Pricing

Simple, honest pricing

Start free. Pay only when you need more. No subscriptions, no lock-in.

Free

always free

✓ 10 unlocks per day
✓ No signup required
✓ Files up to 50MB
✓ Files deleted in 1 hour
✓ All encryption types

Start Unlocking

Pay per use

$0.05

per unlock · USDC on Base

✓ Unlimited unlocks
✓ No subscription
✓ Pay only what you use
✓ Works for AI agents
✓ Instant via x402 protocol

Unlock Now →

How we compare

Feature	UnlockPDF.dev	ilovepdf.com	SmallPDF
Free tier	10/day	Limited	Limited
No signup	✓	✓	✗
Pay per use	✓ $0.05	✗	✗
AI agent ready	✓	✗	✗
x402 protocol	✓	✗	✗
Files deleted in 1hr	✓	✓	✓

Frequently asked

What is USDC?

USDC is a stablecoin pegged 1:1 to the US Dollar. $0.05 USDC = exactly $0.05 USD. You need a crypto wallet like MetaMask or Coinbase Wallet with USDC on Base network.

What is Base network?

Base is a fast, cheap Ethereum Layer 2 built by Coinbase. Transaction fees are under $0.001, making $0.05 micropayments practical.

How does x402 work?

When your free limit is reached, our server returns a 402 response with payment details. You send $0.05 USDC, then retry the request with proof of payment. AI agents do this automatically.

Do you store my files?

No. Files are processed in memory and deleted within 1 hour. We never read or share your documents. See our Privacy Policy for details.

Can AI agents pay automatically?

Yes — that's our key feature. AI agents that support x402 (like those with a funded wallet) can pay and unlock PDFs fully autonomously without human intervention.

Is there a monthly plan?

Not currently. We believe pay-per-use is fairer — you only pay for what you actually use. No subscriptions, no wasted money.