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Tutorials, guides, and deep dives on computer vision, AI image processing, and building with REST APIs.
Remove Video Background in Python with an API
Remove a video background in Python: extract frames with ffmpeg, cut out each one with an API, and rebuild a transparent WebM or a new MP4. Tested code.
Face Swap in Python: Batch Swap One Face onto Templates
Face swap in Python with an API: swap one selfie onto a folder of template images in parallel, skip images with no face, and save every result to disk.
Clarifai NSFW API Alternative: Migrate in Python
The Clarifai API host no longer resolves. Map its nsfw-recognition and moderation concepts to a live NSFW API with tested Python code and real results.
Best Discord NSFW Bots to Block Explicit Images (2026)
Compare 4 Discord NSFW filter bots that detect and delete explicit images, GIFs and videos, plus how to build your own with an API and Python.
Photoroom API Pricing per Image and a Lower-Cost Alternative
Photoroom's remove background API costs $0.02 per image, $0.10 on Plus. See how it compares to Clipdrop, plus a drop-in Python alternative.
Kairos and Betaface API Alternative: Drop-in Python Code
Kairos moved to identity verification and the public Betaface API is down. Replace enroll, recognize and verify with drop-in Python code, tested live.
Group Photos by Face in Python: One Album per Person
Group photos by face in Python: detect every face, match it in a face repository and sort a photo library into one album per person. Real results inside.
Blur Faces in Photos Automatically with Python (GDPR)
Blur faces automatically in Python: detect every face with one API call, pixelate it with Pillow and strip GPS data. Batch script and GDPR tips included.
face-api.js Alternative: Face Recognition in Node.js
face-api.js has not shipped a release since 2020. Replace it with a face recognition API in Node.js: detection, comparison and FaceMatcher-style search, tested.
Find Event Photos by Selfie with a Face Search API
Let guests find their event photos with one selfie: index every photo with a face search API and return each guest's matches in Python. Real results inside.
Detect Duplicate Accounts with a Face Search API
Stop multi-accounting and bonus abuse at signup: search each new selfie in a face index and flag repeat users. Python code, real similarity scores, GDPR notes.
NSFW Filter for AI-Generated Images: Check Before You Show
Add an NSFW filter to AI-generated images: moderate every output before display, apply a per-category policy, retry blocked seeds and log decisions in Python.
Can AI Make Transparent PNGs? Gemini, ChatGPT, Grok
Gemini (nano banana), Grok and Midjourney give you a painted checkerboard, not real transparency. See which tools can, and how to get a true transparent PNG.
Best Age Verification APIs in 2026: Pricing Compared
Compare age verification APIs in 2026: facial age estimation vs ID checks, liveness, cost at 10,000 checks a month, and a Python age gate with a safety buffer.
NSFW Video and GIF Moderation with Python and an API
Moderate video and GIF uploads for NSFW content in Python: sample frames with ffmpeg, score them with an API, aggregate per category, stop early to save calls.
Clipdrop API Pricing in 2026 and a Cheaper Alternative
Clipdrop's remove background API costs $0.144 to $0.50 per image in credit packs. See its docs, limits and a drop-in alternative at $0.0013 per image.
remove.bg API Shutting Down: Migrate Your Code in 10 Minutes
The remove.bg API stops on 1 December 2026. Map every parameter to a new API, swap one function, and keep background removal running in production.
Best Face Recognition & Comparison APIs in 2026 (Pricing)
Compare face recognition APIs in 2026: face comparison (1:1), face search (1:N), free tiers, cost at 10,000 calls a month, and which APIs went offline.
Marketplace Content Moderation: Automate Product Listings
Automate product listing moderation on an e-commerce marketplace: screen seller images with a content moderation API, then approve, review or reject 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.
High-Volume Background Removal API for Product Catalogs
Integrate a background removal API into your product catalog pipeline: concurrent batches, white backgrounds, square catalog images. Tested 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.
NudeNet v3 in Python: Tested vs an NSFW Detection API
NudeNet v3 in Python: install it, run NudeDetector, censor and batch images, then compare it with a cloud NSFW detection API on the same photos.
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.
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.
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, categories, confidence scores, 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.
Best Background Removal APIs in 2026: Pricing Compared
Compare background removal APIs in 2026: cost per image at 10,000 images a month, free tiers, and what the remove.bg API shutdown means for your app.
KYC Selfie Verification with a Face Comparison API
Check a KYC selfie against an ID photo with a face comparison API. Python code and real results, plus profile verification and fraud prevention.
Face Comparison API: Match and Verify Two Faces in Python
Compare two faces with a face comparison API: match a selfie to an ID photo in Python, cURL or JavaScript and turn the response into a clear verify decision.
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.