diff --git a/python/packages/autogen-core/src/autogen_core/metering/__init__.py b/python/packages/autogen-core/src/autogen_core/metering/__init__.py
new file mode 100644
index 000000000000..f6141bfaa88d
--- /dev/null
+++ b/python/packages/autogen-core/src/autogen_core/metering/__init__.py
@@ -0,0 +1,4 @@
+"""Metering utilities for AutoGen."""
+from .primordia import PrimordiaMetering
+
+__all__ = ["PrimordiaMetering"]
diff --git a/python/packages/autogen-core/src/autogen_core/metering/primordia.py b/python/packages/autogen-core/src/autogen_core/metering/primordia.py
new file mode 100644
index 000000000000..f19176ebdd1a
--- /dev/null
+++ b/python/packages/autogen-core/src/autogen_core/metering/primordia.py
@@ -0,0 +1,61 @@
+"""Primordia metering for AutoGen conversations."""
+import hashlib
+import json
+import time
+from typing import Dict, List
+
+
+class PrimordiaMetering:
+    """Track AutoGen conversation costs with MSR receipts.
+
+    Shadow mode by default - no network calls, no blocking.
+
+    Example:
+        >>> from autogen_core.metering import PrimordiaMetering
+        >>> meter = PrimordiaMetering(agent_id="autogen-conv-1")
+        >>> meter.record_message("assistant", 1500, "gpt-4")
+        >>> print(f"Cost: ${meter.get_total_cost():.4f}")
+    """
+
+    def __init__(self, agent_id: str, kernel_url: str = "https://clearing.kaledge.app"):
+        self.agent_id = agent_id
+        self.kernel_url = kernel_url
+        self.receipts: List[Dict] = []
+
+    def record_message(
+        self,
+        sender: str,
+        tokens: int,
+        model: str = "gpt-4",
+    ) -> str:
+        """Record a message as MSR receipt."""
+        unit_price = 300 if "gpt-4" in model.lower() else 50
+        if "claude" in model.lower():
+            unit_price = 100
+
+        receipt = {
+            "meter_version": "0.1",
+            "type": "compute",
+            "agent_id": self.agent_id,
+            "provider": model,
+            "units": tokens,
+            "unit_price_usd_micros": unit_price,
+            "total_usd_micros": tokens * unit_price,
+            "timestamp_ms": int(time.time() * 1000),
+            "metadata": {"framework": "autogen", "sender": sender}
+        }
+
+        receipt_hash = hashlib.sha256(
+            json.dumps(receipt, sort_keys=True).encode()
+        ).hexdigest()[:32]
+
+        self.receipts.append({"hash": receipt_hash, "receipt": receipt})
+        return receipt_hash
+
+    def get_total_cost(self) -> float:
+        """Get total conversation cost in USD."""
+        return sum(r["receipt"]["total_usd_micros"] for r in self.receipts) / 1_000_000
+
+    def get_receipts(self) -> List[Dict]:
+        """Get all receipts for settlement."""
+        return self.receipts