Goldman Sachs RIA Custody API
The Goldman Sachs Custody Solutions (GSCS) RIA Custody platform exposes REST APIs that let advisor firms and third-party integration partners build applications on top of institutional-grade custody functionality for growth-focused independent advisors and RIAs. Organized around REST with predictable resource-oriented URLs, form-encoded requests and JSON-encoded responses, it covers account onboarding workflows, data files and ACH/wire transactions. Authentication uses the OAuth 2.0 standard, with a clientId and clientSecret issued by GSCS after approval via Lockbox or secure email. HTML-only docs, no public OpenAPI download.