diff --git a/analytics_mcp/coordinator.py b/analytics_mcp/coordinator.py
index 7d5274b..4b8f711 100644
--- a/analytics_mcp/coordinator.py
+++ b/analytics_mcp/coordinator.py
@@ -42,6 +42,9 @@
     run_realtime_report,
     _run_realtime_report_description,
 )
+from analytics_mcp.tools.reporting.compatibility import (
+    check_compatibility,
+)
 from analytics_mcp.tools.reporting.metadata import (
     get_custom_dimensions_and_metrics,
 )
@@ -62,6 +65,7 @@
     FunctionTool(get_custom_dimensions_and_metrics),
     run_report_with_description,
     run_realtime_report_with_description,
+    FunctionTool(check_compatibility),
 ]
 
 tool_map = {t.name: t for t in tools}
diff --git a/analytics_mcp/tools/reporting/compatibility.py b/analytics_mcp/tools/reporting/compatibility.py
new file mode 100644
index 0000000..852d1c9
--- /dev/null
+++ b/analytics_mcp/tools/reporting/compatibility.py
@@ -0,0 +1,89 @@
+# Copyright 2025 Google LLC All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Tool for checking dimension and metric compatibility."""
+
+from typing import Any, Dict, List
+
+from analytics_mcp.tools.utils import (
+    construct_property_rn,
+    create_data_api_client,
+    proto_to_dict,
+)
+from google.analytics import data_v1beta
+
+
+async def check_compatibility(
+    property_id: int | str,
+    dimensions: List[str] = None,
+    metrics: List[str] = None,
+    dimension_filter: Dict[str, Any] = None,
+    metric_filter: Dict[str, Any] = None,
+) -> Dict[str, Any]:
+    """Checks compatibility of dimensions and metrics for a report.
+
+    This method checks which dimensions and metrics can be added to a
+    report request given the dimensions and metrics already present in
+    the request. The compatibility check is useful for discovering
+    which dimensions and metrics can be used together in a report
+    before running the report.
+
+    Note that the reference docs at
+    https://developers.google.com/analytics/devguides/reporting/data/v1/rest/v1beta/properties/checkCompatibility
+    all use camelCase field names, but field names passed to this
+    method should be in snake_case since the tool is using the protocol
+    buffers (protobuf) format.
+
+    Args:
+        property_id: The Google Analytics property ID. Accepted
+          formats are:
+          - A number
+          - A string consisting of 'properties/' followed by a number
+        dimensions: A list of dimension names to check compatibility
+          for. If omitted, checks compatibility for all dimensions.
+        metrics: A list of metric names to check compatibility for. If
+          omitted, checks compatibility for all metrics.
+        dimension_filter: A Data API FilterExpression
+          (https://developers.google.com/analytics/devguides/reporting/data/v1/rest/v1beta/FilterExpression)
+          to apply to the dimensions.
+        metric_filter: A Data API FilterExpression
+          (https://developers.google.com/analytics/devguides/reporting/data/v1/rest/v1beta/FilterExpression)
+          to apply to the metrics.
+    """
+    request = data_v1beta.CheckCompatibilityRequest(
+        property=construct_property_rn(property_id),
+    )
+
+    if dimensions:
+        request.dimensions = [
+            data_v1beta.Dimension(name=dimension)
+            for dimension in dimensions
+        ]
+
+    if metrics:
+        request.metrics = [
+            data_v1beta.Metric(name=metric) for metric in metrics
+        ]
+
+    if dimension_filter:
+        request.dimension_filter = data_v1beta.FilterExpression(
+            dimension_filter
+        )
+
+    if metric_filter:
+        request.metric_filter = data_v1beta.FilterExpression(metric_filter)
+
+    response = await create_data_api_client().check_compatibility(request)
+
+    return proto_to_dict(response)
diff --git a/tests/compatibility_test.py b/tests/compatibility_test.py
new file mode 100644
index 0000000..b761161
--- /dev/null
+++ b/tests/compatibility_test.py
@@ -0,0 +1,39 @@
+# Copyright 2025 Google LLC All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Test cases for the compatibility module."""
+
+import unittest
+
+from analytics_mcp.tools.reporting import compatibility
+
+
+class TestCheckCompatibility(unittest.TestCase):
+    """Test cases for the check_compatibility tool."""
+
+    def test_check_compatibility_is_importable(self):
+        """Tests that check_compatibility can be imported."""
+        self.assertTrue(
+            callable(compatibility.check_compatibility),
+            "check_compatibility should be a callable function",
+        )
+
+    def test_check_compatibility_is_async(self):
+        """Tests that check_compatibility is an async function."""
+        import asyncio
+
+        self.assertTrue(
+            asyncio.iscoroutinefunction(compatibility.check_compatibility),
+            "check_compatibility should be an async function",
+        )