AdvicePay API
The AdvicePay REST API (v1.0.1) exposes the fee-for-service billing platform to integrators: admins, advisors, agreements, clients, custom attributes, deliverables, engagements, invoices, notifications, offices, subscriptions and transfers. It is organized around resource-oriented URLs, accepts and returns JSON, and uses standard HTTP verbs and status codes. Authentication is OAuth 2.0 bearer; a demo environment at demo.advicepay.com mirrors production without touching live data or banking networks.