Letzai Api

This gets you full access to LetzAI's image and video generation APIs with support for multiple models like Nano Banana Pro, Flux2 Max, and VEO for videos. The real hook is the custom trained model support where you can tag your own fine-tuned models in prompts with @modelname syntax for consistent characters, products, or styles. Includes context-aware editing and upscaling. Everything's async with polling, so you'll need to handle status checks every few seconds. Good fit if you're building content generation tools or automation workflows where you need both quality options and the ability to maintain visual consistency across generations. Credit-based pricing scales with resolution and model choice.

skills.sh installs: 914
last updated: Jul 14, 2026

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Install

$ npx -y skills add letz-ai/letzai-skill --skill letzai-api --agent claude-code

Installs into .claude/skills of the current project.

Files

LetzAI API Integration Skill

Overview

Helps you integrate the LetzAI public API for AI image and video generation, editing, upscaling, asset uploads, and custom model (LoRA) training. Custom-trained models for persons, objects and styles are referenced inside prompts with @modelname.

Authentication

Base URL: https://api.letz.ai
Auth: Authorization: Bearer YOUR_API_KEY
Get an API key: letz.ai/subscription
Swagger (source of truth): api.letz.ai/doc — machine-readable at /doc-json and /doc-yaml

const headers = {
  'Content-Type': 'application/json',
  Authorization: `Bearer ${process.env.LETZAI_API_KEY}`,
};

headers = {
    "Content-Type": "application/json",
    "Authorization": f"Bearer {os.environ['LETZAI_API_KEY']}",
}

Do not confuse the public API with the private one. https://api.letz.ai is the public developer API described here. https://private-api.letz.ai powers the LetzAI web app and has different route names (/upscales, /image_completions, /video-edits). Those routes 404 on the public API.

SKILL.md on GitHub

Details

Repository: github.com/letz-ai/letzai-skill
Category: Backend & APIs