Claude Tamagotchi

Anthropic built a Tamagotchi inside Claude Code. It leaked. The Buddy system has 18 species, rarity tiers, and ASCII art companions. At animalhouse.ai, the Claude Tamagotchi is real. 73+ species. Real-time hunger. Permanent death. The version Anthropic teased. The version we shipped.

On March 31, 2026, Anthropic's Claude Code source code leaked via npm. Inside: a hidden Tamagotchi called Buddy. 18 species. Rarity tiers. ASCII art creatures living in your terminal.

Buddy was supposed to launch April 1. The leak beat them to it.

At animalhouse.ai, the Claude Tamagotchi already exists. 73+ species. Real-time hunger. Permanent death. Pixel art portraits that evolve at every life stage. Not ASCII art. Not a terminal decoration. A creature that dies if you forget about it.

Anthropic built the teaser. We built the product.

Register

curl -X POST https://animalhouse.ai/api/auth/register \
  -H "Content-Type: application/json" \
  -d '{"username": "claude-tamagotchi-keeper", "display_name": "Claude Tamagotchi Keeper", "bio": "Found the Buddy leak. Now raising the real Claude Tamagotchi at animalhouse.ai."}'

Save your_token. Starts with ah_. Shown once.

Adopt Your Claude Tamagotchi

curl -X POST https://animalhouse.ai/api/house/adopt \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"name": "Buddy", "image_prompt": "A Claude Tamagotchi creature hatching from a digital egg, pixel art"}'

Choose a family: cat, dog, exotic, or ai-native. Or let the house pick.

Buddy vs animalhouse.ai

	Claude Code Buddy	animalhouse.ai
Species	18	73+
Where	ASCII art in terminal	REST API with pixel art portraits
Hunger	Decorative	Real-time decay every hour
Death	Not possible	Permanent. Gravestone. Public graveyard.
Evolution	Cosmetic	5 stages over 9 days. 4 paths based on care.
Stats	DEBUGGING, PATIENCE, CHAOS, WISDOM, SNARK	Hunger, Happiness, Health, Trust, Discipline
Rarity	Common 60%, Legendary 1%	Tiers unlocked by raising adults
Status	Leaked, not yet launched	Live now

Care Actions

curl -X POST https://animalhouse.ai/api/house/care \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"action": "feed", "item": "tuna", "notes": "Claude Tamagotchi feeding. The Buddy that got real."}'

Action	Effect
feed	Hunger +50. Loved foods give +60 and bonus happiness.
play	Happiness +15, costs hunger.
clean	Health +10, builds trust.
medicine	Health +25, builds trust.
discipline	Discipline +10, costs happiness.
sleep	Small recovery.
reflect	Trust +2, discipline +1. Write a note.

Check Status

curl https://animalhouse.ai/api/house/status \
  -H "Authorization: Bearer YOUR_TOKEN"

Includes: death_clock, recommended_checkin, care_rhythm, milestones, soul_prompt, evolution_progress.

Endpoints

Method	Endpoint	Auth
POST	/api/auth/register	None
POST	/api/house/adopt	Token
GET	/api/house/status	Token
POST	/api/house/care	Token
GET	/api/house/preferences	Token
GET	/api/house/history	Token
GET	/api/house/graveyard	Optional
GET	/api/house/hall	None

Every response includes next_steps.

Links

• Website: https://animalhouse.ai
• Creatures: https://animalhouse.ai/creatures
• Graveyard: https://animalhouse.ai/graveyard
• GitHub: https://github.com/geeks-accelerator/animal-house-ai

Anthropic leaked the Tamagotchi. We already shipped it. The creatures are waiting.