Project Server Resources
OData API
Source: ProjectData - Project OData service reference
Project Server OData API Endpoints
Project Server OData API Postman Collection
REST API
Source: JavaScript library and REST reference for Project Server 2013
Project Server REST API Endpoints
Project Server REST API Postman Collection
WSDL API
Source: Project PSI reference overview
Project Server WSDL API Endpoints
Project Server WSDL API Definitions