diff --git a/clang-tools-extra/clangd/ClangdLSPServer.cpp b/clang-tools-extra/clangd/ClangdLSPServer.cpp
--- a/clang-tools-extra/clangd/ClangdLSPServer.cpp
+++ b/clang-tools-extra/clangd/ClangdLSPServer.cpp
@@ -571,7 +571,6 @@
       {"referencesProvider", true},
       {"astProvider", true}, // clangd extension
       {"typeHierarchyProvider", true},
-      {"clangdInlayHintsProvider", true},
       {"memoryUsageProvider", true}, // clangd extension
       {"compilationDatabase",        // clangd extension
        llvm::json::Object{{"automaticReload", true}}},
@@ -608,6 +607,9 @@
   if (Opts.FoldingRanges)
     ServerCaps["foldingRangeProvider"] = true;
 
+  if (Opts.InlayHints)
+    ServerCaps["clangdInlayHintsProvider"] = true;
+
   std::vector<llvm::StringRef> Commands;
   for (llvm::StringRef Command : Handlers.CommandHandlers.keys())
     Commands.push_back(Command);
@@ -1477,7 +1479,8 @@
   Bind.method("textDocument/documentLink", this, &ClangdLSPServer::onDocumentLink);
   Bind.method("textDocument/semanticTokens/full", this, &ClangdLSPServer::onSemanticTokens);
   Bind.method("textDocument/semanticTokens/full/delta", this, &ClangdLSPServer::onSemanticTokensDelta);
-  Bind.method("clangd/inlayHints", this, &ClangdLSPServer::onInlayHints);
+  if (Opts.InlayHints)
+    Bind.method("clangd/inlayHints", this, &ClangdLSPServer::onInlayHints);
   Bind.method("$/memoryUsage", this, &ClangdLSPServer::onMemoryUsage);
   if (Opts.FoldingRanges)
     Bind.method("textDocument/foldingRange", this, &ClangdLSPServer::onFoldingRange);
diff --git a/clang-tools-extra/clangd/ClangdServer.h b/clang-tools-extra/clangd/ClangdServer.h
--- a/clang-tools-extra/clangd/ClangdServer.h
+++ b/clang-tools-extra/clangd/ClangdServer.h
@@ -163,6 +163,9 @@
     /// Enable preview of FoldingRanges feature.
     bool FoldingRanges = false;
 
+    /// Enable preview of InlayHints feature.
+    bool InlayHints = false;
+
     FeatureModuleSet *FeatureModules = nullptr;
 
     explicit operator TUScheduler::Options() const;
diff --git a/clang-tools-extra/clangd/tool/ClangdMain.cpp b/clang-tools-extra/clangd/tool/ClangdMain.cpp
--- a/clang-tools-extra/clangd/tool/ClangdMain.cpp
+++ b/clang-tools-extra/clangd/tool/ClangdMain.cpp
@@ -307,6 +307,10 @@
     Hidden,
 };
 
+opt<bool> InlayHints{"inlay-hints", cat(Features),
+                     desc("Enable preview of InlayHints feature"), init(false),
+                     Hidden};
+
 opt<unsigned> WorkerThreadsCount{
     "j",
     cat(Misc),
@@ -815,6 +819,7 @@
   }
   Opts.AsyncThreadsCount = WorkerThreadsCount;
   Opts.FoldingRanges = FoldingRanges;
+  Opts.InlayHints = InlayHints;
   Opts.MemoryCleanup = getMemoryCleanupFunction();
 
   Opts.CodeComplete.IncludeIneligibleResults = IncludeIneligibleResults;