diff --git a/Cargo.lock b/Cargo.lock
index 9776acc1e0ad..d7d1baa2730d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3198,6 +3198,7 @@ dependencies = [
  "pallet-multisig",
  "pallet-nomination-pools",
  "pallet-nomination-pools-benchmarking",
+ "pallet-nomination-pools-runtime-api",
  "pallet-offences",
  "pallet-offences-benchmarking",
  "pallet-preimage",
@@ -5263,6 +5264,16 @@ dependencies = [
  "sp-std",
 ]
 
+[[package]]
+name = "pallet-nomination-pools-runtime-api"
+version = "1.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=master#531d7c3a5b26f5849aa6e23518c45a56d67faccb"
+dependencies = [
+ "parity-scale-codec",
+ "sp-api",
+ "sp-std",
+]
+
 [[package]]
 name = "pallet-offences"
 version = "4.0.0-dev"
@@ -12204,6 +12215,7 @@ dependencies = [
  "pallet-multisig",
  "pallet-nomination-pools",
  "pallet-nomination-pools-benchmarking",
+ "pallet-nomination-pools-runtime-api",
  "pallet-offences",
  "pallet-offences-benchmarking",
  "pallet-preimage",
diff --git a/runtime/kusama/Cargo.toml b/runtime/kusama/Cargo.toml
index 8f417a9a4f96..ddd7f0bb9bc3 100644
--- a/runtime/kusama/Cargo.toml
+++ b/runtime/kusama/Cargo.toml
@@ -45,6 +45,7 @@ pallet-bounties = { git = "https://github.com/paritytech/substrate", branch = "m
 pallet-child-bounties = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
+pallet-nomination-pools-runtime-api = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-collective = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-democracy = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-elections-phragmen = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
@@ -148,6 +149,7 @@ std = [
 	"pallet-membership/std",
 	"pallet-multisig/std",
 	"pallet-nomination-pools/std",
+	"pallet-nomination-pools-runtime-api/std",
 	"pallet-offences/std",
 	"pallet-preimage/std",
 	"pallet-proxy/std",
diff --git a/runtime/kusama/src/lib.rs b/runtime/kusama/src/lib.rs
index da1a7c8896f1..72c10da9b9ed 100644
--- a/runtime/kusama/src/lib.rs
+++ b/runtime/kusama/src/lib.rs
@@ -2010,6 +2010,16 @@ sp_api::impl_runtime_apis! {
 		}
 	}
 
+	impl pallet_nomination_pools_runtime_api::NominationPoolsApi<
+		Block,
+		AccountId,
+		Balance,
+	> for Runtime {
+		fn pending_rewards(member: AccountId) -> Balance {
+			NominationPools::pending_rewards(member)
+		}
+	}
+
 	#[cfg(feature = "try-runtime")]
 	impl frame_try_runtime::TryRuntime<Block> for Runtime {
 		fn on_runtime_upgrade() -> (Weight, Weight) {
diff --git a/runtime/westend/Cargo.toml b/runtime/westend/Cargo.toml
index bf1e97636124..747bd331de13 100644
--- a/runtime/westend/Cargo.toml
+++ b/runtime/westend/Cargo.toml
@@ -68,6 +68,7 @@ pallet-sudo = { git = "https://github.com/paritytech/substrate", branch = "maste
 pallet-timestamp = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
+pallet-nomination-pools-runtime-api = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-treasury = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-utility = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-vesting = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
@@ -140,6 +141,7 @@ std = [
 	"beefy-primitives/std",
 	"pallet-multisig/std",
 	"pallet-nomination-pools/std",
+	"pallet-nomination-pools-runtime-api/std",
 	"pallet-offences/std",
 	"pallet-preimage/std",
 	"pallet-proxy/std",
diff --git a/runtime/westend/src/lib.rs b/runtime/westend/src/lib.rs
index e3493c347fed..18a8a809c303 100644
--- a/runtime/westend/src/lib.rs
+++ b/runtime/westend/src/lib.rs
@@ -1578,6 +1578,16 @@ sp_api::impl_runtime_apis! {
 		}
 	}
 
+	impl pallet_nomination_pools_runtime_api::NominationPoolsApi<
+		Block,
+		AccountId,
+		Balance,
+	> for Runtime {
+		fn pending_rewards(member: AccountId) -> Balance {
+			NominationPools::pending_rewards(member)
+		}
+	}
+
 	#[cfg(feature = "try-runtime")]
 	impl frame_try_runtime::TryRuntime<Block> for Runtime {
 		fn on_runtime_upgrade() -> (frame_support::weights::Weight, frame_support::weights::Weight) {