diff --git a/crates/apollo_config/src/converters.rs b/crates/apollo_config/src/converters.rs
index 647eee76cc3..413b730cf2e 100644
--- a/crates/apollo_config/src/converters.rs
+++ b/crates/apollo_config/src/converters.rs
@@ -328,58 +328,6 @@ where
         .collect()
 }
 
-/// Serializes an optional list into a comma-separated string.
-/// Returns `None` if the input is `None`.
-pub fn serialize_optional_comma_separated<T>(list: &Option<Vec<T>>) -> Option<String>
-where
-    T: ToString,
-{
-    match list {
-        None => None,
-        Some(list) => Some(list.iter().map(|item| item.to_string()).collect::<Vec<_>>().join(",")),
-    }
-}
-
-/// Serializes an optional list into a comma-separated string, for use as
-/// `#[serde(serialize_with)]`. Counterpart of `deserialize_comma_separated_str`: `None` and
-/// `Some(empty)` both serialize to the empty string, which that deserializer reads back as `None`.
-pub fn serialize_optional_comma_separated_str<S, T>(
-    list: &Option<Vec<T>>,
-    se: S,
-) -> Result<S::Ok, S::Error>
-where
-    S: Serializer,
-    T: ToString,
-{
-    se.serialize_str(&serialize_optional_comma_separated(list).unwrap_or_default())
-}
-
-/// Deserializes an optional comma-separated list of values implementing `FromStr` into
-/// `Option<Vec<T>>`. Returns `None` for empty or missing strings.
-pub fn deserialize_comma_separated_str<'de, D, T>(de: D) -> Result<Option<Vec<T>>, D::Error>
-where
-    D: Deserializer<'de>,
-    T: FromStr,
-    <T as FromStr>::Err: std::fmt::Display,
-{
-    let raw = String::deserialize(de).unwrap_or_default();
-    if raw.trim().is_empty() {
-        return Ok(None);
-    }
-
-    let mut output: Vec<T> = Vec::new();
-    for part in raw.split(',').filter(|s| !s.is_empty()) {
-        let value = T::from_str(part)
-            .map_err(|e| D::Error::custom(format!("Invalid value '{part}': {e}")))?;
-        output.push(value);
-    }
-
-    if output.is_empty() {
-        return Ok(None);
-    }
-    Ok(Some(output))
-}
-
 /// Deserializes a sensitive `Vec<u8>` from hex string structure.
 pub fn deserialize_optional_sensitive_vec_u8<'de, D>(
     de: D,
diff --git a/crates/apollo_config/src/converters_test.rs b/crates/apollo_config/src/converters_test.rs
index 85b95ab8f70..11cf78a4985 100644
--- a/crates/apollo_config/src/converters_test.rs
+++ b/crates/apollo_config/src/converters_test.rs
@@ -3,14 +3,12 @@ use std::time::Duration;
 use serde::{Deserialize, Serialize};
 
 use super::{
-    deserialize_comma_separated_str,
     deserialize_float_seconds_to_duration,
     deserialize_milliseconds_to_duration,
     deserialize_seconds_to_duration,
     serialize_duration_as_float_seconds,
     serialize_duration_as_milliseconds,
     serialize_duration_as_seconds,
-    serialize_optional_comma_separated_str,
 };
 
 // These wrappers mirror the `#[serde(deserialize_with = ..., serialize_with = ...)]` pairings used
@@ -45,17 +43,6 @@ struct FloatSecondsWrapper {
     duration: Duration,
 }
 
-// `deserialize_comma_separated_str`/`serialize_optional_comma_separated_str` are generic over any
-// `T: FromStr + ToString`; `u64` exercises the same code path without pulling in `starknet_api`.
-#[derive(Debug, PartialEq, Serialize, Deserialize)]
-struct CommaSeparatedWrapper {
-    #[serde(
-        deserialize_with = "deserialize_comma_separated_str",
-        serialize_with = "serialize_optional_comma_separated_str"
-    )]
-    list: Option<Vec<u64>>,
-}
-
 fn assert_round_trips<T>(value: T)
 where
     T: Serialize + serde::de::DeserializeOwned + PartialEq + std::fmt::Debug,
@@ -85,10 +72,3 @@ fn float_seconds_duration_round_trips() {
     // representable to avoid float rounding noise in the equality assertion.
     assert_round_trips(FloatSecondsWrapper { duration: Duration::from_secs_f64(1.5) });
 }
-
-#[test]
-fn comma_separated_list_round_trips() {
-    // `None` (the default) and a populated list.
-    assert_round_trips(CommaSeparatedWrapper { list: None });
-    assert_round_trips(CommaSeparatedWrapper { list: Some(vec![1, 22, 333]) });
-}
diff --git a/crates/apollo_network/src/lib.rs b/crates/apollo_network/src/lib.rs
index a6d50f20ed1..67308fed471 100644
--- a/crates/apollo_network/src/lib.rs
+++ b/crates/apollo_network/src/lib.rs
@@ -223,11 +223,9 @@ use std::collections::HashSet;
 use std::time::Duration;
 
 use apollo_config::converters::{
-    deserialize_comma_separated_str,
     deserialize_optional_sensitive_vec_u8,
     deserialize_seconds_to_duration,
     serialize_duration_as_seconds,
-    serialize_optional_comma_separated_str,
 };
 use apollo_config::secrets::Sensitive;
 use apollo_config::validators::validate_optional_sensitive_vec_u256;
@@ -321,10 +319,6 @@ pub struct NetworkConfig {
 
     /// Bootstrap peer multiaddresses for initial connectivity. Each must include a valid peer ID.
     /// Format: `/ip4/1.2.3.4/tcp/10000/p2p/<peer-id>`. Default: None
-    #[serde(
-        deserialize_with = "deserialize_comma_separated_str",
-        serialize_with = "serialize_optional_comma_separated_str"
-    )]
     #[validate(custom(function = "validate_bootstrap_peer_multiaddr_list"))]
     pub bootstrap_peer_multiaddr: Option<Vec<Multiaddr>>,
 
diff --git a/crates/apollo_node_config/src/config_serde_symmetry_test.rs b/crates/apollo_node_config/src/config_serde_symmetry_test.rs
index cd7bd21cad0..45b28aa6db8 100644
--- a/crates/apollo_node_config/src/config_serde_symmetry_test.rs
+++ b/crates/apollo_node_config/src/config_serde_symmetry_test.rs
@@ -130,7 +130,7 @@ fn consensus_manager_config_round_trips() {
 fn network_config_round_trips() {
     // Covers apollo_network directly: NetworkConfig::{session_timeout, idle_connection_timeout,
     // prune_dead_connections_ping_interval, prune_dead_connections_ping_timeout (seconds),
-    // bootstrap_peer_multiaddr (comma-separated list)}, and (via sub-structs)
+    // bootstrap_peer_multiaddr (native JSON array)}, and (via sub-structs)
     // DiscoveryConfig::heartbeat_interval, RetryConfig::{max_delay_seconds,
     // new_connection_stabilization_millis}, PeerManagerConfig::{malicious_timeout_seconds,
     // unstable_timeout_millis}.
diff --git a/deployments/monitoring/local/docker-compose.yml b/deployments/monitoring/local/docker-compose.yml
index ff984436de8..a2ac00423ad 100644
--- a/deployments/monitoring/local/docker-compose.yml
+++ b/deployments/monitoring/local/docker-compose.yml
@@ -130,7 +130,7 @@ services:
           jq '.components.l1_gas_price_scraper.execution_mode = "Disabled"' "$$cfg" | sponge "$$cfg"
           if [ "$$N_NODES" -gt 1 ]; then
             for key in consensus_manager_config.network_config.bootstrap_peer_multiaddr mempool_p2p_config.network_config.bootstrap_peer_multiaddr state_sync_config.static_config.network_config.bootstrap_peer_multiaddr; do
-              jq --arg k "$$key" '($$k / ".") as $$p | if getpath($$p) == null then . else setpath($$p; getpath($$p) | split(",") | to_entries | map(.key as $$j | .value | sub("/ip4/[0-9.]+/"; "/dns4/sequencer-node-\($$j)/")) | join(",")) end' "$$cfg" | sponge "$$cfg"
+              jq --arg k "$$key" '($$k / ".") as $$p | if getpath($$p) == null then . else setpath($$p; getpath($$p) | to_entries | map(.key as $$j | .value | sub("/ip4/[0-9.]+/"; "/dns4/sequencer-node-\($$j)/"))) end' "$$cfg" | sponge "$$cfg"
             done
           fi
         done
diff --git a/deployments/sequencer/configs/jsonnet/lib/applicative_config/utils.libsonnet b/deployments/sequencer/configs/jsonnet/lib/applicative_config/utils.libsonnet
index b768497491f..4fec84405c0 100644
--- a/deployments/sequencer/configs/jsonnet/lib/applicative_config/utils.libsonnet
+++ b/deployments/sequencer/configs/jsonnet/lib/applicative_config/utils.libsonnet
@@ -1,6 +1,6 @@
 {
   advertisedMultiaddr(bootstrap_peer_multiaddr, node_index, nodes_at_same_cluster)::
     if !nodes_at_same_cluster && bootstrap_peer_multiaddr != null
-    then std.split(bootstrap_peer_multiaddr, ',')[node_index]
+    then bootstrap_peer_multiaddr[node_index]
     else null,
 }