Developer Guide

Veo 3.1 API: Access, Cost & Integration

Complete developer guide to integrating Veo 3.1 API: access methods, pricing, code examples, and best practices.

$0.75/s
Google API Rate
$0.12/s
Veo3Gen API Rate
10/min
Default Rate Limit

How to Access Veo 3.1 API

Option 1: Google Gemini API

Access Veo 3.1 directly through Google's Gemini API with full features.

Pros:

  • • Official Google integration
  • • Full model access
  • • Regular updates

Cons:

  • • $0.75/second pricing
  • • 10 requests/min limit
  • • Complex setup

Option 2: Vertex AI on Google Cloud

Enterprise-grade deployment with additional controls and features.

Pros:

  • • Enterprise SLAs available
  • • Advanced monitoring
  • • Better security controls

Cons:

  • • Same expensive pricing
  • • Requires GCP setup
  • • Learning curve

🏆 Option 3: Veo3Gen API (Recommended)

Same Veo 3.1 model, simpler integration, 84% lower cost.

Benefits:

  • • ✅ $0.12/second (84% savings)
  • • ✅ Higher rate limits
  • • ✅ Simple REST API
  • • ✅ Clear documentation
  • • ✅ No Google account needed
  • • ✅ Only charge on success

API Cost Comparison

API ProviderPer Second1000 API Calls*Monthly (10K calls)
Google Gemini API$0.75$6,000$60,000
Vertex AI (GCP)$0.75$6,000$60,000
Veo3Gen API$0.12$960$9,600
* Assuming 8-second videos per call
$50,400
Monthly savings at 10K API calls with Veo3Gen

Quick Start: Integration Code

Google Gemini API (Python)

import google.generativeai as genai

genai.configure(api_key="YOUR_API_KEY")

model = genai.GenerativeModel('veo-3.1-fast-generate-preview')

response = model.generate_content({
    'prompt': 'A cat playing piano, close-up shot',
    'duration': 8,
    'resolution': '1080p',
    'aspect_ratio': '16:9'
})

video_url = response.video_url

Veo3Gen API (Simpler - Any Language)

// JavaScript / Node.js
const response = await fetch('https://api.veo3gen.app/v1/generate', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    prompt: 'A cat playing piano, close-up shot',
    duration: 8,
    resolution: '1080p',
    aspectRatio: '16:9'
  })
});

const data = await response.json();
const videoUrl = data.video_url;
✨ Works with JavaScript, Python, PHP, Ruby, Go, Java, and any language that supports HTTP requests

Rate Limits & Best Practices

Google API Limits

  • 10 requests/minute (standard)
  • Max 4 videos per request
  • 1000 requests/day free tier
  • Burst limits: 100/min (paid)

Veo3Gen API Limits

  • 60 requests/minute (standard)
  • Unlimited videos per request
  • No daily caps
  • Custom limits available

🔧 API Best Practices

✅ Do:

  • • Implement retry logic with exponential backoff
  • • Cache results when possible
  • • Use webhooks for async processing
  • • Monitor API usage and costs

❌ Don't:

  • • Hardcode API keys in frontend
  • • Ignore rate limit headers
  • • Skip error handling
  • • Generate unnecessarily long videos

Authentication & Security

Google API Authentication

# Requires Google Cloud Service Account
export GOOGLE_APPLICATION_CREDENTIALS="path/to/key.json"

# Or use API key
genai.configure(api_key="YOUR_GOOGLE_API_KEY")

Veo3Gen API Authentication (Simpler)

# Simple Bearer token
curl -X POST https://api.veo3gen.app/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "A sunset over mountains"}'

✓ No OAuth, service accounts, or complex setup needed

Monitoring & Debugging

Common Errors & Solutions

❌ Error: Rate limit exceeded

Solution: Implement request queuing or upgrade API tier

HTTP 429 - Too Many Requests

⚠️ Error: Invalid prompt

Solution: Check content policy, avoid prohibited terms

HTTP 400 - Bad Request

🕐 Error: Generation timeout

Solution: Use async endpoints, implement proper timeout handling

HTTP 504 - Gateway Timeout

Start Building with Veo 3.1 API

Get API access with 84% cost savings. Simple integration, higher limits, and better developer experience.