docs: NanoBanana Image Gen Skill für BSN-Artikel-Bilder
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---
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name: nanobanana-image-gen
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description: Bilder per NanoBanana API generieren — Text-to-Image + Image-to-Image (Brettspiel-Cover + Prompt) für BSN-News-Artikel
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version: 1.0.0
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category: creative
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metadata:
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hermes:
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tags: [nanobanana, image-generation, bsn, article-images, midjourney-alternative]
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base_url: https://api.nanobananaapi.ai
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token_env: NANOBANANA_API_KEY
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docs: https://docs.nanobananaapi.ai
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---
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# NanoBanana Image Generation — BSN News
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> **API:** https://api.nanobananaapi.ai
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> **Docs:** https://docs.nanobananaapi.ai
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> **Auth:** `Authorization: Bearer <API_KEY>` (in `~/.hermes/profiles/cody/.env` als `NANOBANANA_API_KEY`)
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> **Modelle:** NanoBanana AI (Basis), NanoBanana 2 (empfohlen), NanoBanana Pro
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---
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## API-Referenz
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### POST /api/v1/nanobanana/generate-2 (empfohlen)
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```json
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{
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"prompt": "Text-Prompt (max 20.000 Zeichen)",
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"imageUrls": ["https://...brettspiel-cover.jpg"], // [] für Text-to-Image
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"aspectRatio": "16:9", // 1:1|1:4|2:3|3:2|3:4|4:3|4:5|5:4|9:16|16:9|21:9|auto
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"resolution": "2K", // 1K|2K|4K
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"googleSearch": false, // Web-Grounding für Akkuratesse
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"outputFormat": "jpg", // png|jpg
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"callBackUrl": "" // Optional, für async
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}
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```
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**Response:** `{"code": 200, "msg": "success", "data": {"taskId": "abc123"}}`
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### GET /api/v1/nanobanana/record-info?taskId=abc123
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**Response (fertig):**
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```json
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{
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"code": 200,
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"data": {
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"status": "SUCCESS",
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"imageUrls": ["https://cdn.nanobananaapi.ai/result/abc123_0.jpg"],
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"prompt": "...",
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"taskId": "abc123"
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}
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}
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```
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**Status-Werte:** `PENDING` → warten, `SUCCESS` → fertig, `FAILED` → Fehler
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### POST /api/v1/nanobanana/generate (Basis-Modell)
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```json
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{
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"prompt": "...",
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"type": "TEXTTOIAMGE", // TEXTTOIAMGE|IMAGETOIAMGE
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"numImages": 1, // 1-4
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"imageUrls": [],
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"callBackUrl": ""
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}
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```
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---
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## BSN-Use-Cases
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### 1. Artikel-Header-Bild aus Prompt
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```bash
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curl -s -X POST "https://api.nanobananaapi.ai/api/v1/nanobanana/generate-2" \
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-H "Authorization: Bearer $(bsn-secrets get bsn/nanobanana-key)" \
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-H "Content-Type: application/json" \
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-d '{
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"prompt": "Professional board game photography of Catan, hexagonal tiles, wooden pieces, warm lighting, 4K product shot style",
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"aspectRatio": "16:9",
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"resolution": "2K",
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"imageUrls": [],
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"outputFormat": "jpg"
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}'
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```
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### 2. Brettspiel-Cover veredeln (Image-to-Image)
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```bash
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curl -s -X POST "https://api.nanobananaapi.ai/api/v1/nanobanana/generate-2" \
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-H "Authorization: Bearer $(bsn-secrets get bsn/nanobanana-key)" \
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-H "Content-Type: application/json" \
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-d '{
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"prompt": "Transform this board game cover into a cinematic movie poster style, dramatic lighting, epic composition, keep the game title and theme",
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"imageUrls": ["https://example.com/catan-cover.jpg"],
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"aspectRatio": "2:3",
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"resolution": "2K",
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"outputFormat": "jpg"
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}'
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```
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### 3. Polling bis zum Ergebnis (Python)
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```python
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import time, requests, json
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API_KEY = subprocess.run(["bsn-secrets","get","bsn/nanobanana-key"], capture_output=True, text=True).stdout.strip()
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HEADERS = {"Authorization": f"Bearer {API_KEY}", "Content-Type": "application/json"}
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# Task starten
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resp = requests.post("https://api.nanobananaapi.ai/api/v1/nanobanana/generate-2", headers=HEADERS, json={
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"prompt": prompt,
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"imageUrls": image_urls if image_urls else [],
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"aspectRatio": aspect_ratio,
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"resolution": resolution,
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"outputFormat": output_format,
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}).json()
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task_id = resp["data"]["taskId"]
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# Pollen
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for _ in range(30): # max 5 Minuten
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time.sleep(10)
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r = requests.get(f"https://api.nanobananaapi.ai/api/v1/nanobanana/record-info?taskId={task_id}", headers=HEADERS).json()
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if r["data"]["status"] == "SUCCESS":
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return r["data"]["imageUrls"]
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elif r["data"]["status"] == "FAILED":
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raise Exception("Generation failed")
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raise TimeoutError("Timeout after 5 minutes")
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```
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---
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## Prompt-Engineering für Brettspiele
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### Gute Prompts (funktionieren):
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- `"Professional product photography of [SPIELNAME] board game, box art, cinematic lighting, 4K resolution, clean background"`
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- `"A family playing [SPIELNAME] at a wooden table, warm candlelight, cozy atmosphere, lifestyle photography"`
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- `"Transform this board game cover into a [STIL] style poster, keep title and key art elements"`
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### Aspect-Ratio-Guide:
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| Zweck | Ratio |
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| Header-Bild (News) | 16:9 |
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| Thumbnail | 1:1 |
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| Instagram/Story | 9:16 |
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| Cover-Reproduktion | 2:3 (Standard-Brettspiel-Box) |
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| Breitformat-Banner | 21:9 |
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### Styles für Brettspiel-Bilder:
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- `product shot style` — clean, wie Amazon-Produktbilder
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- `lifestyle photography` — Menschen spielen am Tisch
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- `cinematic movie poster` — dramatisch, episch
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- `flat lay top-down` — von oben, alle Komponenten sichtbar
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- `watercolor illustration` — künstlerisch, handgemalt
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---
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## API-Key-Management
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Der API-Key wird als Secret via `bsn-secrets` gespeichert:
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```bash
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echo "nb_api_key..." | bsn-secrets set bsn/nanobanana-key
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```
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Abruf: `bsn-secrets get bsn/nanobanana-key`
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**Key beziehen:** https://nanobananaapi.ai/api-key
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---
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## Kosten
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- Credit-basiertes System — vor Nutzung Credits prüfen:
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```bash
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curl -s "https://api.nanobananaapi.ai/api/v1/common/account-credits" \
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-H "Authorization: Bearer $(bsn-secrets get bsn/nanobanana-key)"
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```
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## Pitfalls
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- **Task ist asynchron** — `POST` gibt sofort `taskId` zurück, Ergebnis erst nach 10-60s via GET
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- **NICHT blockierend warten** — Pollen mit 10s Intervallen, max 30 Versuche
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- **`imageUrls: []` für Text-to-Image** — Leeres Array, nicht weglassen
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- **Prompt-Länge max 20K** bei generate-2, weniger bei generate
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- **Aspect-Ratio als String** `"16:9"` — nicht als Float
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- **Status-Check:** Immer `r["data"]["status"]` prüfen — nicht `r["code"]`
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