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Launch HN: Human Layer (YC F24) – Human-in-the-Loop API for AI Systems

Nov 26, 2024 - news.ycombinator.com
Dex is developing HumanLayer, an API that allows AI agents to contact humans for feedback, input, and approvals, thereby ensuring safe deployment of autonomous AI systems. The API can be used with Python or TypeScript SDKs and offers a free trial. The system allows for human oversight in AI systems, which can be crucial in situations where AI systems might be too risky to deploy. The system was initially developed to automate tasks like dropping unused tables, but evolved to include approval flows and guardrails to prevent miscommunication.

HumanLayer's SDK works with any AI framework and any language model that supports tool calling. It can be used for human-to-human approval, not just AI-to-human. The system is already being used in innovative ways, such as drafting personalized sales emails and powering an AI newsletter. It also allows for a customer-facing DevOps agent that reviews PRs, plans and executes db migrations, all while getting human sign-off at critical steps. The system offers a free tier and flexible credits-based pricing, with additional features and priority support for teams building customer-facing agents.

Key takeaways:

  • HumanLayer is an API that allows AI agents to contact humans for feedback, input, and approvals, enabling safe deployment of autonomous AI systems in production.
  • HumanLayer can be integrated with any AI framework and language model that supports tool calling, and it can be used for both AI-to-human and human-to-human approvals.
  • HumanLayer is already being used in innovative ways, such as powering an AI newsletter where subscribers can have email conversations with the content, and building a customer-facing DevOps agent that reviews PRs and executes db migrations with human sign-off at critical steps.
  • HumanLayer offers a free tier and flexible credits-based pricing, with additional features, whitelabeling, and priority support for teams building customer-facing agents.
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