fix (telemetry): stitch oss and platform telemetry identities for python and typescript sdk

Co-authored-by: Younes Slaoui <younes.slaoui@mem0.ai>

mem0/client/main.py

@@ -19,8 +19,8 @@ from mem0.client.types import (
 from mem0.client.utils import api_error_handler
 
 # Exception classes are referenced in docstrings only
-from mem0.memory.setup import get_user_id, setup_config
-from mem0.memory.telemetry import capture_client_event
+from mem0.memory.setup import get_user_id, is_aliased, mark_aliased, read_anon_ids, setup_config
+from mem0.memory.telemetry import capture_client_event, client_telemetry
 
 logger = logging.getLogger(__name__)
 
@@ -33,6 +33,32 @@ setup_config()
 ENTITY_PARAMS = frozenset({"user_id", "agent_id", "app_id", "run_id"})
 
 
+def _maybe_alias_anon_to_email(user_email):
+    """Fire $identify per prior anon ID so PostHog merges them into email.
+
+    Idempotent via telemetry.aliased_pairs: only writes markers when
+    telemetry is actually enabled, so disabling/re-enabling MEM0_TELEMETRY still works.
+    Best-effort: never raises.
+    """
+    if client_telemetry.posthog is None:
+        return
+    if not user_email or "@" not in user_email:
+        return
+    try:
+        anon_ids = read_anon_ids()
+        seen = set()
+        for anon_id in (anon_ids.get("oss"), anon_ids.get("cli")):
+            if not anon_id or anon_id == user_email or anon_id in seen:
+                continue
+            seen.add(anon_id)
+            if is_aliased(anon_id, user_email):
+                continue
+            if client_telemetry.capture_identify(anon_id, user_email):
+                mark_aliased(anon_id, user_email)
+    except Exception as e:
+        logger.debug("Failed to alias anon telemetry to %r: %s", user_email, e)
+
+
 class MemoryClient:
     """Client for interacting with the Mem0 API.
 
@@ -108,6 +134,7 @@ class MemoryClient:
             user_email=self.user_email,
         )
 
+        _maybe_alias_anon_to_email(self.user_email)
         capture_client_event("client.init", self, {"sync_type": "sync"})
 
     def _validate_api_key(self):
@@ -985,6 +1012,7 @@ class AsyncMemoryClient:
             user_email=self.user_email,
         )
 
+        _maybe_alias_anon_to_email(self.user_email)
         capture_client_event("client.init", self, {"sync_type": "async"})
 
     def _validate_api_key(self):