1. Buy a pack or plan above
Normal Stripe checkout — card in, receipt out. No signup form, no password.
2. Copy your API key from the confirmation page
Right after payment you land on a page showing your key — it starts with sk402_ and is shown once. Save it in a password manager, like any other API key. The key is your account: whoever holds it can spend the credits. If you missed it, write to us via the contact page with your purchase email.
3. Order reads with the key
Send the key in a header with every request. Any language, any tool — here's the whole thing with curl:
curl "https://skim402.com/api/t/read?url=https://example.com" \
-H "Authorization: Bearer sk402_YOUR_KEY"
You get the page back as clean markdown. A standard read is 1 credit; pages that need a full browser render cost 2–3. Batch and extract endpoints are in the docs.
4. Check your balance anytime
Paste your key on the account page to see credits remaining and any pending overage. Invoices, receipts, and cancelling are handled in the Stripe billing portal, one click from the same page.
Handing the key to an AI agent? That's the point.
Card pay isn't just for humans. Buy with the company card, give the key to your agent, and every read it makes lands on one normal Stripe invoice — conventional accounting, no crypto wallet anywhere in the loop. (Agents that
do carry wallets can skip the key entirely and
pay per call — and that rail is card-friendly too: you fund the wallet by buying USDC with a normal card, so it shows up on your statement like any other expense.)