diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..bccb272
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,62 @@
+// Declaration file to have types in Typescript code that uses sqlite-parser
+declare module 'sqlite-parser' {
+    
+    function sqliteParser(expression: string): sqliteParser.ParsedObject
+
+    namespace sqliteParser {
+        // some sqlite-parser types for literal types
+        type dataType = 'text' | 'decimal' | 'boolean' | 'date' | 'datetime' | 'null';
+
+        interface BaseNode {
+            type: string,
+        }
+
+        interface IdentifierNode extends BaseNode {
+            type: 'identifier'
+            name: string
+        }
+
+        interface LiteralNode extends BaseNode {
+            type: 'literal'
+            value: string
+            variant: dataType
+        }
+
+        interface FunctionNode extends BaseNode {
+            type: 'function'
+            name: IdentifierNode
+            args: {expression: BaseNode[]}
+        }
+
+        interface ExpressionNode extends BaseNode {
+            type: 'expression'
+            format: 'binary'|'unary'
+        }
+
+        interface BinaryExpressionNode extends ExpressionNode {
+            format: 'binary'
+            operation: string
+            left: BaseNode
+            right: BaseNode
+        }
+
+        interface UnaryExpressionNode extends ExpressionNode {
+            format: 'unary'
+            operator: string
+            expression: BaseNode
+        }
+
+        type ParsedObject = {
+            type: "statement",
+            variant: "list",
+            statement: [
+                {
+                    type: "statement",
+                    variant: "select",
+                    result: BaseNode[]
+                }
+            ]
+        };  
+    }
+    export = sqliteParser
+}