n8n-nodes-gpt-image-uploadthing

Generate images with OpenAI and upload them to UploadThing directly from n8n.

This community node adds a single node: OpenAI → UploadThing, which:

• Generates an image using OpenAI’s Images API (gpt-image-1)
• Uploads the resulting image to UploadThing using UTApi

References:

• UploadThing server API (UTApi, UTFile): https://docs.uploadthing.com/api-reference/server
• OpenAI JavaScript SDK: https://www.npmjs.com/package/openai

Prerequisites

• Node.js ≥ 20
• n8n installed and running
• OpenAI API key
• UploadThing token

Installation

Install as a community node in n8n or via npm in your n8n extensions setup:

npm install n8n-nodes-gpt-image-uploadthing

Restart n8n so it loads the package.

Credentials

Create two credentials in n8n:

1. OpenAI API

• API Key: your OpenAI key

2. UploadThing API

• Token: your UploadThing token

These correspond to the credential types exported by the package: OpenAiApi and UploadThingApi.

Usage

Add the node “OpenAI → UploadThing” to your workflow and configure:

• Prompt: Text prompt to generate the image.
• Size: One of 1024×1024, 1536×1024, 1024×1536.
• File Name: Output file name (e.g. generated.png).
• ACL: public-read or private.
• Content Disposition: inline or attachment.

Outputs (json):

• fileKey: UploadThing file key
• url: Public URL (respecting ACL)
• name: Stored file name
• sizeBytes: File size in bytes
• plus the input fields for reference

Local development

npm i
npm run build

Link or install the built dist into your n8n environment. Lint and format:

npm run lint
npm run format

Security notes

• Keep your OpenAI API key and UploadThing token secret in n8n credentials.
• If you set ACL to private, use signed URLs to access files as needed via UploadThing APIs.

License

MIT