diff --git a/core/Cargo.toml b/core/Cargo.toml
index d82e4af..71027d3 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -12,6 +12,7 @@ name = "methodray"
 path = "src/main.rs"
 required-features = ["cli"]
 
+# [DEPRECATED] methodray-lsp will be removed in a future version.
 [[bin]]
 name = "methodray-lsp"
 path = "src/lsp/main.rs"
diff --git a/core/src/lsp/main.rs b/core/src/lsp/main.rs
index 7c640ef..e1abad2 100644
--- a/core/src/lsp/main.rs
+++ b/core/src/lsp/main.rs
@@ -1,8 +1,11 @@
 //! LSP server binary entry point
+//!
+//! [DEPRECATED] methodray-lsp will be removed in a future version.
 
 use methodray_core::lsp;
 
 #[tokio::main]
 async fn main() {
+    eprintln!("WARNING: 'methodray-lsp' is deprecated and will be removed in a future version.");
     lsp::run_server().await;
 }