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HumanLayer is an API and SDK that enables AI Agents to contact humans for feedback, input, and approvals.

Key Features:

Require Human Approval for Function Calls

OmniChannel Contact

Advanced Approvals

Human as Tool

Granular Routing

Bring your own LLM + Framework

Use Cases:

Guarantee human oversight of key function calls

Add a variety of human contact channels to your agent toolchain

Create asynchronous, outer-loop agent workflows

Invert the flow of control, from human-initiated to agent-initiated

Custom Responses and Escalations

Route to specific individuals or teams, and control which users can approve or respond to LLM requests

Benefits:

Guarantee human oversight of key function calls

On denial, feedback added to agent context window

Add a variety of human contact channels to your agent toolchain