MCP Hub

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.

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PET·SAURON listed

By hjlarrea

A compact dark-fantasy eye creature with a molten vertical iris inside a jagged black-iron shell.

codex codex-pet codex-pets pet

45600Updated Aug 14, 2026

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PET·RON6F8 listed

By hjlarrea

Ron, the malfunctioning B-Bot from Ron’s Gone Wrong, preserved as the recognizable film character in a compact animated Codex pet.

codex codex-pet codex-pets pet

24100Updated Aug 13, 2026

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PET·TRON92 listed

By hjlarrea

A compact heroic digital program in a black suit with bright cyan circuitry.

codex codex-pet codex-pets pet

13000Updated Aug 13, 2026

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PET·TESSER listed

By hjlarrea

A friendly impossible nested-cube pet inspired by Interstellar’s higher-dimensional tesseract.

codex codex-pet codex-pets pet

16100Updated Aug 14, 2026

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PET·TARSEA listed

By hjlarrea

A compact articulated rectangular robot inspired by TARS from Interstellar.

codex codex-pet codex-pets pet

26200Updated Aug 14, 2026

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PET·MONOLI listed

By hjlarrea

An enigmatic black monolith pet with luminous-looking cobalt and silver edge details.

codex codex-pet codex-pets pet

15000Updated Aug 12, 2026

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PET·GRID76 listed

By hjlarrea

A compact living fragment of the digital Grid, traced with cyan and amber circuitry.

codex codex-pet codex-pets pet

14100Updated Aug 14, 2026

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PET·RITAEC listed

By Pecco-Pecco

A playful torbie cat who is active, curious, and friendly, moving in quick little steps with an affectionate side.

cat codex codex-pet pet+2

12000Updated Aug 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.