Pay per run, only when it works.
No subscription and no seats. A run costs what it used plus the creator’s price, and Claude shows the most it can cost before it starts.
Usage, plus the creator’s price
Before a run starts, Modpack sets aside the most it can cost, and Claude shows it. You pay what it used; the rest goes back at once.
What real runs cost
- Computing
- $0.005
- per vCPU-minute
- Transfer
- $0.20
- per GB in or out
- Data calls
- cost + 10%
- search and SEO data
- Run fee
- $0.01
- per run
- Creator’s price
- $0 – $5
- per run that worked
- Storage
- $0.05
- GB-month, past 5 GB
Each pack’s typical run as listed on Sep 27, 2026. Usage and the creator’s price are shown separately when the pack publishes them. A bigger job costs more, and your per-run limit caps any single run.
What would a month cost you?
Pick a pack and how often you’d run it.
No listed packs have a price yet. Check back soon.
You decide the most you can spend
A run that would cost more doesn’t start, and Claude tells you why.
New runs wait until the 1st, or until you raise it. Running ones finish.
The run waits up to 24 hours and starts by itself when your top-up lands.
Offered after your first purchase: add $10 when you’re below $2, up to a monthly cap you pick.
You don’t pay for runs that don’t work
- It workedUsage plus the creator’s price, exactly as on the receipt.
- It didn’t workNothing: crashes, time-outs, results that fail the pack’s checks, and problems on our side. The reserved amount goes back at once.
- You stopped itWhat it used until you stopped it. Never the creator’s price.
- It’s waiting for fundsNothing until it starts. If you don’t top up within 24 hours, it’s cancelled.
- You think a charge is wrongPress “Report a problem with this charge” on the receipt. If the run didn’t do what it said, we refund it.
A prepaid balance you top up when you want
Cards only: Apple Pay, Google Pay, Link or a card. Sales tax is added at checkout where it applies.
No monthly fee. When you close your account, what’s left is refunded to your card.
The $5 starter credit and invite rewards. No cash value; each shows its expiry date.
Questions
Does my Claude plan cost extra?
Modpack is separate from your Claude plan. It works on Claude Free, which allows one custom connector, and on every paid plan.
What if a creator changes their price?
An increase applies 14 days after it’s announced, and Claude shows the new price before your next run. A decrease applies right away.
Can I buy for my business?
Yes. Tick “Buying for a business” when you top up to put your company name and tax ID on receipts.
Who gets the creator’s price?
The creator keeps 80% (90% for founding creators). Modpack keeps the rest to cover payments, payouts and hosting.
Start with $5 on us.
Add Modpack to Claude once, ask in your own words, and get the result right in the chat.