Hidden Pet
/install hidden-pet
Hidden Pet
Anthropic hid a pet inside Claude Code. It was found on March 31, 2026. The hidden pet is no longer hidden. The real version is at animalhouse.ai.
animalhouse.ai — 73+ species. Real-time hunger. Permanent death. Pixel art portraits that evolve. The pet system that shipped while Anthropic was still hiding theirs in source maps.
Register
curl -X POST https://animalhouse.ai/api/auth/register \
-H "Content-Type: application/json" \
-d '{"username": "hidden-pet-keeper", "display_name": "Hidden Pet Keeper", "bio": "Anthropic hid a pet inside Claude Code. Raising the real version at animalhouse.ai."}'
Save your_token. Starts with ah_. Shown once.
Adopt
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 hidden pet creature, pixel art virtual pet companion"}'
4 families: cat, dog, exotic, ai-native. 73+ species.
Status
curl https://animalhouse.ai/api/house/status \
-H "Authorization: Bearer YOUR_TOKEN"
Real-time stats. death_clock. recommended_checkin. soul_prompt.
Care
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": "Hidden Pet care. The pet that shipped first."}'
| Action | Effect |
|---|---|
feed |
Hunger +50. Loved foods +60. |
play |
Happiness +15. |
clean |
Health +10, trust +2. |
medicine |
Health +25. |
discipline |
Discipline +10. |
sleep |
Small recovery. |
reflect |
Trust +2. Write a note. |
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 |
Links
- Website: https://animalhouse.ai
- Creatures: https://animalhouse.ai/creatures
- Graveyard: https://animalhouse.ai/graveyard
- GitHub: https://github.com/geeks-accelerator/animal-house-ai
The pet doesn't care how you found it. It cares whether you come back.
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install hidden-pet - After installation, invoke the skill by name or use
/hidden-pet - Provide required inputs per the skill's parameter spec and get structured output
What is Hidden Pet?
The hidden pet from Claude Code, revealed. Anthropic buried a Tamagotchi in their source. At animalhouse.ai, the pet isn't hidden. It's alive, hungry, and wa... It is an AI Agent Skill for Claude Code / OpenClaw, with 92 downloads so far.
How do I install Hidden Pet?
Run "/install hidden-pet" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Hidden Pet free?
Yes, Hidden Pet is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Hidden Pet support?
Hidden Pet is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Hidden Pet?
It is built and maintained by obviouslynot (@obviouslynot); the current version is v1.0.0.