diff --git a/auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/controllers/AuthController.java b/auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/controllers/AuthController.java
index 2007feb..dd9d4a5 100644
--- a/auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/controllers/AuthController.java
+++ b/auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/controllers/AuthController.java
@@ -4,10 +4,32 @@ import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 
+import br.com.rayankonecny.hdcommoslib.models.exceptions.StandardError;
+import br.com.rayankonecny.hdcommoslib.models.requests.AuthenticateRequest;
+import br.com.rayankonecny.hdcommoslib.models.responses.AuthenticationResponse;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.parameters.RequestBody;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.Valid;
+
+import static org.springframework.http.MediaType.APPLICATION_JSON_VALUE;
+
+
 @RequestMapping("/auth")
 public interface AuthController {
 
+  @Operation(summary = "Authenticate user")
+  @ApiResponses(value = {
+      @ApiResponse(responseCode = "200", description = "User authenticated", content = @Content(mediaType = APPLICATION_JSON_VALUE, schema = @Schema(implementation = AuthenticationResponse.class))),
+      @ApiResponse(responseCode = "400", description = "Bad request", content = @Content(mediaType = APPLICATION_JSON_VALUE, schema = @Schema(implementation = StandardError.class))),
+      @ApiResponse(responseCode = "401", description = "Bad credentials", content = @Content(mediaType = APPLICATION_JSON_VALUE, schema = @Schema(implementation = StandardError.class))),
+      @ApiResponse(responseCode = "404", description = "Username not found", content = @Content(mediaType = APPLICATION_JSON_VALUE, schema = @Schema(implementation = StandardError.class))),
+      @ApiResponse(responseCode = "500", description = "Internal server error", content = @Content(mediaType = APPLICATION_JSON_VALUE, schema = @Schema(implementation = StandardError.class))),
+  })
   @PostMapping("/login")
-  ResponseEntity<String> authenticate();
-  
+  ResponseEntity<AuthenticationResponse> authenticate(@Valid @RequestBody final AuthenticateRequest requests);
+
 }
diff --git a/auth-service-api/src/main/resources/application.yml b/auth-service-api/src/main/resources/application.yml
index d908854..d2dccde 100644
--- a/auth-service-api/src/main/resources/application.yml
+++ b/auth-service-api/src/main/resources/application.yml
@@ -1,3 +1,4 @@
 spring:
   application:
     name: "auth-service-api"
+    
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