diff --git a/first-app/src/environments.ts b/first-app/src/environments.ts
new file mode 100644
index 0000000..5185815
--- /dev/null
+++ b/first-app/src/environments.ts
@@ -0,0 +1,3 @@
+export const Environments = {
+    URLApi: ""
+}
\ No newline at end of file
diff --git a/first-app/src/services/ClienteService.ts b/first-app/src/services/ClienteService.ts
new file mode 100644
index 0000000..c442144
--- /dev/null
+++ b/first-app/src/services/ClienteService.ts
@@ -0,0 +1,17 @@
+import { Environments } from "../environments"
+
+const {URLApi} = Environments; 
+
+const findPaises = async () => {
+
+    const data = await fetch(`${URLApi}/paises/list`)
+        .then((res)=>res.json())
+        .catch((err)=>err);
+
+    return data;
+
+}
+
+export const ClienteServices = {
+    findPaises
+}
\ No newline at end of file