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How to Sell with Chainfiles

How to Sell with Chainfiles

A quick, no-jargon guide for creators to start selling digital files and get paid instantly in USDC.

How to Sell with Chainfiles

Welcome to Chainfiles — the simplest way to sell digital files and get paid instantly. No storefronts, no waiting for payouts, no setup headaches. Just upload your file, share your link, and get paid in USDC (digital dollars) directly to your wallet.

1. Set Up Your Coinbase Wallet

To receive payments, you’ll need a wallet. The Coinbase Wallet app is the easiest option - it takes minutes to set up.

When you install the app:

  1. Open the app and follow the setup prompts.
  2. Create or import a wallet.
  3. You’re ready to receive payments when someone buys your file.

Tip: You don’t need a full exchange account—just the wallet app is enough.

2. Copy Your Wallet Address

Your wallet address is where payments are sent.

  1. In the Coinbase Wallet app, tap Receive.
  2. Tap Base (or ETH, both share the same address).
  3. Tap Copy next to your wallet address — it starts with 0x....

Keep this handy — you’ll paste it into Chainfiles when you upload your product.

3. Upload Your File

  1. Go to the Upload Page.
  2. Add a title and short description of your product.
  3. Set your price in USD (buyers will pay in USDC).
  4. Paste your wallet address from Step 2.
  5. Upload your file (currently supports PDF, image, or text, up to 10 MB).
  6. Accept the terms and click Submit.

Your product page will be created instantly.

4. Share Your Link Anywhere

After uploading, you’ll get a unique product link.

Share it on:

  • TikTok bio or video captions
  • Instagram stories or Linktree
  • X (Twitter) posts
  • Newsletters or personal websites

Anyone with a wallet can buy directly from your link.

5. Get Paid Instantly

When a buyer completes payment:

  • They pay in USDC — a “digital dollar” always equal to USD.
  • The payment goes directly to your wallet — no waiting or payout delays.
  • The file automatically unlocks for download after payment.

No waiting for payouts. No middlemen. No chargebacks.

Content Guidelines

To keep things safe and fair for everyone:

  • Upload only original or properly licensed content.
  • No adult, copyrighted, or illegal material.
  • Maximum file size 10 MB per upload.

All uploads are subject to review.

Need Help?

Contact Support if you’re stuck.

✹ That’s it — you’re ready to sell. Upload your first file, share your link, and get paid within seconds.

Buyers