Question 1

What is the Clipboard to Supabase MCP Helper?

Accepted Answer

It's a local agent that automatically uploads images copied to your clipboard to Supabase Storage and replaces the clipboard content with the public URL of the uploaded image.

Question 2

What are the prerequisites for using the helper?

Accepted Answer

You need Node.js 18+, a Supabase account with Storage enabled, and platform-specific dependencies like `pngpaste` on macOS.

Question 3

How do I install the helper?

Accepted Answer

Clone the repository, install dependencies using `npm install`, configure your Supabase credentials in a `.env` file, build the project with `npm run build`, and install it as a system service using the appropriate command for your OS.

Question 4

Does it work on all operating systems?

Accepted Answer

Yes, it supports macOS, Windows, and Linux.

Question 5

What is MCP and how does the helper use it?

Accepted Answer

MCP stands for Model Context Protocol. The helper exposes its functionality as an MCP endpoint, allowing AI Agents to seamlessly interact with the clipboard and upload images for processing.

Question 6

How does the helper detect new images?

Accepted Answer

It polls the clipboard every 300ms and computes a SHA-1 hash of the image data. Only new or changed images are processed based on hash comparison.

Question 7

Can I configure the helper to run automatically at system startup?

Accepted Answer

Yes, you can configure it to run at startup using platform-specific methods.

Question 8

How often does the helper clean up old files?

Accepted Answer

It periodically removes images older than the configured retention period (default: 30 days).

Question 9

Can I change the port used for HTTP mode?

Accepted Answer

Yes, you can configure the port by setting the `MCP_PORT` environment variable.

Question 10

What kind of security considerations should I keep in mind?

Accepted Answer

Ensure your Supabase service role key is kept secure, and restrict access to the MCP endpoint if necessary.

Clipboard Image Uploader

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