Introduction
# Krea.ai Image Generation Skill
Generate images using Krea.ai's API with support for multiple models including Flux, Imagen 4, Ideogram 3.0, and more.
## Features
- ✅ Async job-based generation (POST → poll → result) - ✅ Support for multiple image models - ✅ Configurable parameters (width, height, steps, guidance, seed) - ✅ Stdlib-only dependencies (no `requests` required) - ✅ Secure credential handling with file permissions
## Security
This skill prioritizes security:
- **No webhook support** - Removed to prevent SSRF risks - **Stdlib dependencies** - Minimal attack surface (uses `urllib` only) - **File-based credentials** - Primary credential source with secure permissions
### Credential Sources (in order of precedence)
1. **CLI arguments**: `--key-id` and `--secret` (for one-off use) 2. **File**: `~/.openclaw/credentials/krea.json`
### Note on Subprocess
The `--usage` flag uses `subprocess.run(["open", ...])` to open the usage dashboard in a browser. This is the only subprocess call in the skill.
## Setup
1. Get your Krea.ai API credentials from https://docs.krea.ai/developers/api-keys-and-billing 2. Create the credentials file: ```bash mkdir -p ~/.openclaw/credentials ```
3. Add your credentials: ```bash echo '{"apiKey": "YOUR_KEY_ID:YOUR_SECRET"}' > ~/.openclaw/credentials/krea.json ```
4. Set secure permissions: ```bash chmod 600 ~/.openclaw/credentials/krea.json ```
## Usage
### Command Line
```bash # Generate an image python3 krea_api.py --prompt "A sunset over the ocean"
# With specific model python3 krea_api.py --prompt "Cyberpunk city" --model imagen-4
# Custom size python3 krea_api.py --prompt "Portrait" --width 1024 --height 1280
# List available models python3 krea_api.py --list-models
# Check recent jobs python3 krea_api.py --jobs 10 ```
### Python Script
```python from krea_api import KreaAPI
api = KreaAPI() # Reads from ~/.openclaw/credentials/krea.json
# Generate and wait urls = api.generate_and_wait( prompt="A serene Japanese garden", model="flux", width=1024, height=1024 ) print(urls) ```
### Parameters
| Parameter | Type | Default | Description | |-----------|------|---------|-------------| | prompt | str | required | Image description (max 1800 chars) | | model | str | "flux" | Model name from table below | | width | int | 1024 | Image width (512-2368) | | height | int | 1024 | Image height (512-2368) | | steps | int | 25 | Generation steps (1-100) | | guidance_scale | float | 3.0 | Guidance scale (0-24) | | seed | str | None | Random seed for reproducibility |
### Available Models
| Model | Best For | |-------|----------| | flux | General purpose, high quality | | imagen-4 | Latest Google model | | ideogram-3.0 | Text in images | | seedream-4 | Fast generations | | nano-banana | Quick previews |
Run `python3 krea_api.py --list-models` for full list.
## Check Usage
Krea.ai doesn't provide a public usage API. Check your usage at:
https://www.krea.ai/settings/usage-statistics
Or list recent jobs:
```bash python3 krea_api.py --jobs 10 ```
## File Locations
| Purpose | Path | |---------|------| | Credentials | `~/.openclaw/credentials/krea.json` | | Script | `{skill}/krea_api.py` | | Skill docs | `{skill}/SKILL.md` |
## Troubleshooting
### "API credentials required"
1. Check credentials file exists: ```bash cat ~/.openclaw/credentials/krea.json ```
2. Verify permissions: ```bash ls -la ~/.openclaw/credentials/krea.json # Should show: -rw------- ```
3. Check format (must have colon): ```json {"apiKey": "KEY_ID:SECRET"} ```
### Model not found
Run `python3 krea_api.py --list-models` to see available models.
## Credits
Thanks to Claude Opus 4.5 for researching the correct API structure. The docs incorrectly suggest `/v1/images/flux` but the working endpoint is `/generate/image/bfl/flux-1-dev`.