# Projects
All Projects notes →gRPC API Reference
Reference for the OrderService gRPC contract between gateway-api and order-api, covering RPCs, error codes, and trace propagation.
ShipSolid Signal Forge API
Jul 10, 2026
REST API Reference
Reference for gateway-api's REST endpoints covering projects, orders, notifications, and OTel trace context propagation.
ShipSolid Signal Forge API
Jul 10, 2026