diff --git a/lua/kcl_lib-0.12.3-1.rockspec b/lua/kcl_lib-0.12.3-1.rockspec
index 1f08a068..3bf032da 100644
--- a/lua/kcl_lib-0.12.3-1.rockspec
+++ b/lua/kcl_lib-0.12.3-1.rockspec
@@ -24,6 +24,7 @@ dependencies = {
 }
 test_dependencies = {
   "busted >= 2.2",
+  "penlight >= 1.15",
 }
 test = {
   type = "busted",
diff --git a/lua/kcl_lib/raw_api.lua b/lua/kcl_lib/raw_api.lua
index 1703958e..0fe73bf3 100644
--- a/lua/kcl_lib/raw_api.lua
+++ b/lua/kcl_lib/raw_api.lua
@@ -44,10 +44,79 @@ local function add_method(name, arg_name, return_name)
   end
 end
 
+RawAPI.ping = add_method("KclService.Ping", "PingArgs", "PingResult")
+
+RawAPI.get_version =
+  add_method("KclService.GetVersion", "GetVersionArgs", "GetVersionResult")
+
+RawAPI.parse_program = add_method(
+  "KclService.ParseProgram",
+  "ParseProgramArgs",
+  "ParseProgramResult"
+)
+
+RawAPI.parse_file =
+  add_method("KclService.ParseFile", "ParseFileArgs", "ParseFileResult")
+
+RawAPI.load_package =
+  add_method("KclService.LoadPackage", "LoadPackageArgs", "LoadPackageResult")
+
+RawAPI.list_options =
+  add_method("KclService.ListOptions", "ParseProgramArgs", "ListOptionsResult")
+
+RawAPI.list_variables = add_method(
+  "KclService.ListVariables",
+  "ListVariablesArgs",
+  "ListVariablesResult"
+)
+
 RawAPI.exec_program =
   add_method("KclService.ExecProgram", "ExecProgramArgs", "ExecProgramResult")
 
+RawAPI.format_code =
+  add_method("KclService.FormatCode", "FormatCodeArgs", "FormatCodeResult")
+
 RawAPI.format_path =
   add_method("KclService.FormatPath", "FormatPathArgs", "FormatPathResult")
 
+RawAPI.lint_path =
+  add_method("KclService.LintPath", "LintPathArgs", "LintPathResult")
+
+RawAPI.override_file = add_method(
+  "KclService.OverrideFile",
+  "OverrideFileArgs",
+  "OverrideFileResult"
+)
+
+RawAPI.get_schema_type_mapping = add_method(
+  "KclService.GetSchemaTypeMapping",
+  "GetSchemaTypeMappingArgs",
+  "GetSchemaTypeMappingResult"
+)
+
+RawAPI.validate_code = add_method(
+  "KclService.ValidateCode",
+  "ValidateCodeArgs",
+  "ValidateCodeResult"
+)
+
+RawAPI.load_settings_files = add_method(
+  "KclService.LoadSettingsFiles",
+  "LoadSettingsFilesArgs",
+  "LoadSettingsFilesResult"
+)
+
+RawAPI.rename = add_method("KclService.Rename", "RenameArgs", "RenameResult")
+
+RawAPI.rename_code =
+  add_method("KclService.RenameCode", "RenameCodeArgs", "RenameCodeResult")
+
+RawAPI.test = add_method("KclService.Test", "TestArgs", "TestResult")
+
+RawAPI.update_dependencies = add_method(
+  "KclService.UpdateDependencies",
+  "UpdateDependenciesArgs",
+  "UpdateDependenciesResult"
+)
+
 return RawAPI:new()
diff --git a/lua/spec/kcl_lib_raw_api_spec.lua b/lua/spec/kcl_lib_raw_api_spec.lua
index 31f73315..a702c394 100644
--- a/lua/spec/kcl_lib_raw_api_spec.lua
+++ b/lua/spec/kcl_lib_raw_api_spec.lua
@@ -1,6 +1,9 @@
 local io = require("io")
 local os = require("os")
 
+local json = require("dkjson")
+local pl_path = require("pl.path")
+
 local api = require("kcl_lib.raw_api")
 
 describe("kcl_lib.raw_api", function()
@@ -57,4 +60,200 @@ app: AppConfig {
       assert(os.remove(unformated_file))
     end)
   end)
+
+  describe("ping", function()
+    it("can call the native function", function()
+      local args = { value = "test" }
+      local result = assert(api:ping(args))
+      assert.are.equal("test", result.value)
+    end)
+  end)
+
+  describe("get_version", function()
+    it("can call the native function", function()
+      local args = {}
+      local result = assert(api:get_version(args))
+      assert.is.match("%d+%.%d+%.%d+", result.version)
+    end)
+  end)
+
+  describe("parse_program", function()
+    it("can call the native function", function()
+      local args = { paths = { "./spec/test_data/schema.k" } }
+      local result = assert(api:parse_program(args))
+      assert(json.decode(result.ast_json))
+    end)
+  end)
+
+  describe("parse_file", function()
+    it("can call the native function", function()
+      local args = { path = "./spec/test_data/schema.k" }
+      local result = assert(api:parse_file(args))
+      assert(json.decode(result.ast_json))
+    end)
+  end)
+
+  describe("load_package", function()
+    it("can call the native function", function()
+      local args = {
+        parse_args = { paths = { "./spec/test_data/schema.k" } },
+        resolve_ast = true,
+      }
+      local result = assert(api:load_package(args))
+      assert(json.decode(result.program))
+    end)
+  end)
+
+  describe("list_options", function()
+    it("can call the native function", function()
+      local args = { paths = { "./spec/test_data/options.k" } }
+      local result = assert(api:list_options(args))
+      assert.are.equal(3, #result.options)
+    end)
+  end)
+
+  describe("list_variables", function()
+    it("can call the native function", function()
+      local args = { files = { "./spec/test_data/schema.k" } }
+      local result = assert(api:list_variables(args))
+      assert.are.equal("AppConfig", result.variables.app.variables[1].type_name)
+    end)
+  end)
+
+  describe("format_code", function()
+    it("can call the native function", function()
+      local args = { source = "a   =   1" }
+      local result = assert(api:format_code(args))
+      assert.are.equal("a = 1\n", result.formatted)
+    end)
+  end)
+
+  describe("lint_path", function()
+    it("can call the native function", function()
+      local args = { paths = { "./spec/test_data/lint_err.k" } }
+      local result = assert(api:lint_path(args))
+      assert.are.equal("Module 'math' imported but unused", result.results[1])
+    end)
+  end)
+
+  describe("override_file", function()
+    it("can call the native function", function()
+      local filename = os.tmpname()
+      assert(
+        os.execute("cp ./spec/test_data/schema.k " .. filename),
+        "failed to copy schema.k to temporary file"
+      )
+      local args = { file = filename, specs = { "a=1" } }
+      local result = assert(api:override_file(args))
+      assert.is.truthy(result.result)
+      local file = assert(
+        io.open(filename, "r"),
+        "failed to open temporary file for reading"
+      )
+      local data = file:read("*a")
+      file:close()
+      local expected_content = [[schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+a = 1
+]]
+      assert.are.equal(expected_content, data)
+      assert(os.remove(filename))
+    end)
+  end)
+
+  describe("get_schema_type_mapping", function()
+    it("can call the native function", function()
+      local args =
+        { exec_args = { k_filename_list = { "./spec/test_data/schema.k" } } }
+      local result = assert(api:get_schema_type_mapping(args))
+      assert.are.equal(
+        "int",
+        result.schema_type_mapping["app"].properties.replicas.type
+      )
+    end)
+  end)
+
+  describe("validate_code", function()
+    it("can call the native function", function()
+      local args = {
+        code = "schema Person:\n  name: str",
+        data = '{"name": "Alice"}',
+        format = "json",
+      }
+      local result = assert(api:validate_code(args))
+      assert.are.equal(true, result.success)
+    end)
+  end)
+
+  describe("load_settings_files", function()
+    it("can call the native function", function()
+      local args =
+        { work_dir = ".", files = { "./spec/test_data/kcl-settings.yaml" } }
+      local result = assert(api:load_settings_files(args))
+      assert.are.equal("key", result.kcl_options[1].key)
+    end)
+  end)
+
+  describe("rename", function()
+    it("can call the native function", function()
+      local filename = os.tmpname()
+      assert(
+        os.execute("cp ./spec/test_data/options.k " .. filename),
+        "failed to copy options.k to temporary file"
+      )
+      local args = {
+        package_root = pl_path.dirname(filename),
+        symbol_path = "a",
+        file_paths = { filename },
+        new_name = "z",
+      }
+      local result = assert(api:rename(args))
+      assert.are.equal(1, #result.changed_files)
+      local file = assert(
+        io.open(filename, "r"),
+        "failed to open temporary file for reading"
+      )
+      local data = file:read("*a")
+      file:close()
+      local expected_content = [[z = option("key1")
+b = option("key2", required=True)
+c = {
+    metadata.key = option("metadata-key")
+}]]
+      assert.are.equal(expected_content, data)
+      assert(os.remove(filename))
+    end)
+  end)
+
+  describe("rename_code", function()
+    it("can call the native function", function()
+      local args = {
+        package_root = "/tmp",
+        symbol_path = "a",
+        source_codes = { ["/tmp/rename.k"] = "a = 1" },
+        new_name = "z",
+      }
+      local result = assert(api:rename_code(args))
+      assert.are.equal("z = 1", result.changed_codes["/tmp/rename.k"])
+    end)
+  end)
+
+  describe("test", function()
+    it("can call the native function", function()
+      local args = { pkg_list = { "./spec/test_data/test/..." } }
+      local result = assert(api:test(args))
+      assert.are.equal(3, #result.info)
+    end)
+  end)
+
+  describe("update_dependencies", function()
+    it("can call the native function", function()
+      local args = { manifest_path = "./spec/test_data/module" }
+      assert(api:update_dependencies(args))
+    end)
+  end)
 end)
diff --git a/lua/spec/test_data/kcl-settings.yaml b/lua/spec/test_data/kcl-settings.yaml
new file mode 100644
index 00000000..7b7300d7
--- /dev/null
+++ b/lua/spec/test_data/kcl-settings.yaml
@@ -0,0 +1,5 @@
+kcl_cli_configs:
+  strict_range_check: true
+kcl_options:
+  - key: key
+    value: value
diff --git a/lua/spec/test_data/lint_err.k b/lua/spec/test_data/lint_err.k
new file mode 100644
index 00000000..f5338c56
--- /dev/null
+++ b/lua/spec/test_data/lint_err.k
@@ -0,0 +1,8 @@
+import math
+
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
diff --git a/lua/spec/test_data/module/kcl.mod b/lua/spec/test_data/module/kcl.mod
new file mode 100644
index 00000000..3b9d5880
--- /dev/null
+++ b/lua/spec/test_data/module/kcl.mod
@@ -0,0 +1,8 @@
+[package]
+name = "mod_update"
+edition = "0.0.1"
+version = "0.0.1"
+
+[dependencies]
+helloworld = { oci = "oci://ghcr.io/kcl-lang/helloworld", tag = "0.1.0" }
+flask = { git = "https://github.com/kcl-lang/flask-demo-kcl-manifests", commit = "ade147b" }
diff --git a/lua/spec/test_data/module/main.k b/lua/spec/test_data/module/main.k
new file mode 100644
index 00000000..b371e741
--- /dev/null
+++ b/lua/spec/test_data/module/main.k
@@ -0,0 +1,4 @@
+import helloworld
+import flask
+
+a = helloworld.The_first_kcl_program
diff --git a/lua/spec/test_data/options.k b/lua/spec/test_data/options.k
new file mode 100644
index 00000000..1f6edf46
--- /dev/null
+++ b/lua/spec/test_data/options.k
@@ -0,0 +1,5 @@
+a = option("key1")
+b = option("key2", required=True)
+c = {
+    metadata.key = option("metadata-key")
+}
diff --git a/lua/spec/test_data/test/hello.k b/lua/spec/test_data/test/hello.k
new file mode 100644
index 00000000..cd87f446
--- /dev/null
+++ b/lua/spec/test_data/test/hello.k
@@ -0,0 +1,11 @@
+schema Person:
+    name: str = "kcl"
+    age: int = 1
+
+    check:
+        0 <= age <= 120, "age must be in [0, 120]"
+
+hello = Person {
+    name = "hello kcl"
+    age = 102
+}
diff --git a/lua/spec/test_data/test/hello_test.k b/lua/spec/test_data/test/hello_test.k
new file mode 100644
index 00000000..730dbc7a
--- /dev/null
+++ b/lua/spec/test_data/test/hello_test.k
@@ -0,0 +1,13 @@
+test_person = lambda {
+    a = Person{}
+    assert a.name == 'kcl'
+}
+test_person_age = lambda {
+    a = Person{}
+    assert a.age == 1
+}
+test_person_ok = lambda {
+    a = Person{}
+    assert a.name == "kcl"
+    assert a.age == 1
+}