diff --git a/programs/nstool/source/SdkApiString.cpp b/programs/nstool/source/SdkApiString.cpp
new file mode 100644
index 0000000..2268fd6
--- /dev/null
+++ b/programs/nstool/source/SdkApiString.cpp
@@ -0,0 +1,87 @@
+#include <sstream>
+#include "SdkApiString.h"
+
+SdkApiString::SdkApiString(const std::string& full_str) :
+	SdkApiString(API_MIDDLEWARE, "", "")
+{
+	resolveApiString(full_str);
+}
+
+SdkApiString::SdkApiString(ApiType type, const std::string& vender_name, const std::string& module_name) :
+	mApiType(type),
+	mVenderName(vender_name),
+	mModuleName(module_name)
+{
+
+}
+
+void SdkApiString::operator=(const SdkApiString& other)
+{
+	mApiType = other.mApiType;
+	mVenderName = other.mVenderName;
+	mModuleName = other.mModuleName;
+}
+
+SdkApiString::ApiType SdkApiString::getApiType() const
+{
+	return mApiType;
+}
+
+void SdkApiString::setApiType(ApiType type)
+{
+	mApiType = type;
+}
+
+const std::string& SdkApiString::getVenderName() const
+{
+	return mVenderName;
+}
+
+void SdkApiString::setVenderName(const std::string& name)
+{
+	mVenderName = name;
+}
+
+const std::string& SdkApiString::getModuleName() const
+{
+	return mModuleName;
+}
+
+void SdkApiString::setModuleName(const std::string& name)
+{
+	mModuleName = name;
+}
+
+void SdkApiString::resolveApiString(const std::string& full_str)
+{
+	std::stringstream list_stream(full_str);
+	std::string api_type, vender, module;
+
+	std::getline(list_stream, api_type, kSplitChar);
+	std::getline(list_stream, vender, kSplitChar);
+	std::getline(list_stream, module);
+
+
+	if (api_type == kSdkMiddleWareApiString)
+	{
+		if (vender == kVenderNintendo && module.find(kSdkVersionString) != std::string::npos)
+		{
+			mApiType = API_SDK_VERSION;
+		}
+		else
+		{
+			mApiType = API_MIDDLEWARE;
+		}
+	}
+	else if (api_type == kSdkDebugApiString)
+	{
+		mApiType = API_DEBUG;
+	}
+	else if (api_type == kSdkPrivateApiString)
+	{
+		mApiType = API_PRIVATE;
+	}
+
+	mVenderName = vender;
+	mModuleName = module;
+}
\ No newline at end of file
diff --git a/programs/nstool/source/SdkApiString.h b/programs/nstool/source/SdkApiString.h
new file mode 100644
index 0000000..5c794df
--- /dev/null
+++ b/programs/nstool/source/SdkApiString.h
@@ -0,0 +1,43 @@
+#pragma once
+#include <string>
+
+class SdkApiString
+{
+public:
+	enum ApiType
+	{
+		API_MIDDLEWARE,
+		API_DEBUG,
+		API_PRIVATE,
+		API_SDK_VERSION
+	};
+
+	SdkApiString(const std::string& full_str);
+	SdkApiString(ApiType type, const std::string& vender_name, const std::string& module_name);
+
+	void operator=(const SdkApiString& other);
+
+	ApiType getApiType() const;
+	void setApiType(ApiType type);
+
+	const std::string& getVenderName() const;
+	void setVenderName(const std::string& name);
+
+	const std::string& getModuleName() const;
+	void setModuleName(const std::string& name);
+private:
+	const std::string kModuleName = "SdkApiString";
+
+	const char kSplitChar = '+';
+	const std::string kSdkMiddleWareApiString = "SDK MW";
+	const std::string kSdkDebugApiString = "SDK Debug";
+	const std::string kSdkPrivateApiString = "SDK Private";
+	const std::string kVenderNintendo = "Nintendo";
+	const std::string kSdkVersionString = "NintendoSdk_nnSdk-";
+
+	ApiType mApiType;
+	std::string mVenderName;
+	std::string mModuleName;
+
+	void resolveApiString(const std::string& full_str);
+};
\ No newline at end of file