diff --git a/src/main/java/de/hmmh/pmt/ApiController.java b/src/main/java/de/hmmh/pmt/ApiController.java
index 5d2a8f4..5c07ff5 100644
--- a/src/main/java/de/hmmh/pmt/ApiController.java
+++ b/src/main/java/de/hmmh/pmt/ApiController.java
@@ -19,8 +19,8 @@ import org.springframework.web.client.HttpClientErrorException;
 import org.springframework.web.client.RestClientException;
 
 import java.time.ZoneOffset;
-import java.util.List;
-import java.util.Optional;
+import java.util.*;
+import java.util.stream.Collectors;
 
 @Controller
 @RequestMapping("${openapi.projectManagement.base-path:/api/v1}")
@@ -153,4 +153,30 @@ public class ApiController implements DefaultApi {
         allocationRepository.delete(allocation.get());
         return new ResponseEntity<>(HttpStatus.NO_CONTENT);
     }
+
+    @Override
+    public ResponseEntity<List<EmployeeResponseDTO>> getAListOfAllEmployeesFromASpecificProject(Long id) {
+        if (!projectRepository.existsById(id)) {
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        List<Allocation> allocationsByProject = allocationRepository.findAllByProjectId(id);
+        if (allocationsByProject.isEmpty()) {
+            return new ResponseEntity<>(Collections.emptyList(), HttpStatus.OK);
+        }
+
+        Set<Long> employeeIds = allocationsByProject.stream()
+                .map(Allocation::getEmployeeId)
+                .collect(Collectors.toSet());
+
+        List<EmployeeResponseDTO> employees = apiClientFactory.getEmployeeApi().findAll1().stream()
+                .filter(employeeResponseDTO -> employeeIds.contains(employeeResponseDTO.getId()))
+                .toList();
+
+        // Was wenn, die Liste der Allocation und die Liste der EmployeeResponseDTO nicht die gleiche Anzahl haben.
+        // Das EmployeeResponseDTO wird vom EmployeeService gestellt, sollte man die Daten auf eigenes DTO mappen.
+
+        return new ResponseEntity<>(employees, HttpStatus.OK);
+
+    }
 }