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OpenAI Agents SDK Crash Course

A comprehensive tutorial series for learning OpenAI’s Agents SDK from zero to hero. Build powerful AI agents with OpenAI’s cutting-edge framework, from simple text processing to advanced voice-enabled multi-agent systems.

What is OpenAI Agents SDK?

OpenAI Agents SDK is a powerful framework for developing and deploying AI agents that provides:

Agent Orchestration

Create and manage intelligent AI agents with sophisticated workflows and coordination patterns.

Tool Integration

Extend agents with custom functions and built-in tools like WebSearch, CodeInterpreter, and FileSearch.

Structured Outputs

Type-safe responses using Pydantic models for reliable data extraction and validation.

Multi-Agent Workflows

Coordinate multiple specialized agents with handoffs, delegation, and parallel execution.

Real-time Execution

Support for sync, async, and streaming execution methods for any use case.

Voice Integration

Static, streaming, and realtime voice capabilities for conversational AI applications.

Session Management

Automatic conversation memory and history with SQLiteSession.

Production Ready

Built-in tracing, guardrails, monitoring, and observability tools.

Complete Learning Path

This crash course covers 11 comprehensive tutorials organized into progressive layers:

🌱 Foundation Layer

Build your understanding of core concepts:
1

Tutorial 1: Your First Agent

Starter Agent - Create your first OpenAI agentLearn basic agent creation, configuration, and execution methods. Understand the agent lifecycle and simple text processing.
from agents import Agent

agent = Agent(
    name="Personal Assistant",
    instructions="You are a helpful personal assistant."
)
What you’ll build: Personal assistant agents with sync, async, and streaming execution
2

Tutorial 2: Structured Outputs

Type-Safe Responses - Work with Pydantic modelsConvert unstructured AI responses into validated, structured JSON data. Perfect for building reliable integrations.
from pydantic import BaseModel
from enum import Enum

class Priority(str, Enum):
    LOW = "low"
    MEDIUM = "medium"
    HIGH = "high"

class SupportTicket(BaseModel):
    customer_name: str
    priority: Priority
    issue_description: str
What you’ll build:
  • Support ticket extractor
  • Product review analyzer
  • Email generator with structured metadata

🔧 Core Capabilities Layer

Extend agents with powerful features:
1

Tutorial 3: Tool-Using Agents

Agent Tools & Functions - Extend agent capabilitiesAdd custom functions and built-in tools to give your agents real-world superpowers:
from agents import function_tool

@function_tool
def calculate_compound_interest(
    principal: float, 
    rate: float, 
    time: int
) -> float:
    """Calculate compound interest"""
    return principal * (1 + rate) ** time

agent = Agent(
    name="Calculator",
    tools=[calculate_compound_interest]
)
Built-in tools available:
  • WebSearchTool: Real-time web search
  • CodeInterpreterTool: Execute Python code safely
  • FileSearchTool: Search through uploaded documents
What you’ll build:
  • Custom function tools for calculations
  • Research agent with web search
  • Data analysis agent with code execution
  • Agents as tools orchestration
2

Tutorial 4: Running Agents

Execution Mastery - Master the agent execution loopDeep dive into how agents run, make decisions, and handle different execution patterns:The Agent Loop:
  1. Receive user input
  2. LLM processes and decides actions
  3. Execute tools if needed
  4. Generate response
  5. Handle handoffs or continue
Execution Methods:
# Synchronous
result = Runner.run_sync(agent, "Hello")

# Asynchronous
result = await Runner.run(agent, "Hello")

# Streaming
async for event in Runner.run_streamed(agent, "Hello"):
    print(event.content)
What you’ll learn:
  • Advanced streaming events
  • Run configuration and customization
  • Conversation management
  • Exception handling
3

Tutorial 5: Context Management

State & Context Handling - Manage conversation flowLearn to maintain state across interactions, pass context between runs, and control conversation flow:
# Pass context to agent
result = Runner.run_sync(
    agent,
    "Continue the story",
    context={"previous_chapter": chapter_1}
)
What you’ll build: Stateful agents that remember context across multiple interactions

🧠 Advanced Features Layer

Implement sophisticated functionality:
1

Tutorial 6: Guardrails & Validation

Safety & Validation - Add protective boundariesImplement input validation and output filtering for safe, reliable agents:
from agents import Agent

agent = Agent(
    name="Safe Agent",
    input_guardrails=[validate_user_input],
    output_guardrails=[filter_sensitive_data]
)
Guardrail types:
  • Input guardrails: Validate user inputs before processing
  • Output guardrails: Filter and validate agent responses
  • Custom validators: Business rule enforcement
What you’ll build: Agents with content filtering, validation rules, and safety boundaries
2

Tutorial 7: Sessions & Memory

Session Management - Automatic conversation historyUse SQLiteSession for persistent conversation memory:
from agents import SQLiteSession

session = SQLiteSession("conversations.db")
result = Runner.run_sync(
    agent,
    "What did we discuss yesterday?",
    session=session
)
Features:
  • Automatic conversation history
  • Memory operations (update, delete, correct)
  • Multiple session management
  • Conversation organization
What you’ll build:
  • Agents with persistent memory
  • Multi-session conversation managers
  • Interactive Streamlit session interface

🤝 Multi-Agent Layer

Orchestrate complex agent workflows:
1

Tutorial 8: Handoffs & Delegation

Agent-to-Agent Task Delegation - Specialized agent teamsCreate triage systems where agents intelligently delegate to specialists:
from agents import Agent, handoff

billing_agent = Agent(
    name="Billing Specialist",
    instructions="Handle billing inquiries"
)

support_agent = Agent(
    name="Tech Support",
    instructions="Handle technical issues"
)

triage_agent = Agent(
    name="Triage",
    instructions="Route customers to specialists",
    handoffs=[billing_agent, support_agent]
)
Advanced handoff features:
  • Custom tool names and descriptions
  • Input filtering for context control
  • Handoff callbacks for logging
  • Structured input data passing
What you’ll build:
  • Customer support triage system
  • Advanced handoff with callbacks
  • Multi-specialist coordination
2

Tutorial 9: Multi-Agent Orchestration

Complex Workflows - Parallel and coordinated executionParallel Execution:
import asyncio

# Run multiple agents in parallel
results = await asyncio.gather(
    Runner.run(translator_agent, "Hello"),
    Runner.run(analyzer_agent, data),
    Runner.run(writer_agent, topic)
)
Agents as Tools Pattern:
# Use specialized agents as tools
orchestrator = Agent(
    name="Orchestrator",
    tools=[
        translator.as_tool("translate"),
        analyzer.as_tool("analyze")
    ]
)
What you’ll build:
  • Parallel multi-agent research systems
  • Agent orchestration with agents-as-tools
  • Multi-stage workflow coordination

🔍 Production Layer

Prepare for real-world deployment:
1

Tutorial 10: Tracing & Observability

Monitoring & Debugging - Production visibilityBuilt-in tracing for execution visualization:
from agents import Agent, Runner, trace

# Default tracing
with trace():
    result = Runner.run_sync(agent, "Process this")

# Custom traces and spans
with trace(name="custom_workflow") as t:
    with t.span("research_phase"):
        research = await Runner.run(researcher, query)
    with t.span("analysis_phase"):
        analysis = await Runner.run(analyzer, research)
What you’ll learn:
  • Built-in execution tracing
  • Custom traces for complex workflows
  • Performance monitoring
  • Debugging multi-agent systems

🎙️ Voice & Advanced Features

1

Tutorial 11: Voice Agents

Real-time Conversation - Voice-enabled agentsThree voice processing modes:1. Static Voice Processing:
# Turn-based voice interaction
audio_input = record_audio()
result = Runner.run_sync(voice_agent, audio_input)
play_audio(result.audio_output)
2. Streaming Voice:
# Real-time conversation with streaming
async for event in Runner.run_streamed(voice_agent, audio):
    if event.audio_chunk:
        play_audio_chunk(event.audio_chunk)
3. Realtime Voice (Ultra-Low Latency):
# WebSocket-based realtime conversation
async with RealtimeSession() as session:
    await session.connect(voice_agent)
    # Ultra-low latency voice conversation
What you’ll build:
  • Turn-based voice assistants
  • Streaming voice conversation apps
  • Realtime voice agents with WebSocket
  • Speech-to-text and text-to-speech pipelines

Quick Start

1

Set Up Environment

Install Python 3.8+ and get your OpenAI API key:
# Get API key from:
# https://platform.openai.com/api-keys
2

Install OpenAI Agents SDK

pip install openai-agents
3

Create Your First Agent

from agents import Agent, Runner

# Create agent
agent = Agent(
    name="Personal Assistant",
    instructions="You are a helpful assistant."
)

# Run agent
result = Runner.run_sync(agent, "Hello!")
print(result.final_output)
4

Follow the Tutorials

Start with Tutorial 1 and progress through the learning path sequentially for the best experience.

Tutorial Structure

Each tutorial follows a consistent, learner-friendly structure:
Detailed concept explanations, learning objectives, and “why” behind each feature
Working implementations with clear, commented code examples you can run immediately
Streamlit web apps for hands-on testing and experimentation
Organized examples for different concepts and variations
Clear dependencies and environment setup instructions

Key Features & Capabilities

Agent Execution Methods

Perfect for simple scripts and blocking operations:
result = Runner.run_sync(agent, "Process this")
print(result.final_output)

Tool Integration Patterns

from agents import function_tool

@function_tool
def get_weather(city: str, units: str = "metric") -> str:
    """Get current weather for a city"""
    # API call logic
    return f"Weather in {city}: 72°F, Sunny"

agent = Agent(
    name="Weather Assistant",
    tools=[get_weather]
)

Real-World Applications

By completing this course, you’ll be able to build:

Customer Support Systems

Multi-agent triage systems with specialized support agents for different departments

Research Assistants

Agents that search the web, analyze data, and generate comprehensive reports

Data Processing Pipelines

Extract structured data from unstructured inputs with type-safe validation

Voice Applications

Build voice-enabled assistants with real-time conversation capabilities

Content Generation

Automated content creation with quality validation and structured outputs

Multi-Agent Workflows

Complex systems where multiple specialized agents collaborate to solve problems

Prerequisites

Required: Python 3.8+ (Python 3.9+ for voice features), OpenAI API key, basic Python knowledge
Helpful but not required: Familiarity with async/await patterns, API concepts, JSON data structures

Environment Setup

Each tutorial requires your OpenAI API key. Create a .env file:
.env
OPENAI_API_KEY=sk-your_openai_key_here
Get your API key from OpenAI Platform

Learning Tips

1

Start Sequential

Follow tutorials in order - each builds on previous concepts
2

Experiment Freely

Modify code, try different prompts, and see what happens
3

Use Web Interfaces

Interactive Streamlit apps make learning more engaging
4

Read Error Messages

They often contain helpful guidance for troubleshooting
5

Join Community

Engage with other learners and share experiences

Common Issues & Solutions

  • Ensure .env file is in the tutorial directory
  • Verify API key is valid and has sufficient credits
  • Check for typos in environment variable name
  • Install requirements: pip install -r requirements.txt
  • Verify Python 3.8+ (3.9+ for voice features)
  • Try creating a virtual environment
  • OpenAI has rate limits based on your plan
  • Wait before retrying if you hit limits
  • Consider upgrading your OpenAI plan

Progress Tracker

Track your learning journey:
  • Tutorial 1: Basic agent creation ✨
  • Tutorial 2: Structured outputs with Pydantic
  • Tutorial 3: Tool integration and custom functions
  • Tutorial 4: Execution methods mastery
  • Tutorial 5: Context and state management
  • Tutorial 6: Guardrails and validation
  • Tutorial 7: Sessions and memory management
  • Tutorial 8: Agent handoffs and delegation
  • Tutorial 9: Multi-agent orchestration
  • Tutorial 10: Tracing and observability
  • Tutorial 11: Voice agents and real-time conversation 🎯

Additional Resources

Official Documentation

OpenAI Agents SDK comprehensive documentation

OpenAI Platform

API keys, usage dashboard, and model information

Pydantic Docs

Learn more about data validation and schemas

Streamlit Docs

Build interactive web interfaces for your agents

Next Steps

Start Learning

Set up your environment and begin with Tutorial 1: Your First Agent
Happy learning! 🚀

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