diff --git a/crates/esplora/src/async_ext.rs b/crates/esplora/src/async_ext.rs
index 8e697a2a9a..91f419b40e 100644
--- a/crates/esplora/src/async_ext.rs
+++ b/crates/esplora/src/async_ext.rs
@@ -1,7 +1,8 @@
 use async_trait::async_trait;
 use bdk_chain::collections::btree_map;
+use bdk_chain::spk_client::{FullScanRequest, SyncRequest};
 use bdk_chain::{
-    bitcoin::{BlockHash, OutPoint, ScriptBuf, Txid},
+    bitcoin::{BlockHash, ScriptBuf, Txid},
     collections::BTreeMap,
     local_chain::{self, CheckPoint},
     BlockId, ConfirmationTimeHeightAnchor, TxGraph,
@@ -43,9 +44,7 @@ pub trait EsploraAsyncExt {
     ) -> Result<local_chain::Update, Error>;
 
     /// Full scan the keychain scripts specified with the blockchain (via an Esplora client) and
-    /// returns a [`TxGraph`] and a map of last active indices.
-    ///
-    /// * `keychain_spks`: keychains that we want to scan transactions for
+    /// returns a [`TxGraph`] and a map of keychain last active indices.
     ///
     /// The full scan for each keychain stops after a gap of `stop_gap` script pubkeys with no associated
     /// transactions. `parallel_requests` specifies the max number of HTTP requests to make in
@@ -53,7 +52,7 @@ pub trait EsploraAsyncExt {
     #[allow(clippy::result_large_err)]
     async fn full_scan<K: Ord + Clone + Send>(
         &self,
-        keychain_spks: BTreeMap<
+        request: FullScanRequest<
             K,
             impl IntoIterator<IntoIter = impl Iterator<Item = (u32, ScriptBuf)> + Send> + Send,
         >,
@@ -76,9 +75,7 @@ pub trait EsploraAsyncExt {
     #[allow(clippy::result_large_err)]
     async fn sync(
         &self,
-        misc_spks: impl IntoIterator<IntoIter = impl Iterator<Item = ScriptBuf> + Send> + Send,
-        txids: impl IntoIterator<IntoIter = impl Iterator<Item = Txid> + Send> + Send,
-        outpoints: impl IntoIterator<IntoIter = impl Iterator<Item = OutPoint> + Send> + Send,
+        request: SyncRequest,
         parallel_requests: usize,
     ) -> Result<TxGraph<ConfirmationTimeHeightAnchor>, Error>;
 }
@@ -151,7 +148,7 @@ impl EsploraAsyncExt for esplora_client::AsyncClient {
 
     async fn full_scan<K: Ord + Clone + Send>(
         &self,
-        keychain_spks: BTreeMap<
+        request: FullScanRequest<
             K,
             impl IntoIterator<IntoIter = impl Iterator<Item = (u32, ScriptBuf)> + Send> + Send,
         >,
@@ -161,13 +158,12 @@ impl EsploraAsyncExt for esplora_client::AsyncClient {
         type TxsOfSpkIndex = (u32, Vec<esplora_client::Tx>);
         let parallel_requests = Ord::max(parallel_requests, 1);
         let mut graph = TxGraph::<ConfirmationTimeHeightAnchor>::default();
-        let mut last_active_indexes = BTreeMap::<K, u32>::new();
+        let mut last_active_indices = BTreeMap::<K, u32>::new();
 
-        for (keychain, spks) in keychain_spks {
+        for (keychain, spks) in request.spks_by_keychain {
             let mut spks = spks.into_iter();
             let mut last_index = Option::<u32>::None;
             let mut last_active_index = Option::<u32>::None;
-
             loop {
                 let handles = spks
                     .by_ref()
@@ -219,37 +215,36 @@ impl EsploraAsyncExt for esplora_client::AsyncClient {
             }
 
             if let Some(last_active_index) = last_active_index {
-                last_active_indexes.insert(keychain, last_active_index);
+                last_active_indices.insert(keychain, last_active_index);
             }
         }
 
-        Ok((graph, last_active_indexes))
+        Ok((graph, last_active_indices))
     }
 
     async fn sync(
         &self,
-        misc_spks: impl IntoIterator<IntoIter = impl Iterator<Item = ScriptBuf> + Send> + Send,
-        txids: impl IntoIterator<IntoIter = impl Iterator<Item = Txid> + Send> + Send,
-        outpoints: impl IntoIterator<IntoIter = impl Iterator<Item = OutPoint> + Send> + Send,
+        request: SyncRequest,
         parallel_requests: usize,
     ) -> Result<TxGraph<ConfirmationTimeHeightAnchor>, Error> {
+        let full_scan_request = FullScanRequest {
+            spks_by_keychain: [(
+                0,
+                request
+                    .spks
+                    .into_iter()
+                    .enumerate()
+                    .map(|(i, spk)| (i as u32, spk)),
+            )]
+            .into(),
+            checkpoint: request.checkpoint,
+        };
         let mut graph = self
-            .full_scan(
-                [(
-                    (),
-                    misc_spks
-                        .into_iter()
-                        .enumerate()
-                        .map(|(i, spk)| (i as u32, spk)),
-                )]
-                .into(),
-                usize::MAX,
-                parallel_requests,
-            )
+            .full_scan(full_scan_request, usize::MAX, parallel_requests)
             .await
             .map(|(g, _)| g)?;
 
-        let mut txids = txids.into_iter();
+        let mut txids = request.txids.into_iter();
         loop {
             let handles = txids
                 .by_ref()
@@ -257,7 +252,9 @@ impl EsploraAsyncExt for esplora_client::AsyncClient {
                 .filter(|&txid| graph.get_tx(txid).is_none())
                 .map(|txid| {
                     let client = self.clone();
-                    async move { client.get_tx_status(&txid).await.map(|s| (txid, s)) }
+                    async move {
+                        client.get_tx_status(&txid).await.map(|s| (txid, s))
+                    }
                 })
                 .collect::<FuturesOrdered<_>>();
 
@@ -272,7 +269,7 @@ impl EsploraAsyncExt for esplora_client::AsyncClient {
             }
         }
 
-        for op in outpoints.into_iter() {
+        for op in request.outpoints.into_iter() {
             if graph.get_tx(op.txid).is_none() {
                 if let Some(tx) = self.get_tx(&op.txid).await? {
                     let _ = graph.insert_tx(tx);