- name
- black-forest-labs-flux
- description
- Generate images with Black Forest Labs FLUX models using a direct BFL API key. Use when the user wants FLUX image generation through Black Forest Labs itself (not fal.ai), already has a BFL API key, or specifically mentions Black Forest Labs, BFL, flux-2-pro-preview, flux-pro, flux-dev, or flux-kontext models.
Black Forest Labs FLUX
Generate images through Black Forest Labs' direct API using the bundled script in scripts/bfl-generate.sh.
Quick start
- Ensure
BFL_API_KEYis available in the environment or in/root/.clawdbot/.env. - Run:
/root/clawd/skills/black-forest-labs-flux/scripts/bfl-generate.sh "your prompt here" [output-file]Example:
/root/clawd/skills/black-forest-labs-flux/scripts/bfl-generate.sh \
"A cinematic scene of a monkey sitting proudly on top of a red Ferrari sports car" \
/root/clawd/output/monkey-ferrari.jpgThe script prints the saved file path on success.
When to use this skill
Use this skill when:
- The user has a Black Forest Labs API key
- The user wants direct FLUX generation instead of fal.ai or another wrapper
- The user mentions BFL, Black Forest Labs, or direct FLUX model endpoints
Do not use this skill for:
- fal.ai keys (
FAL_KEY) — use built-in fal support instead - OpenAI image generation
- Google Gemini image generation
Default behavior
The script defaults to:
- model:
flux-2-pro-preview - width:
1536 - height:
1024
Override these with environment variables before running:
export BFL_MODEL=flux-pro
export BFL_WIDTH=1024
export BFL_HEIGHT=1024Then call the script normally.
How it works
The BFL API is asynchronous:
- Submit a generation request
- Capture
polling_url - Poll until status becomes
Ready - Download the returned image URL
The bundled script already handles this flow.
Troubleshooting
- If the script says
BFL_API_KEY not set, add the key to the environment first. - If generation fails, inspect the JSON returned by the API; the script prints it to stderr.
- If the request succeeds but takes longer than expected, re-run with a simpler prompt or smaller dimensions.
scripts/
scripts/bfl-generate.sh— direct Black Forest Labs FLUX generation via API