diff --git a/README.md b/README.md
index a4c7fee..a1fdf3c 100644
--- a/README.md
+++ b/README.md
@@ -150,7 +150,7 @@ from dakera import DakeraClient, RetryConfig
 client = DakeraClient(base_url="http://your-server:3000", api_key="your-key")
 
 # Cloud (early access)
-client = DakeraClient(base_url="http://localhost:3000", api_key="your-key")
+client = DakeraClient(base_url="http://<your-server-ip>:3000", api_key="your-key")
 
 # With custom retry config
 client = DakeraClient(
diff --git a/pyproject.toml b/pyproject.toml
index 5c29b72..a8b1371 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "dakera"
-version = "0.11.56"
+version = "0.11.57"
 description = "Python SDK for Dakera - AI memory platform"
 readme = "README.md"
 license = {text = "MIT"}
diff --git a/src/dakera/__init__.py b/src/dakera/__init__.py
index e10c534..f28dd30 100644
--- a/src/dakera/__init__.py
+++ b/src/dakera/__init__.py
@@ -48,6 +48,10 @@
     BatchMemoryFilter,
     BatchRecallRequest,
     BatchRecallResponse,
+    BatchStoredMemory,
+    BatchStoreMemoryItem,
+    BatchStoreMemoryRequest,
+    BatchStoreMemoryResponse,
     # CE-12
     CompressResponse,
     ConfigureNamespaceRequest,
@@ -175,12 +179,16 @@
     "RecalledMemory",
     "RecallResponse",
     "ConsolidateResponse",
-    # Batch memory operations (CE-2)
+    # Batch memory operations (CE-2, DAK-5508)
     "BatchMemoryFilter",
     "BatchRecallRequest",
     "BatchRecallResponse",
     "BatchForgetRequest",
     "BatchForgetResponse",
+    "BatchStoreMemoryItem",
+    "BatchStoreMemoryRequest",
+    "BatchStoreMemoryResponse",
+    "BatchStoredMemory",
     # Rate-limit headers (OPS-1)
     "RateLimitHeaders",
     # Session types
diff --git a/src/dakera/client.py b/src/dakera/client.py
index 50ff471..3bd6f52 100644
--- a/src/dakera/client.py
+++ b/src/dakera/client.py
@@ -35,6 +35,8 @@
     BatchForgetResponse,
     BatchRecallRequest,
     BatchRecallResponse,
+    BatchStoreMemoryRequest,
+    BatchStoreMemoryResponse,
     BatchTextQueryResponse,
     # CE-12
     CompressResponse,
@@ -1260,6 +1262,31 @@ def batch_forget(self, request: BatchForgetRequest) -> BatchForgetResponse:
         result = self._request("DELETE", "/v1/memories/forget/batch", data=request.to_dict())
         return BatchForgetResponse.from_dict(result)
 
+    def store_memories_batch(self, request: BatchStoreMemoryRequest) -> BatchStoreMemoryResponse:
+        """Store multiple memories in a single request (DAK-5508).
+
+        Uses ``POST /v1/memories/store/batch``. The server embeds all contents
+        in a single ONNX inference pass, yielding ≥100× throughput vs. N
+        sequential single-store calls. Accepts up to 1 000 memories per call.
+
+        Args:
+            request: Batch store request containing ``agent_id`` and list of
+                :class:`BatchStoreMemoryItem` (1–1000 items).
+
+        Returns:
+            :class:`BatchStoreMemoryResponse` with stored memories and timing.
+
+        Example:
+            >>> items = [
+            ...     BatchStoreMemoryItem("The user prefers dark mode", importance=0.8),
+            ...     BatchStoreMemoryItem("The user is based in Berlin", importance=0.7),
+            ... ]
+            >>> resp = client.store_memories_batch(BatchStoreMemoryRequest("agent-1", items))
+            >>> print(f"Stored {resp.stored_count} memories")
+        """
+        result = self._request("POST", "/v1/memories/store/batch", data=request.to_dict())
+        return BatchStoreMemoryResponse.from_dict(result)
+
     def search_memories(
         self,
         agent_id: str,
diff --git a/src/dakera/models.py b/src/dakera/models.py
index dc4b448..2b8a2c7 100644
--- a/src/dakera/models.py
+++ b/src/dakera/models.py
@@ -1565,6 +1565,117 @@ def from_dict(cls, data: dict[str, Any]) -> "BatchForgetResponse":
         return cls(deleted_count=data.get("deleted_count", 0))
 
 
+@dataclass
+class BatchStoreMemoryItem:
+    """A single memory entry within a :class:`BatchStoreMemoryRequest` (DAK-5508).
+
+    Mirrors :class:`StoreMemoryRequest` but omits ``agent_id`` — supplied at batch level.
+    """
+
+    content: str
+    """Memory content text (required, max 100 000 chars)."""
+    memory_type: str = "episodic"
+    """One of ``"episodic"``, ``"semantic"``, ``"procedural"``, or ``"working"``."""
+    importance: float = 0.5
+    """Importance score 0.0–1.0 (default: 0.5)."""
+    tags: list[str] | None = None
+    """Optional tags to associate with the memory."""
+    session_id: str | None = None
+    """Optional session ID to associate with."""
+    metadata: dict[str, Any] | None = None
+    """Arbitrary metadata dictionary."""
+    ttl_seconds: int | None = None
+    """Optional TTL in seconds."""
+    expires_at: int | None = None
+    """Optional explicit expiry as a Unix timestamp (seconds)."""
+    id: str | None = None
+    """Optional custom ID. Auto-generated if not provided."""
+
+    def to_dict(self) -> dict[str, Any]:
+        d: dict[str, Any] = {
+            "content": self.content,
+            "memory_type": self.memory_type,
+            "importance": self.importance,
+        }
+        if self.tags is not None:
+            d["tags"] = self.tags
+        if self.session_id is not None:
+            d["session_id"] = self.session_id
+        if self.metadata is not None:
+            d["metadata"] = self.metadata
+        if self.ttl_seconds is not None:
+            d["ttl_seconds"] = self.ttl_seconds
+        if self.expires_at is not None:
+            d["expires_at"] = self.expires_at
+        if self.id is not None:
+            d["id"] = self.id
+        return d
+
+
+@dataclass
+class BatchStoreMemoryRequest:
+    """Request body for ``POST /v1/memories/store/batch`` (DAK-5508).
+
+    Accepts up to 1 000 memories per call. The server embeds all contents in a
+    single ONNX inference pass and upserts them in one write, yielding ≥100×
+    throughput vs. N sequential single-store calls.
+    """
+
+    agent_id: str
+    """Agent namespace to store the memories in."""
+    memories: list[BatchStoreMemoryItem]
+    """Memories to store (1–1000 items)."""
+
+    def to_dict(self) -> dict[str, Any]:
+        return {
+            "agent_id": self.agent_id,
+            "memories": [m.to_dict() for m in self.memories],
+        }
+
+
+@dataclass
+class BatchStoredMemory:
+    """A single stored memory returned in a :class:`BatchStoreMemoryResponse`."""
+
+    id: str
+    content: str
+    agent_id: str
+    tags: list[str]
+    importance: float
+    created_at: int
+
+    @classmethod
+    def from_dict(cls, data: dict[str, Any]) -> "BatchStoredMemory":
+        return cls(
+            id=data["id"],
+            content=data["content"],
+            agent_id=data["agent_id"],
+            tags=data.get("tags", []),
+            importance=data.get("importance", 0.5),
+            created_at=data.get("created_at", 0),
+        )
+
+
+@dataclass
+class BatchStoreMemoryResponse:
+    """Response from ``POST /v1/memories/store/batch``."""
+
+    stored: list[BatchStoredMemory]
+    """Stored memories in the same order as the request items."""
+    stored_count: int
+    """Number of memories successfully stored."""
+    total_embedding_time_ms: int
+    """Time spent on ONNX embedding for the entire batch (milliseconds)."""
+
+    @classmethod
+    def from_dict(cls, data: dict[str, Any]) -> "BatchStoreMemoryResponse":
+        return cls(
+            stored=[BatchStoredMemory.from_dict(m) for m in data.get("stored", [])],
+            stored_count=data.get("stored_count", 0),
+            total_embedding_time_ms=data.get("total_embedding_time_ms", 0),
+        )
+
+
 # ============================================================================
 # Memory Knowledge Graph Types (CE-5 / SDK-9)
 # ============================================================================
diff --git a/tests/test_client.py b/tests/test_client.py
index 4dfd786..070f05f 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -829,6 +829,81 @@ def test_batch_recall_response_from_dict(self):
         assert resp.filtered == 0
         assert resp.memories == []
 
+    def test_store_memories_batch_sends_correct_request(self, client, mock_responses):
+        """store_memories_batch() POSTs to /v1/memories/store/batch."""
+        from dakera import BatchStoreMemoryItem, BatchStoreMemoryRequest, BatchStoreMemoryResponse
+
+        mock_responses.add(
+            responses.POST,
+            "http://localhost:3000/v1/memories/store/batch",
+            json={
+                "stored": [
+                    {
+                        "id": "mem-1", "content": "Dark mode", "agent_id": "agent-1",
+                        "tags": [], "importance": 0.8, "created_at": 1700000000,
+                    },
+                    {
+                        "id": "mem-2", "content": "Berlin user", "agent_id": "agent-1",
+                        "tags": [], "importance": 0.7, "created_at": 1700000001,
+                    },
+                ],
+                "stored_count": 2,
+                "total_embedding_time_ms": 42,
+            },
+            status=200,
+        )
+
+        items = [
+            BatchStoreMemoryItem("Dark mode", importance=0.8),
+            BatchStoreMemoryItem("Berlin user", importance=0.7),
+        ]
+        req = BatchStoreMemoryRequest("agent-1", items)
+        resp = client.store_memories_batch(req)
+
+        assert isinstance(resp, BatchStoreMemoryResponse)
+        assert resp.stored_count == 2
+        assert len(resp.stored) == 2
+        assert resp.stored[0].id == "mem-1"
+        assert resp.total_embedding_time_ms == 42
+        assert mock_responses.calls[0].request.method == "POST"
+        assert "/v1/memories/store/batch" in mock_responses.calls[0].request.url
+
+    def test_batch_store_memory_item_to_dict(self):
+        """BatchStoreMemoryItem.to_dict() serializes all fields correctly."""
+        from dakera import BatchStoreMemoryItem
+
+        item = BatchStoreMemoryItem(
+            content="Test memory",
+            importance=0.9,
+            tags=["test", "qa"],
+            memory_type="semantic",
+            session_id="sess-1",
+        )
+        d = item.to_dict()
+        assert d["content"] == "Test memory"
+        assert d["importance"] == 0.9
+        assert d["tags"] == ["test", "qa"]
+        assert d["memory_type"] == "semantic"
+        assert d["session_id"] == "sess-1"
+
+    def test_batch_store_memory_response_from_dict(self):
+        """BatchStoreMemoryResponse.from_dict() parses stored_count and memories."""
+        from dakera import BatchStoreMemoryResponse
+
+        resp = BatchStoreMemoryResponse.from_dict({
+            "stored": [
+                {
+                    "id": "x", "content": "c", "agent_id": "a",
+                    "tags": [], "importance": 0.5, "created_at": 0,
+                },
+            ],
+            "stored_count": 1,
+            "total_embedding_time_ms": 10,
+        })
+        assert resp.stored_count == 1
+        assert resp.total_embedding_time_ms == 10
+        assert resp.stored[0].id == "x"
+
 
 class TestRateLimitHeaders:
     """Tests for OPS-1 RateLimitHeaders (v0.7.0)."""