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 davenov
A tiny chaotic scientist companion inspired by Rick Sanchez.


By ahtoshkaa
A mischievous squat goblin in a black three-stripe tracksuit.

By trehkolesniy
A tiny ASCII smiley companion with a round dotted face and friendly simple shoulders.








By nylla84444
A leafy green kitten digital pet, inspired by Sprigatito from pokemon.


By sir_franco_
A cute black cat with green eyes and a serious attitude.

By k0nkupa
A tiny orange-and-white cat companion with a calm smug face and a small bell collar.



By seymour
A compact mischievous Cheshire cat pet with a wide grin and striped purple-pink fur.


By seymour
A tiny pixel-adjacent Linux mascot penguin for calm coding sessions.


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.

