diff --git a/contracts/marketplace/Cargo.toml b/contracts/marketplace/Cargo.toml
index 6674601..3f81404 100644
--- a/contracts/marketplace/Cargo.toml
+++ b/contracts/marketplace/Cargo.toml
@@ -11,6 +11,9 @@ scale-info = { version = "2.3", default-features = false, features = ["derive"],
 openbrush = { tag = "3.0.0", git = "https://github.com/727-Ventures/openbrush-contracts", default-features = false, features = ["ownable", "psp34", "reentrancy_guard"] }
 pallet_marketplace = { path = "../../logics", default-features = false }
 
+[dev-dependencies]
+ink_e2e = "4.0.1"
+
 [lib]
 path = "lib.rs"
 
@@ -24,6 +27,7 @@ std = [
     "pallet_marketplace/std",
 ]
 ink-as-dependency = []
+e2e-tests = []
 
 [profile.dev]
 overflow-checks = false
diff --git a/contracts/marketplace/lib.rs b/contracts/marketplace/lib.rs
index 73d6ef1..46c6f02 100644
--- a/contracts/marketplace/lib.rs
+++ b/contracts/marketplace/lib.rs
@@ -331,4 +331,47 @@ pub mod marketplace {
             AccountId::from([0x2; 32])
         }
     }
+
+    /// end-to-end (E2E) or integration tests for marketplace.
+    ///
+    /// When running these you need to make sure that you:
+    /// - Compile the tests with the `e2e-tests` feature flag enabled (`--features e2e-tests`)
+    /// - Are running a Substrate node which contains `pallet-contracts` in the background
+    #[cfg(all(test, feature = "e2e-tests"))]
+    mod e2e_tests {
+        /// Imports all the definitions from the outer scope so we can use them here.
+        use super::*;
+
+        /// A helper function used for calling contract messages.
+        use ink_e2e::build_message;
+
+        /// The End-to-End test `Result` type.
+        type E2EResult<T> = std::result::Result<T, Box<dyn std::error::Error>>;
+
+        /// We test that we can upload and instantiate the contract using its default constructor.
+        #[ink_e2e::test]
+        async fn init_works(mut client: ink_e2e::Client<C, E>) -> E2EResult<()> {
+            // Given
+            let constructor = MarketplaceRef::new(fee_recipient());
+
+            // When
+            let contract_account_id = client
+                .instantiate("marketplace", &ink_e2e::alice(), constructor, 0, None)
+                .await
+                .expect("instantiate failed")
+                .account_id;
+
+            // Then
+            let marketplace_fee = build_message::<MarketplaceRef>(contract_account_id.clone())
+                .call(|marketplace| marketplace.get_marketplace_fee());
+            let marketplace_fee_result = client.call_dry_run(&ink_e2e::alice(), &owner, 0, None).await;
+            assert!(matches!(marketplace_fee_result.return_value(), 100));
+
+            Ok(())
+        }
+
+        fn fee_recipient() -> AccountId {
+            AccountId::from([0x1; 32])
+        }
+    }
 }
diff --git a/contracts/psp34/Cargo.toml b/contracts/psp34/Cargo.toml
index abdfd3d..f1ab7d0 100644
--- a/contracts/psp34/Cargo.toml
+++ b/contracts/psp34/Cargo.toml
@@ -23,4 +23,4 @@ std = [
 
     "openbrush/std",
 ]
-ink-as-dependency = [] 
\ No newline at end of file
+ink-as-dependency = []
diff --git a/contracts/rmrk/Cargo.toml b/contracts/rmrk/Cargo.toml
index 259be1b..41304e0 100644
--- a/contracts/rmrk/Cargo.toml
+++ b/contracts/rmrk/Cargo.toml
@@ -29,4 +29,4 @@ std = [
     "rmrk/std",
 ]
 
-ink-as-dependency = []
\ No newline at end of file
+ink-as-dependency = []