HumanLayer

HumanLayer is the API and SDK for safe, production-grade AI: it embeds human-in-the-loop workflows for oversight, approvals, and feedback directly into autonomous agents.

HumanLayer delivers the critical infrastructure layer for deploying high-stakes AI agents safely. Our core product is an SDK that enables agents to pause and request human approval for sensitive actions, like a database administrator agent attempting to delete production SQL tables. Developers use the `@hl.require_approval()` decorator to enforce this oversight, ensuring reliability and accountability. The platform handles omnichannel routing, reaching the right team or individual via Slack, Email, or SMS for a prompt decision, and provides a full audit trail. Founded by Dexter Horthy, HumanLayer allows teams to scale powerful, autonomous AI without sacrificing control or building complex approval plumbing from scratch.

https://humanlayer.dev