Blog Documentation Contact

Setup LSPService So Codeface Can Use LSP Servers

July 26, 2022 • Sebastian Fichtner

LSPService is a free open source webservice that can provide Codeface finer granularity and information about actual architecture:

For example, it allows Codeface to show the symbols (like classes and functions) and dependencies in your code base.

Download and Run

Simply download LSPService and run it locally on your machine. Codeface will automatically detect LSPService and talk to it.

  LSPService for Apple Silicon
  LSPService for Intel Chips

On you first attempt to launch LSPService, you'll probably need to confirm that intention via the security settings:

LSPService will run in terminal, and as long as it's running there, the service is available. Check http://localhost:8080.

Add Language Support

If Xcode is installed, LSPService automatically finds Apple's LSP server (SourceKit-LSP), which supports Swift code. Using it with Swift code, you have to be aware of a few things:

The same LSP server from Apple should also work for Objective-c, C++ and C (see below).

Generally, you must provide locations of LSP servers for the languages you care about: LSPService creates an LSPServiceConfig.json file on launch if the file doesn't exist yet. If the file exists, LSPService loads server configurations from the file. The JSON structure is quite self-explanatory:

    "swift" : {
        "path" : "/usr/bin/xcrun",
        "arguments" : [
        "environment" : {
            "SOURCEKIT_LOGGING" : "0"

Just add language server entries to the file and then restart LSPService. Arguments and environment may of course remain empty.

In the future, LSPService will help more with installing and locating LSP servers for common languages. Learn more (or even contribute) on GitHub.

Copyright © 2022 Sebastian Fichtner