HumanLayer
Chicago, IL, USA
Founded 2023
HumanLayer provides an API and SDK that enables AI agent builders to build agents that feel like actual people. Its technology allows users to guarantee human oversight of high-stakes function calls with approval workflows across multiple channels
Websites:
Last Updated: March 3, 2026
Current Valuation
No valuation data available
Funding Summary
$0.5M
Total reported funding
Funding
March 23, 2026
Yutori: Early-stage AI startup funding news
OSS News & Views
March 17, 2026
Heavybit: What's Missing to Make AI Agents Mainstream?
Media Mention
July 31, 2025
Medium: Human-in-the-Loop Safety for High-Stakes AI Agents with HumanLayer
Announcement
October 29, 2024
Y Combinator: HumanLayer – Human-in-the-loop for AI Agents and beyond (YC Launch)
Key People
Core OSS Projects
HumanLayer enables AI agents to communicate with humans in tool-based and async workflows. Guarantee human oversight of high-stakes function calls with approval workflows across slack, email and more. Bring your LLM and Framework of choice and start giving your AI agents safe access to the world. Agentic Workflows, human in the loop, tool calling
License: Apache-2.0
Business Information
Industries
Data & Analytics
Technologies
AI Agents
Human-in-the-loop
AI/ML
Sectors
EnterpriseDevelopers
Licenses
Apache-2.0
Socials and Communities
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