Free Image Generation API - Placeholders, Social Cards, OG Images

Published Feb 20, 2026 · API Guide · 5 min read

Generate placeholder images, social media cards, OG images, avatars, badges, gradients, and patterns via API. Free tier.

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Open API Playground

Welcome to the DevProToolkit API platform, where you can create stunning images from text prompts using our Free AI Image Generation API. Our API is designed to provide high-quality images with consistent results, making it perfect for a variety of applications.

With our API, you can generate images in multiple art styles, including realistic, artistic, cartoon, and sketch. You can also specify the width, height, and format of the image, giving you complete control over the output. Whether you're a developer, marketer, or artist, our API is the perfect tool for you.

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Open Image Generation Playground

What Is an AI Image Generation API?

An AI Image Generation API is a powerful tool that uses artificial intelligence to generate images from text prompts. Our API is trained on a vast dataset of images and can generate high-quality images in a variety of styles.

How AI Image Generation Works

Our AI Image Generation API uses a combination of natural language processing (NLP) and computer vision to generate images from text prompts. The process involves the following steps:

Getting Started

To get started with our API, you need to sign up at api.commandsector.in/signup. Once you have an account, you can obtain an API key and start making requests to our API.

The base URL for our API is https://api.commandsector.in. You can sign up for an account at https://api.commandsector.in/signup.

API Reference

The endpoint for our API is POST /api/image/generate. You need to include the following parameters in your request:

Parameter Description
prompt The text prompt to generate an image from.
width The width of the generated image (256-1024).
height The height of the generated image (256-1024).
style The style of the generated image (realistic, artistic, cartoon, sketch).
num_images The number of images to generate (1-4).
format The format of the generated image (png, jpg, webp).

You need to include your API key in the X-API-Key header of your request.

Art Styles Explained

Our API supports the following art styles:

cURL Examples

curl -X POST \
  https://api.commandsector.in/api/image/generate \
  -H 'X-API-Key: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"prompt": "A sunny day at the beach", "width": 512, "height": 512, "style": "realistic", "num_images": 1, "format": "png"}'
curl -X POST \
  https://api.commandsector.in/api/image/generate \
  -H 'X-API-Key: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"prompt": "A futuristic cityscape", "width": 1024, "height": 1024, "style": "artistic", "num_images": 2, "format": "jpg"}'
curl -X POST \
  https://api.commandsector.in/api/image/generate \
  -H 'X-API-Key: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"prompt": "A fantasy landscape", "width": 512, "height": 512, "style": "cartoon", "num_images": 3, "format": "webp"}'

Python Integration

import requests

api_key = "YOUR_API_KEY"
prompt = "A sunny day at the beach"
width = 512
height = 512
style = "realistic"
num_images = 1
format = "png"

url = "https://api.commandsector.in/api/image/generate"
headers = {"X-API-Key": api_key, "Content-Type": "application/json"}
data = {"prompt": prompt, "width": width, "height": height, "style": style, "num_images": num_images, "format": format}

response = requests.post(url, headers=headers, json=data)

if response.status_code == 200:
    print("Image generated successfully!")
else:
    print("Error generating image:", response.text)

JavaScript / Node.js Integration

const axios = require("axios");

const api_key = "YOUR_API_KEY";
const prompt = "A sunny day at the beach";
const width = 512;
const height = 512;
const style = "realistic";
const num_images = 1;
const format = "png";

const url = "https://api.commandsector.in/api/image/generate";
const headers = { "X-API-Key": api_key, "Content-Type": "application/json" };
const data = { prompt, width, height, style, num_images, format };

axios.post(url, data, { headers })
  .then((response) => {
    if (response.status === 200) {
      console.log("Image generated successfully!");
    } else {
      console.log("Error generating image:", response.data);
    }
  })
  .catch((error) => {
    console.log("Error:", error);
  });

Prompt Engineering Tips

Here are some tips for crafting effective text prompts:

Use Cases

Our API has a wide range of applications, including:

The DevProToolkit API supports a variety of art styles that can be used to generate unique and captivating images. Each style has its own characteristics, best use cases, and example prompts.

The realistic style generates highly detailed and realistic images, often indistinguishable from real photographs. Best use cases include product photography, architectural visualization, and medical imaging. Example prompts: "A realistic image of a luxury watch", "A detailed rendering of a human brain".

The artistic style produces creative and often abstract images, reminiscent of famous artists. Best use cases include generating artwork for albums, books, or advertising campaigns. Example prompts: "An artistic painting of a cityscape in the style of Van Gogh", "A watercolor portrait of a famous historical figure".

The cartoon style creates colorful and whimsical images, often used in children's entertainment or educational content. Best use cases include creating characters, illustrations, or animations for kids' shows or video games. Example prompts: "A cartoon character of a smiling rabbit", "A colorful illustration of a fantasy world".

The sketch style generates simple yet expressive images, often used for quick concept art or storyboarding. Best use cases include creating rough drafts, prototypes, or mockups. Example prompts: "A sketch of a futuristic cityscape", "A simple drawing of a product design".

Prompt Engineering Guide

To get the most out of the DevProToolkit API, it's essential to craft well-written prompts. Here are 8 tips for writing better prompts:

  1. Be specific: Clearly define what you want to generate, including any specific objects, scenes, or characters.
  2. Use descriptive adjectives: Add adjectives to describe the mood, atmosphere, or style of the image.
  3. Specify lighting/mood: Define the lighting conditions, such as bright, dim, or warm, to set the tone of the image.
  4. Mention camera angle: Specify the camera angle, such as top-down, close-up, or wide-angle, to control the composition.
  5. Define art style: Choose a specific art style, such as realistic, artistic, cartoon, or sketch, to determine the visual aesthetic.
  6. Include negative constraints: Specify what you don't want to include in the image, such as certain objects or colors.
  7. Use reference artists/styles: Reference famous artists, styles, or movements to inspire the generation process.
  8. Iterate: Refine your prompts through iteration, using the results of previous generations to inform and improve future prompts.
Example prompts:
"Generate a realistic image of a futuristic cityscape at sunset, with a warm glow and a top-down camera angle, in the style of Blade Runner."
"Create an artistic painting of a fantasy world, with rolling hills, towering mountains, and a misty atmosphere, inspired by the works of J.R.R. Tolkien."

Building an AI Art Generator App

In this tutorial, we'll build a simple web app that uses the DevProToolkit API to generate images based on user input.

HTML:
<input id="prompt" type="text" placeholder="Enter your prompt">
<button id="generate">Generate Image</button>
<img id="result" src="">

JavaScript:
const apiEndpoint = 'https://api.commandsector.in/image-api';
const promptInput = document.getElementById('prompt');
const generateButton = document.getElementById('generate');
const resultImage = document.getElementById('result');

generateButton.addEventListener('click', async () => {
  const prompt = promptInput.value;
  const response = await fetch(apiEndpoint, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ prompt }),
  });
  const imageData = await response.json();
  resultImage.src = imageData.url;
});

This code sets up a basic web app with a text input for the prompt, a button to generate the image, and an image tag to display the result. When the button is clicked, it sends a POST request to the API with the user's prompt and displays the generated image.

Batch Image Generation

To generate multiple images efficiently, you can use the DevProToolkit API's batch endpoint. Here's an example using Python and the aiohttp library:

import aiohttp
import asyncio

async def generate_images(prompts):
  async with aiohttp.ClientSession() as session:
    tasks = []
    for prompt in prompts:
      task = asyncio.create_task(session.post('https://api.commandsector.in/image-api/batch', json={'prompt': prompt}))
      tasks.append(task)
    results = await asyncio.gather(*tasks)
    return [result.json()['url'] for result in results]

prompts = ['image 1 prompt', 'image 2 prompt', 'image 3 prompt']
image_urls = asyncio.run(generate_images(prompts))
print(image_urls)

This code defines a function `generate_images` that takes a list of prompts and uses the aiohttp library to send a POST request to the batch endpoint for each prompt. The results are then gathered and returned as a list of image URLs.

Comparison: AI Image APIs

Here's a comparison of the DevProToolkit API with other popular AI image APIs:

API Free Tier Max Resolution Styles Speed Commercial Use
DevProToolkit 100 requests/day 1024x1024 realistic, artistic, cartoon, sketch fast allowed
DALL-E API 50 requests/day 512x512 various slow not allowed
Stability AI 20 requests/day 256x256 limited medium allowed
Midjourney API 10 requests/day 128x128 basic slow not allowed

Note that the free tier limits and features may change over time, so be sure to check the documentation for each API for the most up-to-date information.

Pricing & Rate Limits

We offer the following pricing plans:

Plan Images per Day Price
Free 100 $0
Pro 10,000 $9.99/mo
Enterprise Unlimited Contact us for custom pricing

FAQ

Can I use the API for commercial purposes?

Do I own the rights to the generated images?

What is the maximum resolution of the generated images?

The maximum resolution of the generated images is 1024x1024 pixels.

How fast can I generate images?

The speed of image generation depends on the complexity of the prompt and the resources available. However, our API is designed to generate images quickly and efficiently.

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curl "http://147.224.212.116/api/..." \
  -H "X-API-Key: YOUR_API_KEY"

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