json-lsp

json-lsp

JSON and JSONC language server (vscode-json-languageserver) for Claude Code, providing code intelligence, diagnostics, and completion.

Supported Extensions

.json, .jsonc

Installation

Via bun (recommended)

bun add -g vscode-json-languageserver

Via npm

npm install -g vscode-json-languageserver

Ensure vscode-json-languageserver is on your PATH (verify with command -v vscode-json-languageserver) so Claude Code can launch it.

More Information

• vscode-json-languageserver on npm
• VS Code JSON Language Features