diff --git a/api/api.go b/api/api.go
new file mode 100644
index 0000000..7c457e1
--- /dev/null
+++ b/api/api.go
@@ -0,0 +1,26 @@
+package api
+
+import (
+	"fmt"
+	"regexp"
+)
+
+func google_api(contents string) {
+	re := regexp.MustCompile(`AIza[0-9A-Za-z-_]{35}`)
+	fmt.Println("Google API Key:", re.MatchString(contents))
+}
+
+func twitter_secret(contents string) {
+	re := regexp.MustCompile(`(?i)twitter(.{0,20})?[0-9a-z]{35,44}`)
+	fmt.Println("Twitter Secret:", re.MatchString(contents))
+}
+
+func twilio_api(contents string) {
+	re := regexp.MustCompile(`(?i)twilio(.{0,20})?SK[0-9a-f]{32}`)
+	fmt.Println("Twilio API:", re.MatchString(contents))
+}
+
+func stripe(contents string) {
+	re := regexp.MustCompile(`(?i)twilio(.{0,20})?SK[0-9a-f]{32}`)
+	fmt.Println("Twilio API:", re.MatchString(contents))
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..8527890
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module Git-Secret
+
+go 1.16
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..cd03d13
--- /dev/null
+++ b/main.go
@@ -0,0 +1,121 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"strings"
+)
+
+type Data struct {
+	Sha       string `json:"sha"`
+	URL       string `json:"url"`
+	Tree      []Tree `json:"tree"`
+	Truncated bool   `json:"truncated"`
+}
+type Tree struct {
+	Path string `json:"path"`
+	Mode string `json:"mode"`
+	Type string `json:"type"`
+	Sha  string `json:"sha"`
+	URL  string `json:"url"`
+}
+type ContentFile struct {
+	Name        string `json:"name"`
+	Path        string `json:"path"`
+	Sha         string `json:"sha"`
+	Size        int    `json:"size"`
+	URL         string `json:"url"`
+	HTMLURL     string `json:"html_url"`
+	GitURL      string `json:"git_url"`
+	DownloadURL string `json:"download_url"`
+	Type        string `json:"type"`
+	Content     string `json:"content"`
+	Encoding    string `json:"encoding"`
+	Links       struct {
+		Self string `json:"self"`
+		Git  string `json:"git"`
+		HTML string `json:"html"`
+	} `json:"_links"`
+}
+
+type Branch []struct {
+	Name      string `json:"name"`
+	Commit    Commit `json:"commit"`
+	Protected bool   `json:"protected"`
+}
+type Commit struct {
+	Sha string `json:"sha"`
+	URL string `json:"url"`
+}
+
+var (
+	branch Branch
+	data   Data
+)
+
+func getBranchName(url string) {
+	req, err := http.Get(url)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer req.Body.Close()
+
+	body, _ := ioutil.ReadAll(req.Body)
+
+	err = json.Unmarshal(body, &branch)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for i := range branch {
+		fmt.Printf("%d. %s\n", i+1, branch[i].Name)
+	}
+}
+
+func getListFile(url string) {
+	req, err := http.Get(url)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer req.Body.Close()
+
+	body, _ := ioutil.ReadAll(req.Body)
+
+	err = json.Unmarshal(body, &data)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func main() {
+	var url string
+	var choose_branch int
+
+	fmt.Scanln(&url)
+	splitted := strings.Split(url, "/")
+
+	getBranchName("https://api.github.com/repos/" + splitted[3] + "/" + splitted[4] + "/branches")
+
+	fmt.Scanln(&choose_branch)
+	getListFile("https://api.github.com/repos/" + splitted[3] + "/" + splitted[4] + "/git/trees/" + branch[choose_branch-1].Name + "?recursive=1")
+
+	for i := range data.Tree {
+		if data.Tree[i].Type == "blob" {
+			resp, err := http.Get("https://raw.githubusercontent.com/" + splitted[3] + "/" + splitted[4] + "/" + branch[choose_branch-1].Name + "/" + data.Tree[i].Path)
+			if err != nil {
+				log.Fatalln(err)
+			}
+			defer resp.Body.Close()
+			body, _ := ioutil.ReadAll(resp.Body)
+
+			fmt.Println(data.Tree[i].Path)
+
+			a.google_api(string(body))
+			a.twitter_secret(string(body))
+			a.twilio_api(string(body))
+		}
+	}
+}