guild-packs + NexaAPI: Build Production-Ready AI Agent Workflows in Python (2025)

#ai #python #agents #tutorial

guild-packs just launched on PyPI — and if you're building AI agent workflows in Python, this is worth your attention.

guild-packs provides execution-proven, safety-scanned, feedback-improving workflows for AI agents. But every great workflow needs a powerful AI inference backend.

Enter NexaAPI — 56+ AI models at $0.003/image. Here's how to combine them.

Install

pip install nexaapi guild-packs

Get your API key: https://rapidapi.com/user/nexaquency

Complete Tutorial: guild-packs + NexaAPI

Python Code Example

# guild-packs + NexaAPI: Production-Ready AI Agent Workflows
# Install: pip install nexaapi guild-packs

from nexaapi import NexaAPI
import os

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

# AI Agent workflow step — generate an image as part of a guild-packs pipeline
def agent_image_generation_step(prompt: str, width: int = 1024, height: int = 1024) -> dict:
    """
    AI agent action: generate image via NexaAPI
    Cost: $0.003 per image — 13x cheaper than DALL-E 3
    """
    response = client.image.generate(
        model='flux-schnell',
        prompt=prompt,
        width=width,
        height=height
    )
    return {
        'image_url': response.image_url,
        'cost': '$0.003',
        'model': 'flux-schnell'
    }

# AI Agent workflow step — text-to-speech
def agent_tts_step(text: str, voice: str = 'alloy') -> dict:
    """AI agent action: convert text to speech"""
    response = client.audio.tts(text=text, voice=voice)
    return {
        'audio_data': response.audio_data,
        'voice': voice
    }

# AI Agent workflow step — video generation
def agent_video_step(prompt: str) -> dict:
    """AI agent action: generate video"""
    response = client.video.generate(
        model='kling-v1',
        prompt=prompt
    )
    return {
        'video_url': response.video_url,
        'model': 'kling-v1'
    }

# Example: Run a complete multimodal agent workflow
def run_agent_pipeline(task_description: str):
    print(f"🤖 Running guild-packs + NexaAPI agent pipeline...")
    print(f"   Task: {task_description}")

    # Step 1: Generate visual asset
    image_result = agent_image_generation_step(
        prompt=f"Professional illustration for: {task_description}",
        width=1024,
        height=1024
    )
    print(f"   ✅ Image generated: {image_result['image_url']}")
    print(f"   💰 Cost: {image_result['cost']}")

    # Step 2: Generate audio summary
    tts_result = agent_tts_step(
        text=f"AI agent task completed: {task_description}. Powered by NexaAPI.",
        voice='nova'
    )
    print(f"   ✅ Audio generated: {len(tts_result['audio_data'])} bytes")

    return {
        'task': task_description,
        'image': image_result,
        'audio': tts_result,
        'total_cost': '$0.003'
    }

if __name__ == '__main__':
    result = run_agent_pipeline("generate product launch announcement materials")
    print(f"\n✅ Pipeline complete!")
    print(f"   Image: {result['image']['image_url']}")
    print(f"   Total cost: {result['total_cost']}")

JavaScript Version

// npm install nexaapi
import NexaAPI from 'nexaapi';
import { writeFileSync } from 'fs';

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

// guild-packs compatible agent workflow step
async function agentImageStep(prompt, options = {}) {
  const result = await client.image.generate({
    model: 'flux-schnell',
    prompt,
    width: options.width || 1024,
    height: options.height || 1024
  });
  console.log(`✅ Image generated — Cost: $0.003`);
  return { imageUrl: result.imageUrl, cost: '$0.003' };
}

async function agentTtsStep(text, voice = 'alloy') {
  const result = await client.audio.tts({ text, voice });
  writeFileSync('/tmp/agent_audio.mp3', result.audioData);
  return { audioPath: '/tmp/agent_audio.mp3' };
}

// Run pipeline
async function runAgentPipeline(task) {
  console.log(`🤖 Running agent pipeline: ${task}`);
  const image = await agentImageStep(`Professional illustration for: ${task}`);
  const audio = await agentTtsStep(`Task completed: ${task}`);
  return { task, image, audio };
}

runAgentPipeline('product launch announcement').then(result => {
  console.log('✅ Pipeline complete:', result.image.imageUrl);
});

Why NexaAPI for guild-packs Workflows?

Metric	NexaAPI	OpenAI	Replicate
Price/image	$0.003	$0.04	$0.01
Models	56+	3	100+
OpenAI SDK compatible	✅	✅	❌
Free tier	✅	Limited	✅

For production AI agent pipelines that make thousands of API calls, NexaAPI's pricing makes a massive difference.

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