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Full detail: Where this data comes from
Marcus by Goldman Sachs is the U.S. consumer banking brand of The Goldman Sachs Group, launched in 2016 to offer no-fee high-yield Online Savings Accounts and Certificates of Deposit (CDs) directly to retail customers online. Deposits are held at Goldman Sachs Bank USA, a New York State-chartered bank and member of the Federal Reserve System, insured by the FDIC.
APIs.json: https://raw.githubusercontent.com/api-evangelist/marcus/refs/heads/main/apis.yml
Marcus by Goldman Sachs operates no public first-party consumer developer API and runs no self-serve developer portal for its retail banking products. The separate Goldman Sachs Developer platform (developer.gs.com) serves institutional Transaction Banking and Marquee offerings — not Marcus consumer banking. That platform was not reachable from a non-browser client during this review (HTTP 000, bot-blocked).
Consumer-permissioned Marcus account data (balances, transactions, account/holder details) is reachable only through third-party open-finance aggregators — not a documented Marcus API:
- Plaid (confirmed): supports Assets, Auth, Balance, Transactions, and Investments for Marcus, across Depository, Loan, Investment, and Other account types (US only).
- Flinks and MX are also referenced as aggregator paths to Marcus data.
As a U.S. bank, Goldman Sachs Bank USA is subject to the emerging CFPB Section 1033 personal financial data rights framework, but no first-party FDX-conformant Marcus developer interface is publicly documented as of this record. This is the honest, non-fabricated reality for most U.S. consumer banks: data access via aggregators only.
- Financial Services
- Banking
- United States
- Consumer Banking
- Neobank
- Digital Banking
- Savings
- Open Finance
- Data Aggregation
- Created: 2026-07-23
- Modified: 2026-07-23
Marcus does not publish a first-party consumer developer API. Consumer-permissioned account data is available only through third-party open-finance aggregators. This is an honest data-access pointer, not a Marcus-operated API.
- Data Aggregation
- Open Finance
- Consumer Data
FN: Kin Lane Email: kin@apievangelist.com