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Getting Started

  • Introduction
  • Authentication
  • Quickstart

Framework Guides

  • Next.js
  • Express / Node.js
  • React Email

AI Tools

  • Overview
  • Claude Code
  • Cursor
  • v0 by Vercel
  • Lovable
  • Bolt.new
  • Windsurf

SDK Examples

  • Sending Emails
  • CDN & Storage
  • Image Processing
  • Video Streaming
  • Video Merge
  • Screenshots
  • AI Extraction
  • Integrations

Elements

  • Introduction
  • File Upload
  • Avatar Upload
  • Logo Upload
  • Image Gallery
  • Image
  • Integrations Connect

API Reference

  • Overview
  • Email Endpoints
  • CDN Endpoints
  • Screenshot Endpoints
  • Extraction Endpoints
  • Integrations Endpoints

Resources

  • Error Handling
  • Rate Limits
  • LLMs.txt

Stack0 Documentation

Production-ready infrastructure for transactional email, file storage, and image processing.

Email API

Send transactional and marketing emails with high deliverability.

CDN & Storage

Global file delivery with automatic optimization.

Image Processing

On-the-fly image transforms, resizing, and format conversion.

Screenshots

Capture website screenshots programmatically at scale.

AI Extraction

Extract structured data from any webpage using AI.

Quick Links

Quickstart
Get started in under 5 minutes
Authentication
API keys and security
Next.js Guide
App Router integration
API Reference
Complete endpoint documentation

Need help?

Check out our error handling guide or reach out to support.