diff --git a/client/http-client/src/client.rs b/client/http-client/src/client.rs
index 45a245fab3..4d0280d86d 100644
--- a/client/http-client/src/client.rs
+++ b/client/http-client/src/client.rs
@@ -142,10 +142,18 @@ impl ClientT for HttpClient {
 			}
 		};
 
-		let response_id = response.id.as_number().copied().ok_or(Error::InvalidRequestId)?;
-
-		if response_id == *id.inner() {
-			Ok(response.result)
+		if let Some(response_id) = response.id.as_number().copied() {
+			if response_id == *id.inner() {
+				Ok(response.result)
+			} else {
+				Err(Error::InvalidRequestId)
+			}
+		} else if let Some(response_id) = response.id.as_str() {
+			if response_id == id.inner().to_string() {
+				Ok(response.result)
+			} else {
+				Err(Error::InvalidRequestId)
+			}
 		} else {
 			Err(Error::InvalidRequestId)
 		}
@@ -184,12 +192,26 @@ impl ClientT for HttpClient {
 		// NOTE: `R::default` is placeholder and will be replaced in loop below.
 		let mut responses = vec![R::default(); ordered_requests.len()];
 		for rp in rps {
-			let response_id = rp.id.as_number().copied().ok_or(Error::InvalidRequestId)?;
-			let pos = match request_set.get(&response_id) {
-				Some(pos) => *pos,
-				None => return Err(Error::InvalidRequestId),
+			match rp.id.as_number().copied() {
+				Some(id) => {
+					let pos = match request_set.get(&id) {
+						Some(pos) => *pos,
+						None => return Err(Error::InvalidRequestId),
+					};
+					responses[pos] = rp.result
+				}
+				None => match rp.id.as_str() {
+					Some(s) => {
+						let id: u64 = s.trim().parse().map_err(|_| Error::InvalidRequestId)?;
+						let pos = match request_set.get(&id) {
+							Some(pos) => *pos,
+							None => return Err(Error::InvalidRequestId),
+						};
+						responses[pos] = rp.result
+					}
+					None => return Err(Error::InvalidRequestId),
+				},
 			};
-			responses[pos] = rp.result
 		}
 		Ok(responses)
 	}
diff --git a/client/http-client/src/tests.rs b/client/http-client/src/tests.rs
index 2324443b75..43244ffd3c 100644
--- a/client/http-client/src/tests.rs
+++ b/client/http-client/src/tests.rs
@@ -58,6 +58,16 @@ async fn notification_works() {
 		.unwrap();
 }
 
+#[tokio::test]
+async fn response_with_string_id_works() {
+	let result = run_request_with_response(ok_response("hello".into(), Id::Str("0".to_string())))
+		.with_default_timeout()
+		.await
+		.unwrap()
+		.unwrap();
+	assert_eq!(JsonValue::String("hello".into()), result);
+}
+
 #[tokio::test]
 async fn response_with_wrong_id() {
 	let err = run_request_with_response(ok_response("hello".into(), Id::Num(99)))
@@ -68,6 +78,16 @@ async fn response_with_wrong_id() {
 	assert!(matches!(err, Error::InvalidRequestId));
 }
 
+#[tokio::test]
+async fn response_with_wrong_string_id() {
+	let err = run_request_with_response(ok_response("hello".into(), Id::Str("1".to_string())))
+		.with_default_timeout()
+		.await
+		.unwrap()
+		.unwrap_err();
+	assert!(matches!(err, Error::InvalidRequestId));
+}
+
 #[tokio::test]
 async fn response_method_not_found() {
 	let err =
@@ -113,7 +133,7 @@ async fn subscription_response_to_request() {
 async fn batch_request_works() {
 	let batch_request =
 		vec![("say_hello", rpc_params![]), ("say_goodbye", rpc_params![0_u64, 1, 2]), ("get_swag", None)];
-	let server_response = r#"[{"jsonrpc":"2.0","result":"hello","id":0}, {"jsonrpc":"2.0","result":"goodbye","id":1}, {"jsonrpc":"2.0","result":"here's your swag","id":2}]"#.to_string();
+	let server_response = r#"[{"jsonrpc":"2.0","result":"hello","id":0}, {"jsonrpc":"2.0","result":"goodbye","id":"1"}, {"jsonrpc":"2.0","result":"here's your swag","id":2}]"#.to_string();
 	let response =
 		run_batch_request_with_response(batch_request, server_response).with_default_timeout().await.unwrap().unwrap();
 	assert_eq!(response, vec!["hello".to_string(), "goodbye".to_string(), "here's your swag".to_string()]);