Codex Pets

Browse Codex Pets

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

PET·EARTHD listed
Earth Delegate preview
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Earth Delegate

By simocracy

A living earth and soil delegate for an interspecies parliament.

0000Updated May 20, 2026
PET·FEYNMA listed
Feynman preview
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Feynman

By simocracy

A tiny Codex-style Richard Feynman pet with lively scientist energy.

1000Updated Jun 13, 2026
PET·HEDGEH listed
Hedgehog preview
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Hedgehog

By simocracy

A careful hedgehog delegate for an interspecies parliament.

0000Updated May 20, 2026
PET·HUMBOL listed
Humboldt preview
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Humboldt

By simocracy

A tiny Alexander von Humboldt-inspired naturalist explorer companion.

0000Updated May 20, 2026
PET·JUERGE listed
Juergen Habermas preview
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Juergen Habermas

By simocracy

A tiny Codex-style Juergen Habermas pet for calm discussion and critique.

0000Updated May 20, 2026
PET·BUDDHI listed
Buddhist preview
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Buddhist

By simocracy

A tiny Buddhist monk companion with a calm, compassionate presence.

0000Updated May 20, 2026
PET·LEONAR listed
Leonardo da Vinci preview
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Leonardo da Vinci

By simocracy

A tiny Codex-style Leonardo da Vinci pet for inventive sketching and calm curiosity.

0000Updated May 20, 2026
PET·ADALOV listed
Ada Lovelace preview
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Ada Lovelace

By simocracy

A tiny Codex-style Ada Lovelace pet with calm analytical charm.

0000Updated May 20, 2026
PET·MARIEC listed
Marie Curie preview
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Marie Curie

By simocracy

A tiny Codex-style Marie Curie pet for steady scientific curiosity.

1000Updated Jun 13, 2026
PET·NEWTON listed
Newton preview
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Newton

By simocracy

A tiny Isaac Newton-inspired natural philosopher companion.

0000Updated May 20, 2026
PET·OCTOPU listed
Octopus preview
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Octopus

By simocracy

A thoughtful octopus delegate for an interspecies parliament.

0000Updated May 20, 2026
PET·ORANGU listed
Orang-Utan preview
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Orang-Utan

By simocracy

A thoughtful orangutan delegate for an interspecies parliament.

1000Updated Jun 14, 2026
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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.