diff --git a/database/database.go b/database/database.go
new file mode 100644
index 0000000..5284c6f
--- /dev/null
+++ b/database/database.go
@@ -0,0 +1,81 @@
+package database
+
+type DB struct {
+	Host     string
+	User     string
+	Password string
+	Name     string
+	Port     string
+}
+
+func SetEnv(env map[string]string) DB {
+	var db DB
+
+	db.Host = env["DB_HOST"]
+	db.User = env["DB_USER"]
+	db.Password = env["DB_PASSWORD"]
+	db.Name = env["DB_NAME"]
+	db.Port = env["DB_PORT"]
+
+	return db
+}
+
+func connect() {
+
+}
+
+func createTables() {
+
+}
+
+func updateTables() {
+
+}
+
+func NewAccount() {
+
+}
+
+func UpdateAccount() {
+
+}
+
+func DeleteAccount() {
+
+}
+
+func GetAccount() {
+
+}
+
+func NewTransaction() {
+
+}
+
+func UpdateTransaction() {
+
+}
+
+func DeleteTransaction() {
+
+}
+
+func GetTransactions() {
+
+}
+
+func NewUser() {
+
+}
+
+func UpdateUser() {
+
+}
+
+func DeleteUser() {
+
+}
+
+func GetUser() {
+
+}
diff --git a/database/models.go b/database/models.go
new file mode 100644
index 0000000..89bd157
--- /dev/null
+++ b/database/models.go
@@ -0,0 +1,20 @@
+package database
+
+type Account struct {
+	Number int
+	Name   string
+	Kind   string
+}
+
+type Transaction struct {
+	Amount        float32
+	Debit         bool
+	OffsetAccount int
+	Account       int
+	Description   string
+}
+
+type User struct {
+	Name     string
+	Password string
+}