# Kotlin/kotlin-lsp

Kotlin Language Server and plugin for Visual Studio Code

Repository: https://github.com/Kotlin/kotlin-lsp
Canonical: https://ross.abutalabs.com/products/kotlin-lsp
Language: Kotlin
License: Apache-2.0
License Family: permissive
Last push: 2026-08-26T16:09:34+00:00

## Health v2 (maintenance only)
Score: 81/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 83, longevity 35
- inputs: {"age_days": 492, "days_push": 7, "days_rel": 38, "gap_med": 38, "n_releases_24m": 10}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3487, forks 88 (observed 2026-08-28T04:08:07.099467+00:00)

## What it is
The official Kotlin Language Server implementing the Language Server Protocol, built on IntelliJ IDEA and the IntelliJ Kotlin plugin. It ships as a standalone CLI server and as a 'Kotlin by JetBrains' extension for Visual Studio Code.

## Use cases
- get Kotlin code completion in VS Code
- run a Kotlin language server for my editor
- see Kotlin diagnostics and quick fixes outside IntelliJ
- add Kotlin support to Neovim or other LSP clients
- edit Kotlin projects in Visual Studio Code

## When to choose
- you write Kotlin in VS Code or another LSP-capable editor and want IntelliJ-powered analysis
- you need up-to-date Kotlin language version support outside JetBrains IDEs

## When to avoid
- you already use IntelliJ IDEA or Android Studio, which have deeper Kotlin support
- you need a fully stable, feature-complete LSP implementation, as the project is in Alpha

## Facets
- artifact type: plugin
- maturity: experimental
- function: editor, developer-tools, documentation
- domain: developer-tools, programming-languages, text-editors
- platform: editor-plugin, cross-platform, cli
- tags: language-server-protocol, kotlin, vscode-extension, intellij-based, jetbrains

## Member repositories
- Kotlin/kotlin-lsp (main) score 81

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:07.099467+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:36:06.791894+00:00, confidence not recorded.
  - readme: https://github.com/Kotlin/kotlin-lsp (fetched 2026-08-28T04:08:07.099467+00:00, sha 4cf607bf4ac2)
- Data as of 2026-08-30T08:39:29.467469+00:00.