diff --git a/srcopsmetrics/cli.py b/srcopsmetrics/cli.py
index 9486ac88..b7593758 100755
--- a/srcopsmetrics/cli.py
+++ b/srcopsmetrics/cli.py
@@ -117,6 +117,13 @@ def get_entities_as_list(entities_raw: Optional[str]) -> List[str]:
 @click.option(
     "--metrics", "-m", is_flag=True, required=False, help=f"""Launch Metrics Calculation for specified repository.""",
 )
+@click.option(
+    "--merge",
+    "-m",
+    is_flag=True,
+    required=False,
+    help=f"""Merge all of the aggregated data under given KNOWLEDGE_PATH.""",
+)
 def cli(
     repository: Optional[str],
     organization: Optional[str],
@@ -129,6 +136,7 @@ def cli(
     knowledge_path: str,
     thoth: bool,
     metrics: bool,
+    merge: bool,
 ):
     """Command Line Interface for SrcOpsMetrics."""
     os.environ["IS_LOCAL"] = "True" if is_local else "False"
@@ -151,7 +159,8 @@ def cli(
     for project in repos:
         os.environ["PROJECT"] = project
 
-        if thoth:
+    if thoth:
+        if repository and not merge:
             kebechet_metrics = KebechetMetrics(repository=repos[0], today=True, is_local=is_local)
             kebechet_metrics.evaluate_and_store_kebechet_metrics()
 
@@ -170,6 +179,12 @@ def cli(
             path = Path(f"./srcopsmetrics/metrics/{repos[0]}/issue_scores.json")
             KnowledgeStorage(is_local=is_local).save_knowledge(file_path=path, data=scores_issues)
 
+    if merge:
+        if thoth:
+            KebechetMetrics.merge_kebechet_metrics_today(is_local=is_local)
+        else:
+            raise NotImplementedError
+
 
 if __name__ == "__main__":
     cli(auto_envvar_prefix="MI")
diff --git a/srcopsmetrics/entities/tools/storage.py b/srcopsmetrics/entities/tools/storage.py
index d64f4cad..d169a563 100644
--- a/srcopsmetrics/entities/tools/storage.py
+++ b/srcopsmetrics/entities/tools/storage.py
@@ -64,6 +64,51 @@ def get_ceph_store(self) -> CephStore:
         s3.connect()
         return s3
 
+    def save_data(self, file_path: Path, data: Dict[str, Any]):
+        """Save data as json.
+
+        Arguments:
+            file_path {Path} -- where the knowledge should be saved
+            data {Dict[str, Any]} -- collected knowledge. Should be json compatible
+
+        """
+        _LOGGER.info("Saving knowledge file %s of size %d" % (os.path.basename(file_path), len(data)))
+
+        if not self.is_local:
+            ceph_filename = os.path.relpath(file_path).replace("./", "")
+            s3 = self.get_ceph_store()
+            s3.store_document(data, ceph_filename)
+            _LOGGER.info("Saved on CEPH at %s/%s%s" % (s3.bucket, s3.prefix, ceph_filename))
+        else:
+            with open(file_path, "w") as f:
+                json.dump(data, f)
+            _LOGGER.info("Saved locally at %s" % file_path)
+
+    def load_data(self, file_path: Optional[Path] = None) -> Dict[str, Any]:
+        """Load previously collected repo knowledge. If a repo was not inspected before, create its directory.
+
+        Arguments:
+            file_path {Optional[Path]} -- path to previously stored knowledge from
+                               inspected github repository. If None is passed, the used path will
+                               be :value:`~enums.StoragePath.DEFAULT`
+
+        Returns:
+            Dict[str, Any] -- previusly collected knowledge.
+                            Empty dict if the knowledge does not exist.
+
+        """
+        if file_path is None:
+            raise ValueError("Filepath has to be specified.")
+
+        results = self.load_locally(file_path) if self.is_local else self.load_remotely(file_path)
+
+        if results is None:
+            _LOGGER.info("File does not exist.")
+            return {}
+
+        _LOGGER.info("Data from file %s loaded")
+        return results
+
     @staticmethod
     def load_locally(file_path: Path) -> Optional[Dict[str, Any]]:
         """Load knowledge file from local storage."""
diff --git a/srcopsmetrics/kebechet_metrics.py b/srcopsmetrics/kebechet_metrics.py
index c7f72a3f..3b161afb 100644
--- a/srcopsmetrics/kebechet_metrics.py
+++ b/srcopsmetrics/kebechet_metrics.py
@@ -31,7 +31,7 @@
 from srcopsmetrics import utils
 from srcopsmetrics.entities.issue import Issue
 from srcopsmetrics.entities.pull_request import PullRequest
-from srcopsmetrics.storage import KnowledgeStorage
+from srcopsmetrics.entities.tools.storage import KnowledgeStorage
 
 BOT_NAMES = {"sesheta"}
 
@@ -226,7 +226,44 @@ def evaluate_and_store_kebechet_metrics(self):
                 file_name += f"_{str(curr_day)}"
             file_name += ".json"
 
-            KnowledgeStorage(is_local=self.is_local).save_knowledge(file_path=path.joinpath(file_name), data=stats)
+            KnowledgeStorage(is_local=self.is_local).save_data(file_path=path.joinpath(file_name), data=stats)
+
+    @staticmethod
+    def merge_kebechet_metrics_today(is_local: bool = False):
+        """Merge all the collected metrics under given parent directory."""
+        today = str(datetime.now().date())
+
+        overall_today = {
+            "created_pull_requests": 0,
+            "rejected": 0,
+            "rejected_by_kebechet_bot": 0,
+            "rejected_by_other": 0,
+            "merged": 0,
+            "merged_by_kebechet_bot": 0,
+            "merged_by_other": 0,
+        }
+        ttms = []
+
+        ks = KnowledgeStorage(is_local=is_local)
+        for manager_name in ["update_manager"]:
+
+            file_name = f"kebechet_{manager_name}_{today}.json"
+
+            for path in Path(Path(f"./{_ROOT_DIR}/")).rglob(f"*{file_name}"):
+                if path.name == f"overall_{file_name}":
+                    continue
+                data = ks.load_data(file_path=path)
+                for k in data["daily"]:
+                    if k == "median_ttm":
+                        ttms.append(data["daily"][k])
+                    else:
+                        overall_today[k] += data["daily"][k]
+
+            ttm_median = np.nanmedian(ttms)
+            overall_today["median_ttm"] = ttm_median if not np.isnan(ttm_median) else None
+
+            path = Path(f"./{_ROOT_DIR}/overall_{file_name}")
+            ks.save_data(path, overall_today)
 
     def update_manager(self):
         """Calculate and store update manager metrics."""