diff --git a/crates/rpc/rpc-testing-util/src/debug.rs b/crates/rpc/rpc-testing-util/src/debug.rs
index cc9111821657..14a6b86908b9 100644
--- a/crates/rpc/rpc-testing-util/src/debug.rs
+++ b/crates/rpc/rpc-testing-util/src/debug.rs
@@ -4,12 +4,14 @@ use futures::{Stream, StreamExt};
 use jsonrpsee::core::Error as RpcError;
 use reth_primitives::{BlockId, TxHash, B256};
 use reth_rpc_api::{clients::DebugApiClient, EthApiClient};
-use reth_rpc_types::trace::geth::{GethDebugTracerType, GethDebugTracingOptions};
+use reth_rpc_types::{
+    trace::geth::{GethDebugTracerType, GethDebugTracingOptions},
+    CallRequest,
+};
 use std::{
     pin::Pin,
     task::{Context, Poll},
 };
-
 const NOOP_TRACER: &str = include_str!("../assets/noop-tracer.js");
 const JS_TRACER_TEMPLATE: &str = include_str!("../assets/tracer-template.js");
 
@@ -37,6 +39,19 @@ pub trait DebugApiExt {
     ) -> Result<DebugTraceTransactionsStream<'_>, jsonrpsee::core::Error>
     where
         B: Into<BlockId> + Send;
+    ///  method  for debug_traceCall
+    async fn debug_trace_call_json(
+        &self,
+        request: CallRequest,
+        opts: GethDebugTracingOptions,
+    ) -> Result<serde_json::Value, jsonrpsee::core::Error>;
+
+    ///  method for debug_traceCall using raw JSON strings for the request and options.
+    async fn debug_trace_call_raw_json(
+        &self,
+        request_json: String,
+        opts_json: String,
+    ) -> Result<serde_json::Value, RpcError>;
 }
 
 #[async_trait::async_trait]
@@ -81,6 +96,29 @@ where
 
         Ok(DebugTraceTransactionsStream { stream: Box::pin(stream) })
     }
+    async fn debug_trace_call_json(
+        &self,
+        request: CallRequest,
+        opts: GethDebugTracingOptions,
+    ) -> Result<serde_json::Value, jsonrpsee::core::Error> {
+        let mut params = jsonrpsee::core::params::ArrayParams::new();
+        params.insert(request).unwrap();
+        params.insert(opts).unwrap();
+        self.request("debug_traceCall", params).await
+    }
+
+    async fn debug_trace_call_raw_json(
+        &self,
+        request_json: String,
+        opts_json: String,
+    ) -> Result<serde_json::Value, RpcError> {
+        let request = serde_json::from_str::<CallRequest>(&request_json)
+            .map_err(|e| RpcError::Custom(e.to_string()))?;
+        let opts = serde_json::from_str::<GethDebugTracingOptions>(&opts_json)
+            .map_err(|e| RpcError::Custom(e.to_string()))?;
+
+        self.debug_trace_call_json(request, opts).await
+    }
 }
 
 /// A helper type that can be used to build a javascript tracer.