Blog
Tutorials, guides, and deep dives on computer vision, AI image processing, and building with REST APIs.
Content Moderation for Marketplace Seller Listings
Screen user-uploaded listing images on an e-commerce or classifieds marketplace with a content moderation API. A category policy that allows legit apparel but blocks prohibited products, in Python.
Marketplace Product Image Pipeline: Moderate, Clean, Tag
Process seller-uploaded product images for a marketplace with three APIs in one Python pipeline: screen for prohibited content, remove the background, and auto-tag for search.
Content Moderation API: Screen Uploads Across Risk Categories
Screen user-uploaded images for nudity, violence, drugs, and more with a content moderation API. Build a per-category policy engine and an allow/review/block flow in Python.
Background Removal at Scale: High-Volume API for Ecommerce
Process thousands of product photos with a background removal API. Batch and concurrent patterns, white-background output for marketplaces, and Python code.
Add eKYC to Your SaaS: Selfie-to-ID Face Verification API
Build an eKYC onboarding step that matches a user's selfie to their ID document. Combines a face comparison API and an OCR API, with Python and a decision flow.
Extract PDF Tables in 2026: Hybrid OCR + LLM Beats GPT-4o Vision
Vision LLMs hallucinate codes on invoices. Pure OCR loses structure. Live-tested hybrid pipeline (OCR + GPT-4o-mini) wins at 4x lower cost and 100% accuracy.
Free PDF OCR API: Extract Text from Scanned PDFs (No Setup)
Extract text from scanned PDFs with a free OCR API. No Tesseract install, no Poppler, no model setup. One API key, one HTTP request, real text back.
PDF OCR in Python: Extract Text from Scanned PDFs in 5 Lines
Extract text from a scanned PDF in 5 lines of Python with an OCR API. Multi-page support, no Tesseract install, no model setup. Working code you can copy-paste.
Photo to Anime: API vs AnimeGAN v2/v3 (Open Source)
Compare a cloud photo to anime API with AnimeGAN v2 and v3 open source. Same portrait, premium styles, benchmarks, Python code, and honest results.
Emotion Detection: Face Analyzer API vs DeepFace
Compare a cloud face analysis API with DeepFace open source for emotion detection. Side-by-side tests on 3 images, accuracy results, and code examples.
NSFW Detection: API vs NudeNet for Content Moderation
Compare a cloud NSFW detection API with NudeNet open source. Side-by-side test results, category coverage, code examples, and when to use each.
Face Recognition Attendance System with REST API (Python)
Build a face recognition attendance system in Python using a REST API for face detection and comparison. Step-by-step tutorial with Flask source code.
Extract Text from Screenshots with an OCR API
Learn to extract text from screenshots using the OCR Wizard API in Python. Handle dense text, tables, and multi-language content with accurate OCR results.
Build a Face-Based Age Verification System with API
Learn how to build a face-based age verification system using the Face Analyzer API in Python. Comply with age-gate regulations for ecommerce and delivery apps.
Face Matching in 5 Lines of Python: Detect, Encode, Compare
How face matching works under the hood and how to implement it in 5 lines of Python. Covers face detection, embedding vectors, and similarity comparison with real test results.
Tesseract is Dead. The OCR API That Replaced 500 Lines of Setup with 3.
We ran Tesseract and an OCR API on the same image. Tesseract returned nothing. The API extracted every word. Here is why developers are switching.
Turn Any Photo into Ghibli Art for Free with Python (3 Lines)
Transform your photos into Studio Ghibli style art with 3 lines of Python. No GPU, no model download, no PyTorch. 50 free transformations per month.
How I Built a Photo Editing SaaS with Zero ML Code (Just 1 API)
12 AI features, one API key, zero GPU. A complete SaaS architecture with Lambda, credits system, and a 16x margin on every request.
ID Card to JSON in 10 Lines of Python: OCR API + GPT-4o mini
Extract structured data (name, DOB, document number, expiry) from any ID card worldwide using an OCR API and GPT-4o mini. Python tutorial with cost comparison vs AWS Textract AnalyzeID.
RF-DETR vs YOLO vs Cloud API: Which Should You Actually Use in 2026?
We ran RF-DETR, YOLOv11, and a Cloud Object Detection API on the same image. Here are the real numbers on speed, accuracy, and cost.
How to Build an Anime Filter App with Python and an API
Build an anime and cartoon filter app in Python using a Photo to Anime API. Seven styles, one endpoint, no GPU or ML setup required.
Restore Old Photos with AI APIs: Colorize and Fix Faces
Combine Image Colorization and Face Restoration APIs to restore old photos programmatically. Python code, before/after results, and batch processing.
Best NSFW Image Detection APIs 2026: Free + Paid Compared
Compare the best NSFW image detection and moderation APIs in 2026. Free tier options, accuracy benchmarks, pricing, and Python code, side-by-side.
How to Blur NSFW Content in Images with Python
Step-by-step Python tutorial to detect and blur NSFW regions in images using an AI moderation API and Pillow. Complete working code included.
Build a Discord NSFW Moderation Bot with Python
Python tutorial to build a Discord bot that detects and removes NSFW images automatically. Complete code using discord.py and an AI content moderation API.
rembg vs Cloud API for Background Removal: How to Choose
Compare rembg and transparent-background to a cloud background removal API. Side-by-side results, benchmarks, and code examples.
YOLO vs Cloud API for Object Detection: How to Choose
Compare YOLO and Cloud Object Detection APIs on setup, cost, latency, and scalability. Side-by-side code examples to help you choose.
Transparent Background PNG: Create Image Cutouts with an API
Create transparent background PNGs with a background removal API. Covers edge quality, batch processing, and code examples in Python and JavaScript.
AI PDF OCR API: Extract Text from Scanned Documents (Python)
Extract text from scanned PDFs and documents with an AI OCR API. Multi-page support, Python and JavaScript code examples, page-range control for large files.
Face Swap a Video with Python and an API — Tutorial
Python tutorial for face swapping in videos. Extract frames with ffmpeg, swap faces with an AI API, and reassemble the video with optimization tips.
Best OCR APIs — Why Open-Source Falls Short for Devs
Compare Tesseract, EasyOCR, and PaddleOCR against a managed OCR API. Benchmarks on handwritten and printed text show when an API is worth it.
Face Swap & Replacement API: Examples and Code (Python)
Working examples of a face swap API in Python and JavaScript. How the endpoint works, request parameters, image format, and complete code you can copy-paste.
5 Best Background Removal APIs — Pricing & Comparison
Compare the top background removal APIs: remove.bg, PhotoRoom, Clipdrop, Slazzer, and AI Engine. Pricing, features, and code examples.
Verify User Identity with a Face Comparison API
Verify user identity by comparing a selfie against an ID photo with a face comparison API. Covers KYC, profile verification, and fraud prevention.
Build Face-Based Access Control with a Comparison API
Build a facial recognition access control system with a face comparison API. Covers enrollment, verification, and repository management.
Landmark Detection API: Identify + GPS Coordinates in Photos
Identify landmarks in photos and get GPS coordinates with an AI API. Python and JavaScript code for landmark recognition, geolocation, and image analysis.
How to Restore Old Photos with a Face Restoration API
Learn how to enhance old photos and restore faces using a Face Restoration API. Single-endpoint workflow with cURL, Python, and JavaScript code examples.
Emotion Detection & Sentiment Analysis API: A Developer's Guide
Integrate an emotion detection and sentiment analysis API into your apps. Covers emotion, personality, and communication style endpoints.
Auto-Tag Images with an AI Labeling API
Learn how to auto-tag images with an AI image labeling API. Step-by-step tutorial with cURL, Python, and JavaScript examples for automated content categorization.
How to Remove Image Backgrounds with an API
Remove image backgrounds with a REST API in Python, cURL, or JavaScript. One call for a transparent PNG, plus white, blurred, and gradient backgrounds, with verified code.
Detect Brand Logos in Images with a Logo Detection API
Detect brand logos in images with a logo detection API. Covers brand monitoring, counterfeit detection, and sponsorship tracking with code examples.
Image to Text API: Extract Text from Photos with Code Examples
Learn how to convert images to text using an OCR API. Covers handwriting recognition, document scanning, and integration examples in cURL, Python, and JavaScript.
Building a Face Detection App with a REST API
Step-by-step tutorial for building a face detection application using a REST API. Includes cURL, Python, and JavaScript code examples with the Face Analyzer API.
How to Swap Faces in Images with an AI API
Step-by-step guide to using a Face Swap API for realistic face swapping, face detection, and face enhancement. Includes cURL, Python, and JavaScript examples.
How to Generate AI Images with an API
Generate AI images programmatically with an API. Covers text-to-image generation, inpainting, and integration examples in cURL, Python, and JavaScript.
Automate Content Moderation with NSFW Detection
Learn how to use an NSFW detection API to automate content moderation at scale. Includes cURL, Python, and JavaScript examples plus real-world use cases.
How to Detect Objects in Images Using AI
Step-by-step tutorial on using an object detection API to identify and locate objects in images. Includes cURL, Python, and JavaScript code examples.
Photo to Anime & Cartoon API: AI Style Transfer with Python
Transform photos into anime, cartoon, sketch, and Ghibli styles with an AI style transfer API. Python and JavaScript code examples, no setup or training.
A Developer's Guide to Image Colorization APIs
Deep dive into image colorization APIs: how they work, code examples in cURL, Python, and JavaScript, plus best practices for restoring black-and-white photos.