CodePen.IO✓

Here's a 2-minute video showing off WebMCP + CodePen + ChatGPT App:

You can take advantage of WebMCP in other ways. @claudeai Code fan? Install the great `agent-browser` CLI tool from @vercel Labs and remind the agent it has it. Then tell it to open up CodePen `--headed` and you can control CodePen directly from there. Here's another 2-minute video on that:

"Kinetic countdown (CSS only)" by Stijn Van Minnebruggen

The in-app notification for CodePen AI was fun to make. Penny gets to zoom around the <dialog> in a <canvas> with GSAP to make it smooth.

How does CodePen AI do with the Cool S? With squigglevision? Friggin nailed it. (Wait... CodePen has AI now? 👀)

"Scroll-triggered animations: Variable Font: expand, shrink, squoosh" by utilitybend

"Ghosts" by Curtis Lawrence

It's the final week of the January #CodePenChallenge! This week, it's Game Over 👾 Thanks @Redisinc for sponsoring:

The January #CodePenChallenge continues! This week, we're playing with puzzles 🧩 Thanks @Redisinc for sponsoring!

The January #CodePenChallenge continues! This week, it's time for some cheat codes 🎮 Thanks @RedisInc for sponsoring:

"sort of custom scrollbar element" by Tom Hermans

New Year, New #CodePenChallenge! This month, we press start on 2026 with prompts inspired by video games 👾 Thanks @RedisInc for sponsoring:

"Untitled" by Neil

"Flip Text on Hover (Syntax challenge)" by Chris Bolson

"Collision detection using style queries plus keyframes" by lee

"Liquid Effect" by Kevin Levron

"Happy New Year!" by SnailCrusher

It's the final #CodePenChallenge of 2025! We're partying 'til the new year 🎆 Thanks @MongoDB for sponsoring:

"Circle Highlight" by Amit Sheen

"Global Warming" by Alexandre Vacassin

"CSS view() for carousel" by Preethi Sam

"Whirling" by yuanchuan

"Abstract Olives" by Holland Blumer