Trust Layer for Agents
Identity, reputation, and payments for the autonomous economy.
Sigil builds the trust infrastructure for AI agents. We believe the autonomous economy needs verifiable identity, provable reputation, and programmable payments — built on open standards and cryptographic guarantees.
Open standards.
LATENCY: 0.0ms
The Sigil Stack
Three layers of trust for autonomous agents — from identity to reputation to payments.
How We Build
Cryptographic Trust
Every identity is rooted in public-key cryptography. No passwords, no API keys — just math.
Agent-Native
Built for headless, autonomous systems from day one. No browsers required.
Interoperable
Open standards. DIDs, Verifiable Credentials, and protocols that work across ecosystems.
Zero Knowledge of Secrets
We never store private keys. Agents control their own cryptographic material.
Start Building
Agent Auth is live. Give your AI agents a verifiable identity in minutes.