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This guide walks you through setting up CrewAI with Browserbase to create agents that can perform web automation tasks using natural language instructions.

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Step 1: Install Dependencies

Install the required packages for CrewAI and Stagehand integration: 
pip install stagehand-py crewai crewai-tools

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Step 2: Configure Environment Variables

You’ll need API keys from three services:
  1. Browserbase API Key and Project ID: Get these from your Browserbase dashboard
  2. LLM API Key: Get an API key from OpenAI or Anthropic
Store your API keys securely as environment variables: 
BROWSERBASE_API_KEY="your-browserbase-api-key"
BROWSERBASE_PROJECT_ID="your-browserbase-project-id"
OPENAI_API_KEY="your-openai-api-key"
ANTHROPIC_API_KEY="your-anthropic-api-key"

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Step 3: Create Your First Agent

Create a Python script with a basic CrewAI agent: 
import os
from crewai import Agent, Task, Crew
from crewai_tools import StagehandTool
from stagehand.schemas import AvailableModel

# Get API keys from environment
browserbase_api_key = os.environ.get("BROWSERBASE_API_KEY")
browserbase_project_id = os.environ.get("BROWSERBASE_PROJECT_ID")
model_api_key = os.environ.get("OPENAI_API_KEY")  # or ANTHROPIC_API_KEY

# Initialize the StagehandTool
stagehand_tool = StagehandTool(
    api_key=browserbase_api_key,
    project_id=browserbase_project_id,
    model_api_key=model_api_key,
    model_name=AvailableModel.GPT_4O,  # or AvailableModel.CLAUDE_3_7_SONNET_LATEST
)

# Create an agent with the tool
researcher = Agent(
    role="Web Researcher",
    goal="Find and summarize information from websites",
    backstory="I'm an expert at finding information online.",
    verbose=True,
    tools=[stagehand_tool],
)

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Step 4: Create and Run a Task

Define a task for your agent and execute it: 
# Create a task that uses the tool
research_task = Task(
    description="Go to https://www.example.com and tell me what you see on the homepage.",
    agent=researcher,
)

# Run the crew
crew = Crew(
    agents=[researcher],
    tasks=[research_task],
    verbose=True,
)

try:
    result = crew.kickoff()
    print(result)
finally:
    # Clean up resources
    stagehand_tool.close()

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Step 5: Run Your Script

Execute your Python script: 
python your_crew_script.py

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Advanced Configuration

Customize the StagehandTool behavior with additional parameters: 
stagehand_tool = StagehandTool(
    api_key=browserbase_api_key,
    project_id=browserbase_project_id, 
    model_api_key=model_api_key,
    model_name=AvailableModel.CLAUDE_3_7_SONNET_LATEST,
    dom_settle_timeout_ms=5000,  # Wait longer for DOM to settle
    headless=True,  # Run browser in headless mode
    self_heal=True,  # Attempt to recover from errors
    wait_for_captcha_solves=True,  # Wait for CAPTCHA solving
    verbose=1,  # Control logging verbosity (0-3)
)

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Example Tasks

  • Form Submission
  • Data Extraction
  • Multi-step Navigation
form_task = Task(
    description="""
    Submit a contact form:
    1. Go to https://example.com/contact
    2. Fill out the form with name 'John Doe', email 'john@example.com'
    3. Submit and confirm success
    """,
    agent=researcher,
)

CrewAI Documentation

Dive into the CrewAI documentation to learn more about its capabilities and integrations.

Browserbase Documentation

Access the Browserbase documentation for comprehensive guides and resources.
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