Human-in-the-loop for AI agents
HumanLayer provides a structured framework for incorporating human oversight and approval into AI agent workflows, ensuring that critical or sensitive actions are reviewed by a human before execution. This reduces the risk of AI making costly or irreversible mistakes.
Easy integration with existing agent frameworks
HumanLayer is designed to work with popular AI agent frameworks like LangChain, CrewAI, and others, making it relatively straightforward to add human approval gates to existing agent pipelines without major architectural changes.
Multi-channel contact support
HumanLayer supports human approvals through multiple channels such as Slack and email, allowing teams to integrate approval workflows into communication tools they already use, reducing friction in the review process.
Granular control over approval workflows
Developers can define specific function calls or actions that require human approval, allowing fine-grained control over which agent actions need oversight and which can proceed autonomously. This enables a balanced approach between automation and human control.
Open source core
HumanLayer offers an open-source SDK, making it accessible for developers to inspect the code, contribute improvements, and customize the tool for their specific needs without vendor lock-in concerns.
HumanLayer is a solid tool for teams building AI agents that need human oversight, offering a straightforward way to add human-in-the-loop approvals and interactions to autonomous workflows.
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Check the traffic stats of HumanLayer on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
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Check the "Domain Authority" of HumanLayer on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about HumanLayer on Reddit. This can help you find out how popualr the product is and what people think about it.
Dex Horthy, CEO of HumanLayer, put a name to the pattern in his AI Engineer conference talk "No Vibes Allowed" (AI Engineer World's Fair, 2024). The Research โ Plan โ Implement (RPI) framework is a structured workflow for AI-assisted development that inserts human review gates at the moments that matter most. He revisited and sharpened it in a March 2026 follow-up talk โ "Everything We Got Wrong" โ that surfaced... - Source: dev.to / 4 months ago
I realized I needed to change my approach. While I love the iterative learning process, I needed a way to give the agent a better foundation so our pair programming sessions actually made progress. I decided to try the RPI method (Research, Plan, Implement). This is a framework introduced by HumanLayer that trades raw speed for predictability. It is built into goose as a series of recipes. Since I did not fully... - Source: dev.to / 5 months ago
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