diff --git a/docs/reference/xlang-api/dotnet-api.md b/docs/reference/xlang-api/dotnet-api.md
index 3de5fb4e..12387547 100644
--- a/docs/reference/xlang-api/dotnet-api.md
+++ b/docs/reference/xlang-api/dotnet-api.md
@@ -22,3 +22,625 @@ execArgs.KFilenameList.Add(path);
 var result = api.ExecProgram(execArgs);
 Console.WriteLine(result.YamlResult);
 ```
+
+## API Reference
+
+### ExecProgram
+
+Execute KCL file with arguments and return the JSON/YAML result.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var execArgs = new ExecProgram_Args();
+var path = "schema.k"
+execArgs.KFilenameList.Add(path);
+var result = new API().ExecProgram(execArgs);
+```
+
+</p>
+</details>
+
+### ParseProgram
+
+Parse KCL program with entry files and return the AST JSON string.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k"
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ParseProgram(args);
+```
+
+</p>
+</details>
+
+### ParseFile
+
+Parse KCL single file to Module AST JSON string with import dependencies and parse errors.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k"
+var args = new ParseFile_Args { Path = path };
+var result = new API().ParseFile(args);
+```
+
+</p>
+</details>
+
+### ParseProgram
+
+Parse KCL program with entry files and return the AST JSON string.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ListOptions(args);
+```
+
+</p>
+</details>
+
+### LoadPackage
+
+LoadPackage provides users with the ability to parse KCL program and semantic model information including symbols, types, definitions, etc.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var args = new LoadPackage_Args();
+args.ResolveAst = true;
+args.ParseArgs = new ParseProgram_Args();
+args.ParseArgs.Paths.Add(path);
+var result = new API().LoadPackage(args);
+```
+
+</p>
+</details>
+
+### ListVariables
+
+ListVariables provides users with the ability to parse KCL program and get all variables by specs.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var api = new API();
+var args = new ListVariables_Args();
+var path = "schema.k";
+args.Files.Add(path);
+var result = api.ListVariables(args);
+```
+
+</p>
+</details>
+
+### ListOptions
+
+ListOptions provides users with the ability to parse KCL program and get all option information.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `options.k` is
+
+```python
+a = option("key1")
+b = option("key2", required=True)
+c = {
+    metadata.key = option("metadata-key")
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "options.k";
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ListOptions(args);
+```
+
+</p>
+</details>
+
+### GetSchemaTypeMapping
+
+Get schema type mapping defined in the program.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var execArgs = new ExecProgram_Args();
+execArgs.KFilenameList.Add(path);
+var args = new GetSchemaTypeMapping_Args();
+args.ExecArgs = execArgs;
+var result = new API().GetSchemaTypeMapping(args);
+```
+
+</p>
+</details>
+
+### OverrideFile
+
+Override KCL file with arguments. See [https://www.kcl-lang.io/docs/user_docs/guides/automation](https://www.kcl-lang.io/docs/user_docs/guides/automation) for more override spec guide.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```python
+a = 1
+
+b = {
+    "a": 1
+    "b": 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var args = new OverrideFile_Args
+{
+    File = "main.k",
+};
+args.Specs.Add("b.a=2");
+var result = new API().OverrideFile(args);
+```
+
+</p>
+</details>
+
+### FormatCode
+
+Format the code source.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+string sourceCode = "schema Person:\n" + "    name:   str\n" + "    age:    int\n" + "    check:\n"
+    + "        0 <   age <   120\n";
+string expectedFormattedCode = "schema Person:\n" + "    name: str\n" + "    age: int\n\n" + "    check:\n"
+    + "        0 < age < 120\n\n";
+var api = new API();
+var args = new FormatCode_Args();
+args.Source = sourceCode;
+var result = api.FormatCode(args);
+```
+
+</p>
+</details>
+
+### FormatPath
+
+Format KCL file or directory path contains KCL files and returns the changed file paths.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `format_path.k` is
+
+```python
+schema Person:
+    name:   str
+    age:    int
+
+    check:
+        0 <   age <   120
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var api = new API();
+var args = new FormatPath_Args();
+var path = "format_path.k";
+args.Path = path;
+var result = api.FormatPath(args);
+```
+
+</p>
+</details>
+
+### LintPath
+
+Lint files and return error messages including errors and warnings.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `lint_path.k` is
+
+```python
+import math
+
+a = 1
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "lint_path.k"
+var args = new LintPath_Args();
+args.Paths.Add(path);
+var result = new API().LintPath(args);
+bool foundWarning = result.Results.Any(warning => warning.Contains("Module 'math' imported but unused"));
+```
+
+</p>
+</details>
+
+### ValidateCode
+
+Validate code using schema and JSON/YAML data strings.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+string code = @"
+schema Person:
+    name: str
+    age: int
+    check:
+        0 < age < 120
+";
+string data = "{\"name\": \"Alice\", \"age\": 10}";
+var args = new ValidateCode_Args
+{
+    Code = code,
+    Data = data,
+    Format = "json"
+};
+var result = new API().ValidateCode(args);
+```
+
+</p>
+</details>
+
+### Rename
+
+Rename all the occurrences of the target symbol in the files. This API will rewrite files if they contain symbols to be renamed. Return the file paths that got changed.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```python
+a = 1
+b = a
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+Rename_Args args = Rename_Args.newBuilder().setPackageRoot(".").setSymbolPath("a")
+        .addFilePaths("main.k").setNewName("a2").build();
+API apiInstance = new API();
+Rename_Result result = apiInstance.rename(args);
+```
+
+</p>
+</details>
+
+### RenameCode
+
+Rename all the occurrences of the target symbol and return the modified code if any code has been changed. This API won't rewrite files but return the changed code.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var args = new RenameCode_Args
+{
+    PackageRoot = "/mock/path",
+    SymbolPath = "a",
+    SourceCodes = { { "/mock/path/main.k", "a = 1\nb = a" } },
+    NewName = "a2"
+};
+var result = new API().RenameCode(args);
+```
+
+</p>
+</details>
+
+### Test
+
+Test KCL packages with test arguments.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var pkg = Path.Combine(parentDirectory, "test_data", "testing");
+var args = new Test_Args();
+args.PkgList.Add(pkg + "/...");
+var result = new API().Test(args);
+```
+
+</p>
+</details>
+
+### LoadSettingsFiles
+
+Load the setting file config defined in `kcl.yaml`
+
+<details><summary>Example</summary>
+<p>
+
+The content of `kcl.yaml` is
+
+```yaml
+kcl_cli_configs:
+  strict_range_check: true
+kcl_options:
+  - key: key
+    value: value
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var workDir = ".";
+var settingsFile = "kcl.yaml";
+var args = new LoadSettingsFiles_Args
+{
+    WorkDir = workDir,
+};
+args.Files.Add(settingsFile);
+var result = new API().LoadSettingsFiles(args);
+```
+
+</p>
+</details>
+
+### UpdateDependencies
+
+Download and update dependencies defined in the `kcl.mod` file and return the external package name and location list.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[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" }
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var manifestPath = "module";
+var args = new UpdateDependencies_Args { ManifestPath = manifestPath };
+var result = new API().UpdateDependencies(args);
+```
+
+</p>
+</details>
+
+Call `ExecProgram` with external dependencies
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[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" }
+```
+
+The content of `module/main.k` is
+
+```python
+import helloworld
+import flask
+
+a = helloworld.The_first_kcl_program
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+API api = new API();
+
+var manifestPath = "module";
+var testFile = Path.Combine(manifestPath, "main.k");
+var updateArgs = new UpdateDependencies_Args { ManifestPath = manifestPath };
+var depResult = new API().UpdateDependencies(updateArgs);
+var execArgs = new ExecProgram_Args();
+execArgs.KFilenameList.Add(testFile);
+execArgs.ExternalPkgs.AddRange(depResult.ExternalPkgs);
+var execResult = new API().ExecProgram(execArgs);
+```
+
+</p>
+</details>
+
+### GetVersion
+
+Return the KCL service version information.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var result = new API().GetVersion(new GetVersion_Args());
+```
+
+</p>
+</details>
diff --git a/docs/reference/xlang-api/java-api.md b/docs/reference/xlang-api/java-api.md
index c025dd90..fee90323 100644
--- a/docs/reference/xlang-api/java-api.md
+++ b/docs/reference/xlang-api/java-api.md
@@ -207,15 +207,13 @@ app: AppConfig {
 
 Java Code
 
-```python
-import kcl_lib.api as api
-
-args = api.LoadPackage_Args(
-    parse_args=api.ParseProgram_Args(paths=["schema.k"]), resolve_ast=True
-)
-api = api.API()
-result = api.load_package(args)
-assert list(result.symbols.values())[0].ty.schema_name == "AppConfig"
+```java
+import com.kcl.api.*;
+
+API api = new API();
+LoadPackage_Result result = api.loadPackage(LoadPackage_Args.newBuilder().setResolveAst(true)
+    .setWithAstIndex(true)
+    .setParseArgs(ParseProgram_Args.newBuilder().addPaths("schema.k").build()).build());
 ```
 
 </p>
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/dotnet-api.md b/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/dotnet-api.md
index bfabfedb..6dea5eed 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/dotnet-api.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/dotnet-api.md
@@ -22,3 +22,625 @@ execArgs.KFilenameList.Add(path);
 var result = api.ExecProgram(execArgs);
 Console.WriteLine(result.YamlResult);
 ```
+
+## API 参考
+
+### ExecProgram
+
+Execute KCL file with arguments and return the JSON/YAML result.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var execArgs = new ExecProgram_Args();
+var path = "schema.k"
+execArgs.KFilenameList.Add(path);
+var result = new API().ExecProgram(execArgs);
+```
+
+</p>
+</details>
+
+### ParseProgram
+
+Parse KCL program with entry files and return the AST JSON string.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k"
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ParseProgram(args);
+```
+
+</p>
+</details>
+
+### ParseFile
+
+Parse KCL single file to Module AST JSON string with import dependencies and parse errors.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k"
+var args = new ParseFile_Args { Path = path };
+var result = new API().ParseFile(args);
+```
+
+</p>
+</details>
+
+### ParseProgram
+
+Parse KCL program with entry files and return the AST JSON string.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ListOptions(args);
+```
+
+</p>
+</details>
+
+### LoadPackage
+
+LoadPackage provides users with the ability to parse KCL program and semantic model information including symbols, types, definitions, etc.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var args = new LoadPackage_Args();
+args.ResolveAst = true;
+args.ParseArgs = new ParseProgram_Args();
+args.ParseArgs.Paths.Add(path);
+var result = new API().LoadPackage(args);
+```
+
+</p>
+</details>
+
+### ListVariables
+
+ListVariables provides users with the ability to parse KCL program and get all variables by specs.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var api = new API();
+var args = new ListVariables_Args();
+var path = "schema.k";
+args.Files.Add(path);
+var result = api.ListVariables(args);
+```
+
+</p>
+</details>
+
+### ListOptions
+
+ListOptions provides users with the ability to parse KCL program and get all option information.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `options.k` is
+
+```python
+a = option("key1")
+b = option("key2", required=True)
+c = {
+    metadata.key = option("metadata-key")
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "options.k";
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ListOptions(args);
+```
+
+</p>
+</details>
+
+### GetSchemaTypeMapping
+
+Get schema type mapping defined in the program.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var execArgs = new ExecProgram_Args();
+execArgs.KFilenameList.Add(path);
+var args = new GetSchemaTypeMapping_Args();
+args.ExecArgs = execArgs;
+var result = new API().GetSchemaTypeMapping(args);
+```
+
+</p>
+</details>
+
+### OverrideFile
+
+Override KCL file with arguments. See [https://www.kcl-lang.io/docs/user_docs/guides/automation](https://www.kcl-lang.io/docs/user_docs/guides/automation) for more override spec guide.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```python
+a = 1
+
+b = {
+    "a": 1
+    "b": 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var args = new OverrideFile_Args
+{
+    File = "main.k",
+};
+args.Specs.Add("b.a=2");
+var result = new API().OverrideFile(args);
+```
+
+</p>
+</details>
+
+### FormatCode
+
+Format the code source.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+string sourceCode = "schema Person:\n" + "    name:   str\n" + "    age:    int\n" + "    check:\n"
+    + "        0 <   age <   120\n";
+string expectedFormattedCode = "schema Person:\n" + "    name: str\n" + "    age: int\n\n" + "    check:\n"
+    + "        0 < age < 120\n\n";
+var api = new API();
+var args = new FormatCode_Args();
+args.Source = sourceCode;
+var result = api.FormatCode(args);
+```
+
+</p>
+</details>
+
+### FormatPath
+
+Format KCL file or directory path contains KCL files and returns the changed file paths.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `format_path.k` is
+
+```python
+schema Person:
+    name:   str
+    age:    int
+
+    check:
+        0 <   age <   120
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var api = new API();
+var args = new FormatPath_Args();
+var path = "format_path.k";
+args.Path = path;
+var result = api.FormatPath(args);
+```
+
+</p>
+</details>
+
+### LintPath
+
+Lint files and return error messages including errors and warnings.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `lint_path.k` is
+
+```python
+import math
+
+a = 1
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "lint_path.k"
+var args = new LintPath_Args();
+args.Paths.Add(path);
+var result = new API().LintPath(args);
+bool foundWarning = result.Results.Any(warning => warning.Contains("Module 'math' imported but unused"));
+```
+
+</p>
+</details>
+
+### ValidateCode
+
+Validate code using schema and JSON/YAML data strings.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+string code = @"
+schema Person:
+    name: str
+    age: int
+    check:
+        0 < age < 120
+";
+string data = "{\"name\": \"Alice\", \"age\": 10}";
+var args = new ValidateCode_Args
+{
+    Code = code,
+    Data = data,
+    Format = "json"
+};
+var result = new API().ValidateCode(args);
+```
+
+</p>
+</details>
+
+### Rename
+
+Rename all the occurrences of the target symbol in the files. This API will rewrite files if they contain symbols to be renamed. Return the file paths that got changed.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```python
+a = 1
+b = a
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+Rename_Args args = Rename_Args.newBuilder().setPackageRoot(".").setSymbolPath("a")
+        .addFilePaths("main.k").setNewName("a2").build();
+API apiInstance = new API();
+Rename_Result result = apiInstance.rename(args);
+```
+
+</p>
+</details>
+
+### RenameCode
+
+Rename all the occurrences of the target symbol and return the modified code if any code has been changed. This API won't rewrite files but return the changed code.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var args = new RenameCode_Args
+{
+    PackageRoot = "/mock/path",
+    SymbolPath = "a",
+    SourceCodes = { { "/mock/path/main.k", "a = 1\nb = a" } },
+    NewName = "a2"
+};
+var result = new API().RenameCode(args);
+```
+
+</p>
+</details>
+
+### Test
+
+Test KCL packages with test arguments.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var pkg = Path.Combine(parentDirectory, "test_data", "testing");
+var args = new Test_Args();
+args.PkgList.Add(pkg + "/...");
+var result = new API().Test(args);
+```
+
+</p>
+</details>
+
+### LoadSettingsFiles
+
+Load the setting file config defined in `kcl.yaml`
+
+<details><summary>Example</summary>
+<p>
+
+The content of `kcl.yaml` is
+
+```yaml
+kcl_cli_configs:
+  strict_range_check: true
+kcl_options:
+  - key: key
+    value: value
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var workDir = ".";
+var settingsFile = "kcl.yaml";
+var args = new LoadSettingsFiles_Args
+{
+    WorkDir = workDir,
+};
+args.Files.Add(settingsFile);
+var result = new API().LoadSettingsFiles(args);
+```
+
+</p>
+</details>
+
+### UpdateDependencies
+
+Download and update dependencies defined in the `kcl.mod` file and return the external package name and location list.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[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" }
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var manifestPath = "module";
+var args = new UpdateDependencies_Args { ManifestPath = manifestPath };
+var result = new API().UpdateDependencies(args);
+```
+
+</p>
+</details>
+
+Call `ExecProgram` with external dependencies
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[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" }
+```
+
+The content of `module/main.k` is
+
+```python
+import helloworld
+import flask
+
+a = helloworld.The_first_kcl_program
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+API api = new API();
+
+var manifestPath = "module";
+var testFile = Path.Combine(manifestPath, "main.k");
+var updateArgs = new UpdateDependencies_Args { ManifestPath = manifestPath };
+var depResult = new API().UpdateDependencies(updateArgs);
+var execArgs = new ExecProgram_Args();
+execArgs.KFilenameList.Add(testFile);
+execArgs.ExternalPkgs.AddRange(depResult.ExternalPkgs);
+var execResult = new API().ExecProgram(execArgs);
+```
+
+</p>
+</details>
+
+### GetVersion
+
+Return the KCL service version information.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var result = new API().GetVersion(new GetVersion_Args());
+```
+
+</p>
+</details>
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/java-api.md b/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/java-api.md
index 2ecea072..c8df505e 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/java-api.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/java-api.md
@@ -206,15 +206,13 @@ app: AppConfig {
 
 Java Code
 
-```python
-import kcl_lib.api as api
-
-args = api.LoadPackage_Args(
-    parse_args=api.ParseProgram_Args(paths=["schema.k"]), resolve_ast=True
-)
-api = api.API()
-result = api.load_package(args)
-assert list(result.symbols.values())[0].ty.schema_name == "AppConfig"
+```java
+import com.kcl.api.*;
+
+API api = new API();
+LoadPackage_Result result = api.loadPackage(LoadPackage_Args.newBuilder().setResolveAst(true)
+    .setWithAstIndex(true)
+    .setParseArgs(ParseProgram_Args.newBuilder().addPaths("schema.k").build()).build());
 ```
 
 </p>
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/dotnet-api.md b/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/dotnet-api.md
index bfabfedb..6dea5eed 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/dotnet-api.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/dotnet-api.md
@@ -22,3 +22,625 @@ execArgs.KFilenameList.Add(path);
 var result = api.ExecProgram(execArgs);
 Console.WriteLine(result.YamlResult);
 ```
+
+## API 参考
+
+### ExecProgram
+
+Execute KCL file with arguments and return the JSON/YAML result.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var execArgs = new ExecProgram_Args();
+var path = "schema.k"
+execArgs.KFilenameList.Add(path);
+var result = new API().ExecProgram(execArgs);
+```
+
+</p>
+</details>
+
+### ParseProgram
+
+Parse KCL program with entry files and return the AST JSON string.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k"
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ParseProgram(args);
+```
+
+</p>
+</details>
+
+### ParseFile
+
+Parse KCL single file to Module AST JSON string with import dependencies and parse errors.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k"
+var args = new ParseFile_Args { Path = path };
+var result = new API().ParseFile(args);
+```
+
+</p>
+</details>
+
+### ParseProgram
+
+Parse KCL program with entry files and return the AST JSON string.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ListOptions(args);
+```
+
+</p>
+</details>
+
+### LoadPackage
+
+LoadPackage provides users with the ability to parse KCL program and semantic model information including symbols, types, definitions, etc.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var args = new LoadPackage_Args();
+args.ResolveAst = true;
+args.ParseArgs = new ParseProgram_Args();
+args.ParseArgs.Paths.Add(path);
+var result = new API().LoadPackage(args);
+```
+
+</p>
+</details>
+
+### ListVariables
+
+ListVariables provides users with the ability to parse KCL program and get all variables by specs.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var api = new API();
+var args = new ListVariables_Args();
+var path = "schema.k";
+args.Files.Add(path);
+var result = api.ListVariables(args);
+```
+
+</p>
+</details>
+
+### ListOptions
+
+ListOptions provides users with the ability to parse KCL program and get all option information.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `options.k` is
+
+```python
+a = option("key1")
+b = option("key2", required=True)
+c = {
+    metadata.key = option("metadata-key")
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "options.k";
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ListOptions(args);
+```
+
+</p>
+</details>
+
+### GetSchemaTypeMapping
+
+Get schema type mapping defined in the program.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var execArgs = new ExecProgram_Args();
+execArgs.KFilenameList.Add(path);
+var args = new GetSchemaTypeMapping_Args();
+args.ExecArgs = execArgs;
+var result = new API().GetSchemaTypeMapping(args);
+```
+
+</p>
+</details>
+
+### OverrideFile
+
+Override KCL file with arguments. See [https://www.kcl-lang.io/docs/user_docs/guides/automation](https://www.kcl-lang.io/docs/user_docs/guides/automation) for more override spec guide.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```python
+a = 1
+
+b = {
+    "a": 1
+    "b": 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var args = new OverrideFile_Args
+{
+    File = "main.k",
+};
+args.Specs.Add("b.a=2");
+var result = new API().OverrideFile(args);
+```
+
+</p>
+</details>
+
+### FormatCode
+
+Format the code source.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+string sourceCode = "schema Person:\n" + "    name:   str\n" + "    age:    int\n" + "    check:\n"
+    + "        0 <   age <   120\n";
+string expectedFormattedCode = "schema Person:\n" + "    name: str\n" + "    age: int\n\n" + "    check:\n"
+    + "        0 < age < 120\n\n";
+var api = new API();
+var args = new FormatCode_Args();
+args.Source = sourceCode;
+var result = api.FormatCode(args);
+```
+
+</p>
+</details>
+
+### FormatPath
+
+Format KCL file or directory path contains KCL files and returns the changed file paths.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `format_path.k` is
+
+```python
+schema Person:
+    name:   str
+    age:    int
+
+    check:
+        0 <   age <   120
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var api = new API();
+var args = new FormatPath_Args();
+var path = "format_path.k";
+args.Path = path;
+var result = api.FormatPath(args);
+```
+
+</p>
+</details>
+
+### LintPath
+
+Lint files and return error messages including errors and warnings.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `lint_path.k` is
+
+```python
+import math
+
+a = 1
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "lint_path.k"
+var args = new LintPath_Args();
+args.Paths.Add(path);
+var result = new API().LintPath(args);
+bool foundWarning = result.Results.Any(warning => warning.Contains("Module 'math' imported but unused"));
+```
+
+</p>
+</details>
+
+### ValidateCode
+
+Validate code using schema and JSON/YAML data strings.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+string code = @"
+schema Person:
+    name: str
+    age: int
+    check:
+        0 < age < 120
+";
+string data = "{\"name\": \"Alice\", \"age\": 10}";
+var args = new ValidateCode_Args
+{
+    Code = code,
+    Data = data,
+    Format = "json"
+};
+var result = new API().ValidateCode(args);
+```
+
+</p>
+</details>
+
+### Rename
+
+Rename all the occurrences of the target symbol in the files. This API will rewrite files if they contain symbols to be renamed. Return the file paths that got changed.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```python
+a = 1
+b = a
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+Rename_Args args = Rename_Args.newBuilder().setPackageRoot(".").setSymbolPath("a")
+        .addFilePaths("main.k").setNewName("a2").build();
+API apiInstance = new API();
+Rename_Result result = apiInstance.rename(args);
+```
+
+</p>
+</details>
+
+### RenameCode
+
+Rename all the occurrences of the target symbol and return the modified code if any code has been changed. This API won't rewrite files but return the changed code.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var args = new RenameCode_Args
+{
+    PackageRoot = "/mock/path",
+    SymbolPath = "a",
+    SourceCodes = { { "/mock/path/main.k", "a = 1\nb = a" } },
+    NewName = "a2"
+};
+var result = new API().RenameCode(args);
+```
+
+</p>
+</details>
+
+### Test
+
+Test KCL packages with test arguments.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var pkg = Path.Combine(parentDirectory, "test_data", "testing");
+var args = new Test_Args();
+args.PkgList.Add(pkg + "/...");
+var result = new API().Test(args);
+```
+
+</p>
+</details>
+
+### LoadSettingsFiles
+
+Load the setting file config defined in `kcl.yaml`
+
+<details><summary>Example</summary>
+<p>
+
+The content of `kcl.yaml` is
+
+```yaml
+kcl_cli_configs:
+  strict_range_check: true
+kcl_options:
+  - key: key
+    value: value
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var workDir = ".";
+var settingsFile = "kcl.yaml";
+var args = new LoadSettingsFiles_Args
+{
+    WorkDir = workDir,
+};
+args.Files.Add(settingsFile);
+var result = new API().LoadSettingsFiles(args);
+```
+
+</p>
+</details>
+
+### UpdateDependencies
+
+Download and update dependencies defined in the `kcl.mod` file and return the external package name and location list.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[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" }
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var manifestPath = "module";
+var args = new UpdateDependencies_Args { ManifestPath = manifestPath };
+var result = new API().UpdateDependencies(args);
+```
+
+</p>
+</details>
+
+Call `ExecProgram` with external dependencies
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[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" }
+```
+
+The content of `module/main.k` is
+
+```python
+import helloworld
+import flask
+
+a = helloworld.The_first_kcl_program
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+API api = new API();
+
+var manifestPath = "module";
+var testFile = Path.Combine(manifestPath, "main.k");
+var updateArgs = new UpdateDependencies_Args { ManifestPath = manifestPath };
+var depResult = new API().UpdateDependencies(updateArgs);
+var execArgs = new ExecProgram_Args();
+execArgs.KFilenameList.Add(testFile);
+execArgs.ExternalPkgs.AddRange(depResult.ExternalPkgs);
+var execResult = new API().ExecProgram(execArgs);
+```
+
+</p>
+</details>
+
+### GetVersion
+
+Return the KCL service version information.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var result = new API().GetVersion(new GetVersion_Args());
+```
+
+</p>
+</details>
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/java-api.md b/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/java-api.md
index 2ecea072..c8df505e 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/java-api.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/java-api.md
@@ -206,15 +206,13 @@ app: AppConfig {
 
 Java Code
 
-```python
-import kcl_lib.api as api
-
-args = api.LoadPackage_Args(
-    parse_args=api.ParseProgram_Args(paths=["schema.k"]), resolve_ast=True
-)
-api = api.API()
-result = api.load_package(args)
-assert list(result.symbols.values())[0].ty.schema_name == "AppConfig"
+```java
+import com.kcl.api.*;
+
+API api = new API();
+LoadPackage_Result result = api.loadPackage(LoadPackage_Args.newBuilder().setResolveAst(true)
+    .setWithAstIndex(true)
+    .setParseArgs(ParseProgram_Args.newBuilder().addPaths("schema.k").build()).build());
 ```
 
 </p>
diff --git a/versioned_docs/version-0.9/reference/xlang-api/dotnet-api.md b/versioned_docs/version-0.9/reference/xlang-api/dotnet-api.md
index 3de5fb4e..12387547 100644
--- a/versioned_docs/version-0.9/reference/xlang-api/dotnet-api.md
+++ b/versioned_docs/version-0.9/reference/xlang-api/dotnet-api.md
@@ -22,3 +22,625 @@ execArgs.KFilenameList.Add(path);
 var result = api.ExecProgram(execArgs);
 Console.WriteLine(result.YamlResult);
 ```
+
+## API Reference
+
+### ExecProgram
+
+Execute KCL file with arguments and return the JSON/YAML result.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var execArgs = new ExecProgram_Args();
+var path = "schema.k"
+execArgs.KFilenameList.Add(path);
+var result = new API().ExecProgram(execArgs);
+```
+
+</p>
+</details>
+
+### ParseProgram
+
+Parse KCL program with entry files and return the AST JSON string.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k"
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ParseProgram(args);
+```
+
+</p>
+</details>
+
+### ParseFile
+
+Parse KCL single file to Module AST JSON string with import dependencies and parse errors.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k"
+var args = new ParseFile_Args { Path = path };
+var result = new API().ParseFile(args);
+```
+
+</p>
+</details>
+
+### ParseProgram
+
+Parse KCL program with entry files and return the AST JSON string.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ListOptions(args);
+```
+
+</p>
+</details>
+
+### LoadPackage
+
+LoadPackage provides users with the ability to parse KCL program and semantic model information including symbols, types, definitions, etc.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var args = new LoadPackage_Args();
+args.ResolveAst = true;
+args.ParseArgs = new ParseProgram_Args();
+args.ParseArgs.Paths.Add(path);
+var result = new API().LoadPackage(args);
+```
+
+</p>
+</details>
+
+### ListVariables
+
+ListVariables provides users with the ability to parse KCL program and get all variables by specs.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var api = new API();
+var args = new ListVariables_Args();
+var path = "schema.k";
+args.Files.Add(path);
+var result = api.ListVariables(args);
+```
+
+</p>
+</details>
+
+### ListOptions
+
+ListOptions provides users with the ability to parse KCL program and get all option information.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `options.k` is
+
+```python
+a = option("key1")
+b = option("key2", required=True)
+c = {
+    metadata.key = option("metadata-key")
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "options.k";
+var args = new ParseProgram_Args();
+args.Paths.Add(path);
+var result = new API().ListOptions(args);
+```
+
+</p>
+</details>
+
+### GetSchemaTypeMapping
+
+Get schema type mapping defined in the program.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `schema.k` is
+
+```python
+schema AppConfig:
+    replicas: int
+
+app: AppConfig {
+    replicas: 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "schema.k";
+var execArgs = new ExecProgram_Args();
+execArgs.KFilenameList.Add(path);
+var args = new GetSchemaTypeMapping_Args();
+args.ExecArgs = execArgs;
+var result = new API().GetSchemaTypeMapping(args);
+```
+
+</p>
+</details>
+
+### OverrideFile
+
+Override KCL file with arguments. See [https://www.kcl-lang.io/docs/user_docs/guides/automation](https://www.kcl-lang.io/docs/user_docs/guides/automation) for more override spec guide.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```python
+a = 1
+
+b = {
+    "a": 1
+    "b": 2
+}
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var args = new OverrideFile_Args
+{
+    File = "main.k",
+};
+args.Specs.Add("b.a=2");
+var result = new API().OverrideFile(args);
+```
+
+</p>
+</details>
+
+### FormatCode
+
+Format the code source.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+string sourceCode = "schema Person:\n" + "    name:   str\n" + "    age:    int\n" + "    check:\n"
+    + "        0 <   age <   120\n";
+string expectedFormattedCode = "schema Person:\n" + "    name: str\n" + "    age: int\n\n" + "    check:\n"
+    + "        0 < age < 120\n\n";
+var api = new API();
+var args = new FormatCode_Args();
+args.Source = sourceCode;
+var result = api.FormatCode(args);
+```
+
+</p>
+</details>
+
+### FormatPath
+
+Format KCL file or directory path contains KCL files and returns the changed file paths.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `format_path.k` is
+
+```python
+schema Person:
+    name:   str
+    age:    int
+
+    check:
+        0 <   age <   120
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var api = new API();
+var args = new FormatPath_Args();
+var path = "format_path.k";
+args.Path = path;
+var result = api.FormatPath(args);
+```
+
+</p>
+</details>
+
+### LintPath
+
+Lint files and return error messages including errors and warnings.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `lint_path.k` is
+
+```python
+import math
+
+a = 1
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var path = "lint_path.k"
+var args = new LintPath_Args();
+args.Paths.Add(path);
+var result = new API().LintPath(args);
+bool foundWarning = result.Results.Any(warning => warning.Contains("Module 'math' imported but unused"));
+```
+
+</p>
+</details>
+
+### ValidateCode
+
+Validate code using schema and JSON/YAML data strings.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+string code = @"
+schema Person:
+    name: str
+    age: int
+    check:
+        0 < age < 120
+";
+string data = "{\"name\": \"Alice\", \"age\": 10}";
+var args = new ValidateCode_Args
+{
+    Code = code,
+    Data = data,
+    Format = "json"
+};
+var result = new API().ValidateCode(args);
+```
+
+</p>
+</details>
+
+### Rename
+
+Rename all the occurrences of the target symbol in the files. This API will rewrite files if they contain symbols to be renamed. Return the file paths that got changed.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```python
+a = 1
+b = a
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+Rename_Args args = Rename_Args.newBuilder().setPackageRoot(".").setSymbolPath("a")
+        .addFilePaths("main.k").setNewName("a2").build();
+API apiInstance = new API();
+Rename_Result result = apiInstance.rename(args);
+```
+
+</p>
+</details>
+
+### RenameCode
+
+Rename all the occurrences of the target symbol and return the modified code if any code has been changed. This API won't rewrite files but return the changed code.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var args = new RenameCode_Args
+{
+    PackageRoot = "/mock/path",
+    SymbolPath = "a",
+    SourceCodes = { { "/mock/path/main.k", "a = 1\nb = a" } },
+    NewName = "a2"
+};
+var result = new API().RenameCode(args);
+```
+
+</p>
+</details>
+
+### Test
+
+Test KCL packages with test arguments.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var pkg = Path.Combine(parentDirectory, "test_data", "testing");
+var args = new Test_Args();
+args.PkgList.Add(pkg + "/...");
+var result = new API().Test(args);
+```
+
+</p>
+</details>
+
+### LoadSettingsFiles
+
+Load the setting file config defined in `kcl.yaml`
+
+<details><summary>Example</summary>
+<p>
+
+The content of `kcl.yaml` is
+
+```yaml
+kcl_cli_configs:
+  strict_range_check: true
+kcl_options:
+  - key: key
+    value: value
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var workDir = ".";
+var settingsFile = "kcl.yaml";
+var args = new LoadSettingsFiles_Args
+{
+    WorkDir = workDir,
+};
+args.Files.Add(settingsFile);
+var result = new API().LoadSettingsFiles(args);
+```
+
+</p>
+</details>
+
+### UpdateDependencies
+
+Download and update dependencies defined in the `kcl.mod` file and return the external package name and location list.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[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" }
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var manifestPath = "module";
+var args = new UpdateDependencies_Args { ManifestPath = manifestPath };
+var result = new API().UpdateDependencies(args);
+```
+
+</p>
+</details>
+
+Call `ExecProgram` with external dependencies
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[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" }
+```
+
+The content of `module/main.k` is
+
+```python
+import helloworld
+import flask
+
+a = helloworld.The_first_kcl_program
+```
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+API api = new API();
+
+var manifestPath = "module";
+var testFile = Path.Combine(manifestPath, "main.k");
+var updateArgs = new UpdateDependencies_Args { ManifestPath = manifestPath };
+var depResult = new API().UpdateDependencies(updateArgs);
+var execArgs = new ExecProgram_Args();
+execArgs.KFilenameList.Add(testFile);
+execArgs.ExternalPkgs.AddRange(depResult.ExternalPkgs);
+var execResult = new API().ExecProgram(execArgs);
+```
+
+</p>
+</details>
+
+### GetVersion
+
+Return the KCL service version information.
+
+<details><summary>Example</summary>
+<p>
+
+C# Code
+
+```csharp
+using KclLib.API;
+
+var result = new API().GetVersion(new GetVersion_Args());
+```
+
+</p>
+</details>
diff --git a/versioned_docs/version-0.9/reference/xlang-api/java-api.md b/versioned_docs/version-0.9/reference/xlang-api/java-api.md
index c025dd90..fee90323 100644
--- a/versioned_docs/version-0.9/reference/xlang-api/java-api.md
+++ b/versioned_docs/version-0.9/reference/xlang-api/java-api.md
@@ -207,15 +207,13 @@ app: AppConfig {
 
 Java Code
 
-```python
-import kcl_lib.api as api
-
-args = api.LoadPackage_Args(
-    parse_args=api.ParseProgram_Args(paths=["schema.k"]), resolve_ast=True
-)
-api = api.API()
-result = api.load_package(args)
-assert list(result.symbols.values())[0].ty.schema_name == "AppConfig"
+```java
+import com.kcl.api.*;
+
+API api = new API();
+LoadPackage_Result result = api.loadPackage(LoadPackage_Args.newBuilder().setResolveAst(true)
+    .setWithAstIndex(true)
+    .setParseArgs(ParseProgram_Args.newBuilder().addPaths("schema.k").build()).build());
 ```
 
 </p>