What the AI does with
your Discover activity.
Connecting Discover isn't the finish line — it's the input. Here is what SuperBooks does with each transaction, and the one step that stays yours.
Every Discover transaction syncs into SuperBooks through Plaid — read-only. We can see the money move; we can never move it.
Upload a receipt, then attach it to the Discover transaction it belongs to. It stays linked from then on.
Each Discover expense is sorted into a category you control, and the expenses-by-category report adds them up for your accountant.
Profit and loss, burn rate and runway are computed from your Discover feed each time you open them, so they are never a month behind.
Annual fees, interest, and statement credits on your Discover card arrive with the rest of the feed and are categorized like any other charge — so nothing on the statement slips past your books.
Every currency,
kept as it happened.
Discover posts in USD. Invoice a client in EUR or pay a vendor in GBP: each account, transaction and invoice keeps the currency it happened in, and your invoice totals convert to USD at the day's published rate.
One read-only link to set up.
Up to two years of history.
SuperBooks asks Plaid for up to 24 months of Discover transactions and categorizes each one it is confident about.
We can't move your money.
That's by design.
Plaid handles authentication. We hold a read-only OAuth token and nothing else — your Discover credentials never touch our servers.
Full security disclosureWhat people ask before
they connect Discover.
Straight answers, each one true of SuperBooks as it ships today rather than as it is planned.
Does Discover work with Plaid?
Yes. Plaid lists Discover as "Discover", institution ID ins_33. In the snapshot of Plaid's institution list SuperBooks took on July 12, 2026, it is one of 9,761 active US institutions.
Can I connect Discover to QuickBooks or other accounting software?
SuperBooks has no QuickBooks connection: it is bookkeeping software itself, and it connects to Discover through Plaid. To take those transactions into another tool, export them as a CSV: one file of the transactions you select, with a column naming the bank account each one came from.
Do I need a Discover API or developer key?
No. SuperBooks reaches Discover through Plaid, read-only, and you connect with the Discover login you already use, so there are no developer credentials to request from the bank. Your own data is then readable over the SuperBooks REST API, its TypeScript and Python SDKs, and its MCP server — on every plan.
How do I link my Discover business and personal accounts?
Sign in to Discover through Plaid with the login that holds those accounts; SuperBooks then lists every account Plaid returns for it, and you choose which ones sync. All of them count as one bank connection on your plan. SuperBooks keeps one login per Plaid institution for each company — for Discover, Plaid's "Discover" record — so connecting it again replaces that login instead of adding a second one. If your personal and business accounts sit under two separate logins there, only one of them can be connected at a time.
Does SuperBooks store my Discover login?
No. You sign in through Plaid — in Plaid's own window, or on Discover's own site if Discover uses OAuth — so your password goes to Plaid or Discover, never to SuperBooks. The only credential SuperBooks holds is a read-only token for transactions and balances — it can never move money — and disconnecting Discover revokes it.
How much Discover history comes across?
SuperBooks asks Plaid for up to 730 days — roughly two years — the first time you connect. How much of that actually arrives depends on what Discover makes available through Plaid.
Does SuperBooks categorize Discover transactions automatically?
Yes, when it is confident. SuperBooks applies a category above a 0.7 confidence score; below that it writes nothing rather than guessing, so the Discover transaction stays uncategorized in your list until you set it.
Can I export my Discover transactions?
Yes — your transactions export as a CSV on every plan and from every role, so you can hand Discover activity to an accountant or load it into another tool whenever you want.
What does connecting Discover cost?
Nothing to start: the free plan includes 1 bank connection and takes no credit card. Starter raises that to 3 connections and Pro to 10.
