FDC3 App Directory API
The FDC3 App Directory (AppD) is a REST API standard for registering and discovering financial desktop applications. Desktop Agents query App Directories to resolve application definitions when launching apps or resolving intents. The v2 endpoints are the current standard, supporting retrieval of all app definitions and lookup by appId. Authentication is supported via HTTP Authorization Bearer JWT tokens. Implementations are provided by vendors and financial institutions; FINOS publishes the specification and JSON schema.