ebkalderon/tower-lsp

Health v2 · maintenance only

Adoption not part of the score

1359 stars · 81 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

tower-lsp is a Rust library implementing the Language Server Protocol (LSP) on top of the Tower service abstraction. It lets developers build custom language servers by implementing a LanguageServer trait, with an LspService wrapper and a Server that communicates over stdio or TCP.

Use cases

• build a language server for my programming language in Rust
• implement LSP support for a custom DSL
• add editor autocomplete and diagnostics via LSP
• write an async language server using Tower services
• serve LSP over stdio or TCP
• use LSP with a runtime other than tokio

When to choose

• you are writing a language server in Rust
• you want a composable, Tower-based LSP implementation with async support
• you need runtime flexibility (tokio or runtime-agnostic)
• you want a mature, widely downloaded LSP crate

When to avoid

• you are building language servers in another language
• you need a ready-made language server rather than a framework for building one
• you need strict synchronous processing of LSP messages

Facets

library · maturity stable

rpc middleware developer-tools developer-tools parsers apis rust cross-platform language-server-protocol lsp tower async rpc

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