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 side_inventory
A compact animated Gyomei Himejima inspired Demon Slayer pet with prayer beads, green haori, chained axe-and-flail, and Stone Breathing skill effects.

By side_inventory
A tiny chibi Nezuko in her Swordsmith Village pink kimono, happily animated with her brother Tanjiro braiding her hair.

By side_inventory
A single buff demon-slayer-style muscle mouse who flexes proudly and bounces its chest muscles.


By jaobreaker
“May I have some oats, brother?” uttered by a rotund little pig with a tiny face, asking with pure sincerity and immense hunger.

By side_inventory
A confident flame-haired swordsman Codex pet with large attached flame-form sword effects while Codex is running.

By akshat_creates
A tiny pixel-art George Russell-inspired racing driver pet in a dark teal-accented racing suit with a small Mercedes-style star badge.


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.



