diff --git a/apps/coordinator-api/tests/test_integration_agent_marketplace.py b/apps/coordinator-api/tests/test_integration_agent_marketplace.py
new file mode 100644
index 00000000..39419dbb
--- /dev/null
+++ b/apps/coordinator-api/tests/test_integration_agent_marketplace.py
@@ -0,0 +1,59 @@
+"""
+Integration tests for agent and marketplace interaction
+"""
+
+import pytest
+from unittest.mock import Mock, patch
+from fastapi.testclient import TestClient
+
+
+@pytest.mark.integration
+class TestAgentMarketplaceIntegration:
+    """Test integration between agent and marketplace services"""
+
+    @patch('app.routers.agent_router.AITBCHTTPClient')
+    @patch('app.routers.marketplace.AITBCHTTPClient')
+    def test_agent_registers_in_marketplace(self, mock_marketplace_client, mock_agent_client):
+        """Test that an agent can register and appear in marketplace"""
+        # Setup mocks
+        mock_agent = Mock()
+        mock_agent_client.return_value = mock_agent
+        mock_agent.post.return_value = {
+            "id": "agent1",
+            "name": "Agent 1",
+            "status": "registered"
+        }
+
+        mock_marketplace = Mock()
+        mock_marketplace_client.return_value = mock_marketplace
+        mock_marketplace.get.return_value = {
+            "listings": [
+                {"id": 1, "name": "Agent 1", "agent_id": "agent1", "price": 0.50}
+            ],
+            "total": 1
+        }
+
+        # Import and test
+        from app.routers.agent_router import router as agent_router
+        from app.routers.marketplace import router as marketplace_router
+        from app.main import create_app
+        
+        app = create_app()
+        app.include_router(agent_router)
+        app.include_router(marketplace_router)
+        client = TestClient(app)
+        
+        # Register agent
+        response = client.post("/agents", json={
+            "name": "Agent 1",
+            "type": "compute",
+            "capabilities": ["gpu", "inference"]
+        })
+        assert response.status_code == 200
+        
+        # Check marketplace listing
+        response = client.get("/marketplace/listings")
+        assert response.status_code == 200
+        data = response.json()
+        assert data["total"] == 1
+        assert data["listings"][0]["agent_id"] == "agent1"