diff --git a/types/lua-livr/LIVR.d.tl b/types/lua-livr/LIVR.d.tl
new file mode 100644
index 0000000..babeac3
--- /dev/null
+++ b/types/lua-livr/LIVR.d.tl
@@ -0,0 +1,38 @@
+--
+-- https://luarocks.org/modules/fperrad/lua-livr
+--
+
+local record LIVR
+   type Data = {string:any}
+   type Error = string|table
+   type ValidatorFn = function(value: any, all: Data): any, Error
+   type Builder = function(builders: {string:Builder}, ...: any): ValidatorFn
+   type Rule = string|table
+
+   record Alias
+      name: string
+      rules: Rule
+      error: string
+   end
+
+   record Validator
+      prepare: function(self: Validator): Validator
+      validate: function(self: Validator, data: Data): Data, string|{string:Error}
+      register_rules: function(self: Validator, rules: {string:Builder}): Validator
+      register_aliased_rule: function(self: Validator, alias: Alias): Validator
+      get_rules: function(self: Validator): {string:Builder}
+   end
+
+   new: function(rules: {string:Rule}, is_auto_trim: boolean): Validator
+   register_default_rules: function(rules: {string:Builder})
+   register_aliased_default_rule: function(alias: Alias)
+
+   default_rules: {string:Builder}
+   default_auto_trim: boolean
+   _NAME: string
+   _VERSION: string
+   _DESCRIPTION: string
+   _COPYRIGHT: string
+end
+
+return LIVR
diff --git a/types/lua-livr/LIVR/helpers.d.tl b/types/lua-livr/LIVR/helpers.d.tl
new file mode 100644
index 0000000..65e615f
--- /dev/null
+++ b/types/lua-livr/LIVR/helpers.d.tl
@@ -0,0 +1,9 @@
+
+local record helpers
+   primitive_type: {string:boolean}
+   string_number_type: {string:boolean}
+   number_boolean_type: {string:boolean}
+   expected_type: function(rule: string, n: integer, tname: string, value: any)
+end
+
+return helpers