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Buy tokens

One currency for everything: unlock papers from the library, or generate new ones with AI. Tokens never expire.

New accounts start with 2,000 free tokens

Developer mode

Stripe keys aren't configured, so checkout runs in simulation mode โ€” you'll get a confirmation screen instead of the Stripe page, and tokens are credited without a real payment. Set STRIPE_SECRET_KEY to switch to real test checkout.

Starter

Try it out on a single assignment.

$9.00 one-off

5,000

tokens

  • ~3 standard AI essays
  • Unlock library papers at 1,200 tokens each
  • $1.80 per 1,000 tokens
  • Never expires
Sign up to buy
Most popular

Semester

The one most students pick.

$29.00 one-off

23,000

tokens

includes 3,000 bonus

  • ~17 standard AI essays
  • Unlock library papers at 1,200 tokens each
  • $1.26 per 1,000 tokens
  • Never expires
Sign up to buy

Scholar

For dissertation season.

$79.00 one-off

75,000

tokens

includes 15,000 bonus

  • ~55 standard AI essays
  • Unlock library papers at 1,200 tokens each
  • $1.05 per 1,000 tokens
  • Never expires
Sign up to buy

Department

Shared research budget.

$249.00 one-off

260,000

tokens

includes 60,000 bonus

  • ~193 standard AI essays
  • Unlock library papers at 1,200 tokens each
  • $0.96 per 1,000 tokens
  • Never expires
Sign up to buy

What tokens buy

How does the pricing work?
Tokens are our credit unit. Unlocking a library paper costs a flat 1,200 tokens. AI generation is priced by length โ€” we hold an estimate up front, then charge what was actually used and refund the difference.
What happens if a generation fails?
You're refunded in full, automatically. If Claude can't complete your request for any reason, every held token goes straight back to your wallet.
Do tokens expire?
No. Tokens stay in your wallet indefinitely, and unlocked papers remain accessible forever.
Can I get a refund?
Unused token purchases can be refunded within 14 days. Tokens already spent on unlocks or completed generations aren't refundable, since the content has been delivered.