diff --git a/bridges/bin/millau/node/Cargo.toml b/bridges/bin/millau/node/Cargo.toml
index e035bbd224..9684799f2f 100644
--- a/bridges/bin/millau/node/Cargo.toml
+++ b/bridges/bin/millau/node/Cargo.toml
@@ -27,6 +27,7 @@ pallet-message-lane-rpc = { path = "../../../modules/message-lane/rpc" }
 frame-benchmarking = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
 frame-benchmarking-cli = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
 node-inspect = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
+pallet-transaction-payment-rpc = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
 sc-basic-authorship = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
 sc-cli = { git = "https://github.com/paritytech/substrate.git", branch = "master", features = ["wasmtime"] }
 sc-client-api = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
diff --git a/bridges/bin/millau/node/src/service.rs b/bridges/bin/millau/node/src/service.rs
index 2f72e5717f..0729353af3 100644
--- a/bridges/bin/millau/node/src/service.rs
+++ b/bridges/bin/millau/node/src/service.rs
@@ -224,6 +224,7 @@ pub fn new_full(mut config: Configuration) -> Result<TaskManager, ServiceError>
 		}
 
 		use pallet_message_lane_rpc::{MessageLaneApi, MessageLaneRpcHandler};
+		use pallet_transaction_payment_rpc::{TransactionPayment, TransactionPaymentApi};
 		use sc_finality_grandpa_rpc::{GrandpaApi, GrandpaRpcHandler};
 		use sc_rpc::DenyUnsafe;
 		use substrate_frame_rpc_system::{FullSystem, SystemApi};
@@ -246,6 +247,9 @@ pub fn new_full(mut config: Configuration) -> Result<TaskManager, ServiceError>
 				pool.clone(),
 				DenyUnsafe::No,
 			)));
+			io.extend_with(TransactionPaymentApi::to_delegate(TransactionPayment::new(
+				client.clone(),
+			)));
 			io.extend_with(GrandpaApi::to_delegate(GrandpaRpcHandler::new(
 				shared_authority_set.clone(),
 				shared_voter_state.clone(),
@@ -257,7 +261,6 @@ pub fn new_full(mut config: Configuration) -> Result<TaskManager, ServiceError>
 				backend.clone(),
 				Arc::new(MillauMessageLaneKeys),
 			)));
-
 			io
 		})
 	};
diff --git a/bridges/bin/millau/runtime/Cargo.toml b/bridges/bin/millau/runtime/Cargo.toml
index 58ce4f127a..204beee998 100644
--- a/bridges/bin/millau/runtime/Cargo.toml
+++ b/bridges/bin/millau/runtime/Cargo.toml
@@ -40,6 +40,7 @@ pallet-session = { git = "https://github.com/paritytech/substrate.git", branch =
 pallet-sudo = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
 pallet-timestamp = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
 pallet-transaction-payment = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
+pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", branch = "master" , default-features = false }
 sp-api = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
 sp-block-builder = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
 sp-consensus-aura = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
@@ -84,6 +85,7 @@ std = [
 	"pallet-sudo/std",
 	"pallet-timestamp/std",
 	"pallet-transaction-payment/std",
+	"pallet-transaction-payment-rpc-runtime-api/std",
 	"serde",
 	"sp-api/std",
 	"sp-block-builder/std",
diff --git a/bridges/bin/millau/runtime/src/lib.rs b/bridges/bin/millau/runtime/src/lib.rs
index 0add4f3235..d1ef18eb3c 100644
--- a/bridges/bin/millau/runtime/src/lib.rs
+++ b/bridges/bin/millau/runtime/src/lib.rs
@@ -37,6 +37,7 @@ use crate::rialto_messages::{ToRialtoMessagePayload, WithRialtoMessageBridge};
 use bridge_runtime_common::messages::{source::estimate_message_dispatch_and_delivery_fee, MessageBridge};
 use codec::Decode;
 use pallet_grandpa::{fg_primitives, AuthorityId as GrandpaId, AuthorityList as GrandpaAuthorityList};
+use pallet_transaction_payment::{FeeDetails, RuntimeDispatchInfo};
 use sp_api::impl_runtime_apis;
 use sp_consensus_aura::sr25519::AuthorityId as AuraId;
 use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
@@ -494,6 +495,18 @@ impl_runtime_apis! {
 		}
 	}
 
+	impl pallet_transaction_payment_rpc_runtime_api::TransactionPaymentApi<
+		Block,
+		Balance,
+	> for Runtime {
+		fn query_info(uxt: <Block as BlockT>::Extrinsic, len: u32) -> RuntimeDispatchInfo<Balance> {
+			TransactionPayment::query_info(uxt, len)
+		}
+		fn query_fee_details(uxt: <Block as BlockT>::Extrinsic, len: u32) -> FeeDetails<Balance> {
+			TransactionPayment::query_fee_details(uxt, len)
+		}
+	}
+
 	impl sp_session::SessionKeys<Block> for Runtime {
 		fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {
 			SessionKeys::generate(seed)
diff --git a/bridges/bin/rialto/node/Cargo.toml b/bridges/bin/rialto/node/Cargo.toml
index 9d3e3fc16c..e8095543ee 100644
--- a/bridges/bin/rialto/node/Cargo.toml
+++ b/bridges/bin/rialto/node/Cargo.toml
@@ -27,6 +27,7 @@ rialto-runtime = { path = "../runtime" }
 frame-benchmarking = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
 frame-benchmarking-cli = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
 node-inspect = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
+pallet-transaction-payment-rpc = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
 sc-basic-authorship = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
 sc-cli = { git = "https://github.com/paritytech/substrate.git", branch = "master", features = ["wasmtime"] }
 sc-client-api = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
diff --git a/bridges/bin/rialto/node/src/service.rs b/bridges/bin/rialto/node/src/service.rs
index 67ca185137..5c5ff92e88 100644
--- a/bridges/bin/rialto/node/src/service.rs
+++ b/bridges/bin/rialto/node/src/service.rs
@@ -224,6 +224,7 @@ pub fn new_full(mut config: Configuration) -> Result<TaskManager, ServiceError>
 		}
 
 		use pallet_message_lane_rpc::{MessageLaneApi, MessageLaneRpcHandler};
+		use pallet_transaction_payment_rpc::{TransactionPayment, TransactionPaymentApi};
 		use sc_finality_grandpa_rpc::{GrandpaApi, GrandpaRpcHandler};
 		use sc_rpc::DenyUnsafe;
 		use substrate_frame_rpc_system::{FullSystem, SystemApi};
@@ -246,6 +247,9 @@ pub fn new_full(mut config: Configuration) -> Result<TaskManager, ServiceError>
 				pool.clone(),
 				DenyUnsafe::No,
 			)));
+			io.extend_with(TransactionPaymentApi::to_delegate(TransactionPayment::new(
+				client.clone(),
+			)));
 			io.extend_with(GrandpaApi::to_delegate(GrandpaRpcHandler::new(
 				shared_authority_set.clone(),
 				shared_voter_state.clone(),
diff --git a/bridges/bin/rialto/runtime/Cargo.toml b/bridges/bin/rialto/runtime/Cargo.toml
index d69e241870..d93f5d2b0a 100644
--- a/bridges/bin/rialto/runtime/Cargo.toml
+++ b/bridges/bin/rialto/runtime/Cargo.toml
@@ -48,6 +48,7 @@ pallet-session = { git = "https://github.com/paritytech/substrate.git", branch =
 pallet-sudo = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
 pallet-timestamp = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
 pallet-transaction-payment = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
+pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", branch = "master" , default-features = false }
 sp-api = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
 sp-block-builder = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
 sp-consensus-aura = { git = "https://github.com/paritytech/substrate.git", branch = "master" , default-features = false }
@@ -102,6 +103,7 @@ std = [
 	"pallet-sudo/std",
 	"pallet-timestamp/std",
 	"pallet-transaction-payment/std",
+	"pallet-transaction-payment-rpc-runtime-api/std",
 	"serde",
 	"sp-api/std",
 	"sp-block-builder/std",
diff --git a/bridges/bin/rialto/runtime/src/lib.rs b/bridges/bin/rialto/runtime/src/lib.rs
index 18c88a1886..6410e82422 100644
--- a/bridges/bin/rialto/runtime/src/lib.rs
+++ b/bridges/bin/rialto/runtime/src/lib.rs
@@ -43,6 +43,7 @@ use crate::millau_messages::{ToMillauMessagePayload, WithMillauMessageBridge};
 use bridge_runtime_common::messages::{source::estimate_message_dispatch_and_delivery_fee, MessageBridge};
 use codec::Decode;
 use pallet_grandpa::{fg_primitives, AuthorityId as GrandpaId, AuthorityList as GrandpaAuthorityList};
+use pallet_transaction_payment::{FeeDetails, RuntimeDispatchInfo};
 use sp_api::impl_runtime_apis;
 use sp_consensus_aura::sr25519::AuthorityId as AuraId;
 use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
@@ -691,6 +692,18 @@ impl_runtime_apis! {
 		}
 	}
 
+	impl pallet_transaction_payment_rpc_runtime_api::TransactionPaymentApi<
+		Block,
+		Balance,
+	> for Runtime {
+		fn query_info(uxt: <Block as BlockT>::Extrinsic, len: u32) -> RuntimeDispatchInfo<Balance> {
+			TransactionPayment::query_info(uxt, len)
+		}
+		fn query_fee_details(uxt: <Block as BlockT>::Extrinsic, len: u32) -> FeeDetails<Balance> {
+			TransactionPayment::query_fee_details(uxt, len)
+		}
+	}
+
 	impl sp_session::SessionKeys<Block> for Runtime {
 		fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {
 			SessionKeys::generate(seed)