n8n: Generate Sora 2 videos via Kai API

Step-by-step

1. Add an HTTP Request node in n8n.
2. Copy the cURL request from the Kai API Sora 2 image-to-video documentation.
3. Click Import cURL in the n8n node and paste the command to auto-configure the fields.
4. Set Authentication to Generic Credential Type and select Bearer Auth to securely store your Kai API key.
5. Open the Body expression and replace the hard-coded prompt value with the dynamic output from your AI agent node.
6. Apply a .replace() function to the prompt expression to remove double quotes and line breaks (\n) to prevent JSON formatting errors.
7. Add an 'image_urls' field to the JSON body and drag in the image URL variable from your data source.
8. Click Execute Step to test the video generation.

Options

• Paste the API key directly into the header (not recommended for reusability)
• Use Cloudinary to host images for publicly accessible URLs

Watch out for

• Image URLs must be publicly accessible without passwords or authorization headers.
• Double quotes or line breaks within the dynamic prompt text will break the JSON payload and cause the request to fail.
• Ensure you copy the 'Sora 2 image-to-video' cURL specifically, rather than the 'text-to-video' version if using an image input.

Tips

• Use the Bearer Auth credential type so you don't have to manually paste your API key into every new HTTP node.
• Wrap dynamic values in double quotes within the JSON expression to maintain valid syntax.
• Use a replace function to clean up text 'blobs' to ensure the HTTP request doesn't fail due to formatting.

Highlights

“Then I just clicked copy URL and pasted that into my Google sheet like so. Super simple.”