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Overview

Humanlayer integrates seamlessly with CrewAI to add human oversight to your AI applications. This guide shows you how to use Humanlayer with CrewAI.

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Installation

Install the required packages:

pip install humanlayer crewai crewai-tools python-dotenv

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Basic Example

Let’s create a simple math agent that performs basic arithmetic operations with human oversight.

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How it Works

  1. We create a HumanLayer instance with an optional run_id to identify this agent in the approval history
  2. Define two math functions as CrewAI tools using the @tool decorator
  3. Use @hl.require_approval() to require human approval before the multiply function can be called
  4. Create a CrewAI agent with these tools and a task to perform
  5. The agent will request approval before executing the multiply function

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Running the Example

  1. Set up your environment variables in .env
  2. Run the example:
python main.py

When the agent attempts to use the multiply function, it will pause and request human approval through your configured contact channel (Slack, Email, etc).

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Next Steps

For more framework examples, see https://github.com/humanlayer/humanlayer/tree/main/examples

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