lspeasyLanguage Server Protocol, the easy way

TypeScript SDK for building LSP clients and servers with a typed, ergonomic API.

Core Protocol

JSON-RPC transport, LSP protocol types, and middleware — shared between client and server.

@lspeasy/server provides a server framework with lifecycle management and typed handler registration.

@lspeasy/client exposes a typed textDocument.* / workspace.* API built on the core protocol layer.

Three focused packages let you install only what you need.