Browse Codex Pets
Discover custom pet packages for OpenAI Codex CLI and Claude Code. Copy install commands, browse community pets, and open source packages.

By bra611374
Crimson Behelit egg relic with canonical misplaced facial features and unsettling face-emergence animation.



By may
A calm and powerful chibi dragon king with white scales, flowing silver hair, and an icy blade.

By side_inventory
A pixel-art Codex pet inspired by Fern, with long purple hair, calm expression, dark winter dress, white blouse, and composed mage-student poise.
By side_inventory
A pixel-art Codex pet inspired by Frieren, with silver twin-tail hair, elf ears, red earrings, white-and-gold mage outfit, and three signature expressions.

By side_inventory
A MapleStory-style Frieren pet with sleepy elf-mage expressions, blue magic casting, and a dramatic twin-tail-gripping crying animation.

By side_inventory
A quiet, restrained Demon Slayer-inspired water swordsman pet with melancholic seriousness.

By side_inventory
An elegant, playful, sharp and controlled butterfly swordswoman pet with a polite smile and poison-breath skill energy.

What Are Codex Pets?
Codex pets are virtual companions that live in your OpenAI Codex CLI terminal. Use /pet hatch to hatch a new pet, or install a custom pet package to personalize your coding companion. Custom Codex pets are defined by a pet.json file and a spritesheet.webp image — anyone can create and share one. Browse the gallery above to find community-made pets, copy the install command, and run it inside Codex to get your new companion.
Frequently Asked Questions
- How do I install a custom Codex pet?
- Copy the install command from any pet listing on this page, then run it inside your OpenAI Codex CLI session. The pet will replace your current companion.
- How do I hatch a Codex pet?
- Inside the Codex CLI, type /pet hatch to hatch a new pet from your available packages.
- How do I create a custom Codex pet?
- A Codex pet requires two files: pet.json (metadata and animation config) and spritesheet.webp (sprite frames). Host both in a public GitHub repo and submit it here for review.
- What do Codex pets do?
- Codex pets are animated companions visible in the Codex CLI sidebar. They grow, animate, and react as you code.

