Pixwith Nano Banana 2 — AI Image Generation

Generate and edit images via the Pixwith API using the Nano Banana 2 model. Supports text-to-image and image-to-image with up to 4 reference images, multi-resolution output (1K / 2K / 4K), and flexible aspect ratios.

⚠️ CRITICAL — Do NOT Alter API Response Values

ALL values returned by the API (task_id, result_urls, image_url, upload_url, fields) are opaque tokens. Use them EXACTLY as returned — do NOT add, remove, or change even a single character. Store each value in a shell variable and reuse it directly. A single wrong character in task_id or result_urls will cause errors or broken links.

Setup

This skill requires a PIXWITH_API_KEY environment variable.

If the variable is not set, guide the user through these steps:

1. Go to https://pixwith.ai/api and sign up / log in.
2. Click "Add" to create a new API key and copy it.
3. Add the key to ~/.openclaw/openclaw.json: