Before any sensitive action executes, FortSignal returns cryptographic proof that the right human or agent approved the right action — bound to the exact parameters, enforced by policy. We handle WebAuthn, parameter binding cryptography, agent delegation, and policy enforcement so your team doesn't have to. SDK on npm. Patent pending.