diff --git a/lib/src/api/CombinatorsMlt.gf b/lib/src/api/CombinatorsMlt.gf
new file mode 100644
index 000000000..422dd6e1f
--- /dev/null
+++ b/lib/src/api/CombinatorsMlt.gf
@@ -0,0 +1,6 @@
+--# -path=.:alltenses:prelude
+
+resource CombinatorsMlt = Combinators with 
+  (Cat = CatMlt),
+  (Structural = StructuralMlt),
+  (Constructors = ConstructorsMlt) ;
diff --git a/lib/src/api/ConstructorsMlt.gf b/lib/src/api/ConstructorsMlt.gf
new file mode 100644
index 000000000..2526325b3
--- /dev/null
+++ b/lib/src/api/ConstructorsMlt.gf
@@ -0,0 +1,3 @@
+--# -path=.:alltenses:prelude
+
+resource ConstructorsMlt = Constructors with (Grammar = GrammarMlt) ;
diff --git a/lib/src/api/SymbolicMlt.gf b/lib/src/api/SymbolicMlt.gf
new file mode 100644
index 000000000..1a40e4763
--- /dev/null
+++ b/lib/src/api/SymbolicMlt.gf
@@ -0,0 +1,5 @@
+--# -path=.:present:mathematical:prelude
+
+resource SymbolicMlt = Symbolic with 
+  (Symbol = SymbolMlt),
+  (Grammar = GrammarMlt) ;
diff --git a/lib/src/api/SyntaxMlt.gf b/lib/src/api/SyntaxMlt.gf
new file mode 100644
index 000000000..42e1c936c
--- /dev/null
+++ b/lib/src/api/SyntaxMlt.gf
@@ -0,0 +1,5 @@
+--# -path=.:alltenses:prelude
+
+instance SyntaxMlt of Syntax = 
+  ConstructorsMlt, CatMlt, StructuralMlt, CombinatorsMlt ;
+
diff --git a/lib/src/api/TryMlt.gf b/lib/src/api/TryMlt.gf
new file mode 100644
index 000000000..bf304242c
--- /dev/null
+++ b/lib/src/api/TryMlt.gf
@@ -0,0 +1,6 @@
+--# -path=.:alltenses:prelude
+
+resource TryMlt = SyntaxMlt, LexiconMlt, ParadigmsMlt ** 
+  open (P = ParadigmsMlt) in {
+
+}