diff --git a/Cargo.lock b/Cargo.lock
index 5e2ec17199542..a3d35ea35da72 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -14062,6 +14062,7 @@ dependencies = [
  "axum 0.7.5",
  "backoff",
  "bb8",
+ "bytes",
  "chrono",
  "clap",
  "diesel",
@@ -14074,6 +14075,7 @@ dependencies = [
  "serde",
  "sui-field-count",
  "sui-pg-db",
+ "sui-rpc-api",
  "sui-storage",
  "sui-types",
  "telemetry-subscribers",
@@ -15082,6 +15084,7 @@ dependencies = [
  "anyhow",
  "async-trait",
  "axum 0.7.5",
+ "base64 0.22.1",
  "bcs",
  "bytes",
  "diffy",
diff --git a/crates/sui-indexer-alt-framework/Cargo.toml b/crates/sui-indexer-alt-framework/Cargo.toml
index 2c9a172be8efb..8fa74aee2ff9e 100644
--- a/crates/sui-indexer-alt-framework/Cargo.toml
+++ b/crates/sui-indexer-alt-framework/Cargo.toml
@@ -33,6 +33,8 @@ sui-field-count.workspace = true
 sui-pg-db.workspace = true
 sui-storage.workspace = true
 sui-types.workspace = true
+sui-rpc-api.workspace = true
+bytes = "1.8.0"
 
 [dev-dependencies]
 rand.workspace = true
diff --git a/crates/sui-indexer-alt-framework/src/ingestion/client.rs b/crates/sui-indexer-alt-framework/src/ingestion/client.rs
index 25fac78a162ba..03f5919b90ca9 100644
--- a/crates/sui-indexer-alt-framework/src/ingestion/client.rs
+++ b/crates/sui-indexer-alt-framework/src/ingestion/client.rs
@@ -3,6 +3,7 @@
 
 use crate::ingestion::local_client::LocalIngestionClient;
 use crate::ingestion::remote_client::RemoteIngestionClient;
+use crate::ingestion::rpc_client::RpcIngestionClient;
 use crate::ingestion::Error as IngestionError;
 use crate::ingestion::Result as IngestionResult;
 use crate::metrics::CheckpointLagMetricReporter;
@@ -76,6 +77,18 @@ impl IngestionClient {
         }
     }
 
+    pub(crate) fn new_rpc(
+        url: Url,
+        basic_auth: Option<(String, String)>,
+        metrics: Arc<IndexerMetrics>,
+    ) -> IngestionResult<Self> {
+        let client = Arc::new(
+            RpcIngestionClient::new(url, basic_auth)
+                .map_err(|e| IngestionError::RpcClientError(e))?,
+        );
+        Ok(Self::new_impl(client, metrics))
+    }
+
     /// Fetch checkpoint data by sequence number.
     ///
     /// This function behaves like `IngestionClient::fetch`, but will repeatedly retry the fetch if
diff --git a/crates/sui-indexer-alt-framework/src/ingestion/error.rs b/crates/sui-indexer-alt-framework/src/ingestion/error.rs
index 17cafe495aa80..0265096f28f66 100644
--- a/crates/sui-indexer-alt-framework/src/ingestion/error.rs
+++ b/crates/sui-indexer-alt-framework/src/ingestion/error.rs
@@ -22,4 +22,7 @@ pub enum Error {
 
     #[error("Shutdown signal received, stopping ingestion service")]
     Cancelled,
+
+    #[error(transparent)]
+    RpcClientError(anyhow::Error),
 }
diff --git a/crates/sui-indexer-alt-framework/src/ingestion/mod.rs b/crates/sui-indexer-alt-framework/src/ingestion/mod.rs
index 036c3ed0185e9..d57a381a11757 100644
--- a/crates/sui-indexer-alt-framework/src/ingestion/mod.rs
+++ b/crates/sui-indexer-alt-framework/src/ingestion/mod.rs
@@ -26,6 +26,7 @@ pub mod error;
 mod local_client;
 mod regulator;
 mod remote_client;
+mod rpc_client;
 #[cfg(test)]
 mod test_utils;
 
@@ -39,6 +40,14 @@ pub struct ClientArgs {
     /// If both remote_store_url and local_ingestion_path are provided, remote_store_url will be used.
     #[clap(long, required = true, group = "source")]
     pub local_ingestion_path: Option<PathBuf>,
+
+    /// Path to the local ingestion directory.
+    /// If all remote_store_url, local_ingestion_path and rpc_api_url are provided, remote_store_url will be used.
+    #[clap(long, required = true, group = "source")]
+    pub rpc_api_url: Option<Url>,
+
+    #[clap(long)]
+    pub basic_auth: Option<String>,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
@@ -82,8 +91,15 @@ impl IngestionService {
             IngestionClient::new_remote(url.clone(), metrics.clone())?
         } else if let Some(path) = args.local_ingestion_path.as_ref() {
             IngestionClient::new_local(path.clone(), metrics.clone())
+        } else if let Some(rpc_api_url) = args.rpc_api_url.as_ref() {
+            let basic_auth = args.basic_auth.map(|s| {
+                let split = s.split(":").collect::<Vec<_>>();
+                assert_eq!(2, split.len());
+                (split[0].to_string(), split[1].to_string())
+            });
+            IngestionClient::new_rpc(rpc_api_url.clone(), basic_auth, metrics.clone())?
         } else {
-            panic!("Either remote_store_url or local_ingestion_path must be provided");
+            panic!("One of remote_store_url, local_ingestion_path or rpc_api_url must be provided");
         };
 
         let subscribers = Vec::new();
@@ -204,6 +220,8 @@ mod tests {
             ClientArgs {
                 remote_store_url: Some(Url::parse(&uri).unwrap()),
                 local_ingestion_path: None,
+                rpc_api_url: None,
+                basic_auth: None,
             },
             IngestionConfig {
                 checkpoint_buffer_size,
diff --git a/crates/sui-indexer-alt-framework/src/ingestion/rpc_client.rs b/crates/sui-indexer-alt-framework/src/ingestion/rpc_client.rs
new file mode 100644
index 0000000000000..a1349f7acbac6
--- /dev/null
+++ b/crates/sui-indexer-alt-framework/src/ingestion/rpc_client.rs
@@ -0,0 +1,49 @@
+// Copyright (c) Mysten Labs, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::ingestion::client::{FetchError, FetchResult, IngestionClientTrait};
+use anyhow::anyhow;
+use bytes::Bytes;
+use sui_rpc_api::Client;
+use sui_storage::blob::{Blob, BlobEncoding};
+use url::Url;
+
+pub(crate) struct RpcIngestionClient {
+    client: Client,
+}
+
+impl RpcIngestionClient {
+    pub(crate) fn new(
+        url: Url,
+        basic_auth: Option<(String, String)>,
+    ) -> Result<Self, anyhow::Error> {
+        let mut client = Client::new(url.to_string())?;
+        if let Some(basic_auth) = basic_auth {
+            client = client.with_basic_auth(basic_auth)?;
+        }
+        Ok(Self { client })
+    }
+}
+
+#[async_trait::async_trait]
+impl IngestionClientTrait for RpcIngestionClient {
+    async fn fetch(&self, checkpoint: u64) -> FetchResult {
+        let data = self
+            .client
+            .get_full_checkpoint(checkpoint)
+            .await
+            .map_err(|e| {
+                if e.message().contains("not found") {
+                    FetchError::NotFound
+                } else {
+                    FetchError::Transient {
+                        reason: "io_error",
+                        error: anyhow!(e),
+                    }
+                }
+            })?;
+        Ok(Bytes::from(
+            Blob::encode(&data, BlobEncoding::Bcs)?.to_bytes(),
+        ))
+    }
+}
diff --git a/crates/sui-indexer-alt-framework/src/lib.rs b/crates/sui-indexer-alt-framework/src/lib.rs
index ac4d990268295..413f6fd2a78e7 100644
--- a/crates/sui-indexer-alt-framework/src/lib.rs
+++ b/crates/sui-indexer-alt-framework/src/lib.rs
@@ -185,6 +185,8 @@ impl Indexer {
             ClientArgs {
                 remote_store_url: None,
                 local_ingestion_path: Some(tempdir().unwrap().into_path()),
+                rpc_api_url: None,
+                basic_auth: None,
             },
             IngestionConfig::default(),
             &MIGRATIONS,
diff --git a/crates/sui-rpc-api/Cargo.toml b/crates/sui-rpc-api/Cargo.toml
index 60e141c9ce034..d46c443173b72 100644
--- a/crates/sui-rpc-api/Cargo.toml
+++ b/crates/sui-rpc-api/Cargo.toml
@@ -40,6 +40,7 @@ tonic.workspace = true
 prost.workspace = true
 prost-types = "0.13.3"
 bytes.workspace = true
+base64 = "0.22.1"
 
 tonic-health.workspace = true
 tonic-reflection.workspace = true
diff --git a/crates/sui-rpc-api/src/client/mod.rs b/crates/sui-rpc-api/src/client/mod.rs
index 22c5739d420ba..bf1ef56d705b8 100644
--- a/crates/sui-rpc-api/src/client/mod.rs
+++ b/crates/sui-rpc-api/src/client/mod.rs
@@ -2,6 +2,8 @@
 // SPDX-License-Identifier: Apache-2.0
 
 mod response_ext;
+
+use base64::Engine;
 pub use response_ext::ResponseExt;
 
 pub mod sdk;
@@ -9,7 +11,7 @@ use sdk::BoxError;
 
 pub use reqwest;
 use tap::Pipe;
-use tonic::metadata::MetadataMap;
+use tonic::metadata::{Ascii, MetadataMap, MetadataValue};
 
 use crate::proto::node::node_client::NodeClient;
 use crate::proto::node::{
@@ -25,16 +27,20 @@ use sui_types::messages_checkpoint::{CertifiedCheckpointSummary, CheckpointSeque
 use sui_types::object::Object;
 use sui_types::transaction::Transaction;
 
-pub type Result<T, E = tonic::Status> = std::result::Result<T, E>;
+pub type Result<T, E = Status> = std::result::Result<T, E>;
 
+use tonic::codegen::InterceptedService;
+use tonic::service::Interceptor;
 use tonic::transport::channel::ClientTlsConfig;
-use tonic::Status;
+use tonic::transport::Channel;
+use tonic::{Request, Status};
 
 #[derive(Clone)]
 pub struct Client {
     #[allow(unused)]
     uri: http::Uri,
-    channel: tonic::transport::Channel,
+    channel: Channel,
+    basic_auth_value: Option<MetadataValue<Ascii>>,
 }
 
 impl Client {
@@ -56,11 +62,31 @@ impl Client {
         }
         let channel = endpoint.connect_lazy();
 
-        Ok(Self { uri, channel })
+        Ok(Self {
+            uri,
+            channel,
+            basic_auth_value: None,
+        })
     }
 
-    pub fn raw_client(&self) -> NodeClient<tonic::transport::Channel> {
-        NodeClient::new(self.channel.clone())
+    pub fn with_basic_auth(mut self, (username, password): (String, String)) -> Result<Self> {
+        let auth =
+            base64::engine::general_purpose::STANDARD.encode(format!("{}:{}", username, password));
+        let value: MetadataValue<Ascii> = format!("Basic {}", auth)
+            .parse()
+            .map_err(Into::into)
+            .map_err(Status::from_error)?;
+        self.basic_auth_value = Some(value);
+        Ok(self)
+    }
+
+    pub fn raw_client(&self) -> NodeClient<InterceptedService<Channel, BasicAuthInterceptor>> {
+        NodeClient::with_interceptor(
+            self.channel.clone(),
+            BasicAuthInterceptor {
+                basic_auth: self.basic_auth_value.clone(),
+            },
+        )
     }
 
     pub async fn get_latest_checkpoint(&self) -> Result<CertifiedCheckpointSummary> {
@@ -193,7 +219,7 @@ impl Client {
         let request = crate::proto::node::ExecuteTransactionRequest {
             transaction: None,
             transaction_bcs: Some(
-                crate::proto::types::Bcs::serialize(&transaction.inner().intent_message.value)
+                Bcs::serialize(&transaction.inner().intent_message.value)
                     .map_err(|e| Status::from_error(e.into()))?,
             ),
             signatures: None,
@@ -204,7 +230,7 @@ impl Client {
                 effects_bcs: Some(true),
                 events: Some(false),
                 events_bcs: Some(true),
-                ..(parameters.to_owned().into())
+                ..parameters.to_owned().into()
             }),
         };
 
@@ -393,3 +419,16 @@ fn status_from_error_with_metadata<T: Into<BoxError>>(err: T, metadata: Metadata
     *status.metadata_mut() = metadata;
     status
 }
+
+pub struct BasicAuthInterceptor {
+    basic_auth: Option<MetadataValue<Ascii>>,
+}
+
+impl Interceptor for BasicAuthInterceptor {
+    fn call(&mut self, mut request: Request<()>) -> std::result::Result<Request<()>, Status> {
+        if let Some(auth) = self.basic_auth.as_ref() {
+            request.metadata_mut().insert("authorization", auth.clone());
+        }
+        Ok(request)
+    }
+}