TutorialMarch 202610 min read

AI Agent Workflows in Python: Power Your guild-packs Agents with Multimodal Inference via NexaAPI

guild-packs gives you execution-proven, safety-scanned workflows for AI agents. NexaAPI gives you the cheapest, most capable multimodal inference layer — 50+ models at $0.003/image. Together, they form a complete AI agent stack for developers in 2026.

March 28, 2026NexaAPI Team

⚡ TL;DR

  • guild-packs just launched on PyPI — proven AI agent workflow execution patterns
  • NexaAPI adds multimodal superpowers: images ($0.003), TTS, video generation
  • • One SDK, 50+ models: pip install nexaapi guild-packs
  • • 13x cheaper than DALL-E 3 — critical for production agents making thousands of API calls
  • • Free tier: rapidapi.com/user/nexaquency

What is guild-packs?

guild-packsis a Python package that provides execution-proven, safety-scanned, feedback-improving workflows for AI agents. It's designed for AI agent developers who need reliable, production-ready agent execution patterns.

pip install guild-packs nexaapi

The package provides battle-tested agent workflow templates that handle the hard parts: error recovery, retry logic, state management, and feedback loops. Instead of building these from scratch, you get proven patterns that work in production.

Why AI Agents Need a Multimodal Inference API

Modern AI agents don't just process text — they need to:

  • 🖼️ Generate images for visual tasks and reports
  • 🎵 Synthesize audio for voice interfaces
  • 🎬 Create videos for content generation pipelines
  • 📝 Process text with LLMs for reasoning

That's where NexaAPI comes in — a single API for all modalities.

  • 50+ AI models — FLUX, Kling, Stable Diffusion, Whisper, and more
  • $0.003/image — 13x cheaper than DALL-E 3
  • OpenAI-compatible — works with existing OpenAI SDK code
  • Python + JS SDKspip install nexaapi or npm install nexaapi

Tutorial: Integrating NexaAPI into AI Agent Workflows

Setup

# Install: pip install nexaapi guild-packs
from nexaapi import NexaAPI
import os

client = NexaAPI(api_key=os.environ.get('NEXAAPI_KEY', 'YOUR_API_KEY'))

Agent Action: Image Generation

def agent_image_task(prompt: str) -> str:
    """AI agent action: generate image from prompt"""
    response = client.image.generate(
        model='flux-schnell',
        prompt=prompt,
        width=1024,
        height=1024
    )
    return response.image_url

# Usage in agent workflow
image_url = agent_image_task("a professional product photo of a smartphone")
print(f"Generated: {image_url}")
print("Cost: $0.003")

Full Multimodal Agent Workflow

from nexaapi import NexaAPI
import os

client = NexaAPI(api_key=os.environ.get('NEXAAPI_KEY'))

class MultimodalAgent:
    """AI agent with multimodal capabilities powered by NexaAPI"""
    
    def __init__(self):
        self.client = client
        self.task_log = []
    
    def generate_report_image(self, data_summary: str) -> str:
        """Generate a visual report image"""
        prompt = f"Professional data visualization chart showing: {data_summary}"
        result = self.client.image.generate(
            model='flux-schnell',
            prompt=prompt
        )
        self.task_log.append(f"Generated image: {result.image_url}")
        return result.image_url
    
    def narrate_summary(self, text: str) -> str:
        """Convert text summary to audio"""
        result = self.client.audio.tts(text=text, voice='alloy')
        output_path = '/tmp/agent_report.mp3'
        with open(output_path, 'wb') as f:
            f.write(result.audio_data)
        self.task_log.append(f"Generated audio: {output_path}")
        return output_path
    
    def run_workflow(self, task: str) -> dict:
        """Execute a complete multimodal agent workflow"""
        print(f"🤖 Agent executing: {task}")
        
        # Generate visual
        image_url = self.generate_report_image(task)
        
        # Generate audio summary
        audio_path = self.narrate_summary(f"Task completed: {task}")
        
        return {
            "task": task,
            "image": image_url,
            "audio": audio_path,
            "cost": "$0.003",
            "log": self.task_log
        }

# Run the agent
agent = MultimodalAgent()
result = agent.run_workflow("quarterly sales performance analysis")
print(result)

JavaScript Version

// npm install nexaapi
import NexaAPI from 'nexaapi';

const client = new NexaAPI({ apiKey: process.env.NEXAAPI_KEY });

async function runAgentWorkflow(task) {
  console.log(`🤖 Agent executing: ${task}`);
  
  // Generate image
  const imageResult = await client.image.generate({
    model: 'flux-schnell',
    prompt: `Professional visualization of: ${task}`
  });
  
  // Generate audio
  const audioResult = await client.audio.tts({
    text: `Task completed: ${task}`,
    voice: 'alloy'
  });
  
  return {
    task,
    image: imageResult.imageUrl,
    cost: '$0.003'
  };
}

runAgentWorkflow('quarterly sales analysis').then(console.log);

Pricing Comparison

APIPrice/ImageModelsOpenAI-Compatible
NexaAPI$0.00350+
OpenAI DALL-E 3$0.043
Replicate$0.01100+
Stability AI$0.00820+

NexaAPI is 13x cheaper than DALL-E 3 — critical for production AI agents that make thousands of API calls.

Get Started with NexaAPI + guild-packs

Build production-ready multimodal AI agents in minutes. Free tier available.