diff --git a/src/sentry/sentry_metrics/metrics_interface.py b/src/sentry/sentry_metrics/metrics_interface.py
new file mode 100644
index 00000000000000..fbca6050d4cf89
--- /dev/null
+++ b/src/sentry/sentry_metrics/metrics_interface.py
@@ -0,0 +1,64 @@
+from abc import ABC, abstractmethod
+from typing import Mapping, Optional, Sequence, Union
+
+from sentry.sentry_metrics.use_case_id_registry import UseCaseID
+
+
+class GenericMetricsBackend(ABC):
+    @abstractmethod
+    def counter(
+        self,
+        use_case_id: UseCaseID,
+        org_id: int,
+        project_id: int,
+        metric_name: str,
+        value: Union[int, float],
+        unit: Optional[str],
+        tags: Mapping[str, str],
+    ) -> None:
+
+        """
+        Used for emitting a counter metric for internal use cases only.
+        Ensure that the use_case_id passed in has been registered
+        in the UseCaseID enum.
+        """
+
+        raise NotImplementedError()
+
+    @abstractmethod
+    def set(
+        self,
+        use_case_id: UseCaseID,
+        org_id: int,
+        project_id: int,
+        metric_name: str,
+        value: Sequence[int],
+        unit: Optional[str],
+        tags: Mapping[str, str],
+    ) -> None:
+
+        """
+        Used for emitting a set metric for internal use cases only. Can support
+        a sequence of values. Ensure that the use_case_id passed in has
+        been registered in the UseCaseID enum.
+        """
+        raise NotImplementedError()
+
+    @abstractmethod
+    def distribution(
+        self,
+        use_case_id: UseCaseID,
+        org_id: int,
+        project_id: int,
+        metric_name: str,
+        value: Sequence[Union[int, float]],
+        unit: Optional[str],
+        tags: Mapping[str, str],
+    ) -> None:
+
+        """
+        Used for emitting a distribution metric for internal use cases only. Can
+        support a sequence of values. Ensure that the use_case_id passed in
+        has been registered in the UseCaseID enum.
+        """
+        raise NotImplementedError()
diff --git a/src/sentry/sentry_metrics/use_case_id_registry.py b/src/sentry/sentry_metrics/use_case_id_registry.py
new file mode 100644
index 00000000000000..619c59417401b7
--- /dev/null
+++ b/src/sentry/sentry_metrics/use_case_id_registry.py
@@ -0,0 +1,22 @@
+from __future__ import annotations
+
+from enum import Enum
+from typing import Mapping
+
+from sentry.sentry_metrics.configuration import UseCaseKey
+
+
+class UseCaseID(Enum):
+    TRANSACTIONS = "transactions"
+    SESSIONS = "sessions"
+
+
+# UseCaseKey will be renamed to MetricPathKey
+METRIC_PATH_MAPPING: Mapping[UseCaseID, UseCaseKey] = {
+    UseCaseID.SESSIONS: UseCaseKey.RELEASE_HEALTH,
+    UseCaseID.TRANSACTIONS: UseCaseKey.PERFORMANCE,
+}
+
+
+def get_metric_path_from_usecase(use_case: UseCaseID) -> UseCaseKey:
+    return METRIC_PATH_MAPPING[use_case]