diff --git a/rpc/types/src/defaults.rs b/rpc/types/src/defaults.rs
index c16cdd6..86c778b 100644
--- a/rpc/types/src/defaults.rs
+++ b/rpc/types/src/defaults.rs
@@ -28,6 +28,18 @@ pub(crate) const fn default_height() -> u64 {
     0
 }
 
+/// TODO
+#[inline]
+pub(crate) const fn default_vec<T>() -> Vec<T> {
+    Vec::new()
+}
+
+/// TODO
+#[inline]
+pub(crate) const fn default_u64() -> u64 {
+    0
+}
+
 //---------------------------------------------------------------------------------------------------- Tests
 #[cfg(test)]
 mod test {
diff --git a/rpc/types/src/free.rs b/rpc/types/src/free.rs
new file mode 100644
index 0000000..045bdc6
--- /dev/null
+++ b/rpc/types/src/free.rs
@@ -0,0 +1,8 @@
+//! Macros.
+
+//---------------------------------------------------------------------------------------------------- TODO
+/// TODO
+#[allow(clippy::trivially_copy_pass_by_ref)] // serde needs `&`
+pub(crate) const fn is_zero(u: &u64) -> bool {
+    *u == 0
+}
diff --git a/rpc/types/src/json.rs b/rpc/types/src/json.rs
index 1d27e07..a4009f8 100644
--- a/rpc/types/src/json.rs
+++ b/rpc/types/src/json.rs
@@ -5,9 +5,11 @@
 //---------------------------------------------------------------------------------------------------- Import
 use crate::{
     base::{AccessResponseBase, ResponseBase},
-    defaults::{default_bool, default_height, default_string},
+    defaults::{default_bool, default_height, default_string, default_u64, default_vec},
+    free::is_zero,
     macros::define_request_and_response,
-    misc::{BlockHeader, ConnectionInfo, GetBan, SetBan},
+    misc::{BlockHeader, ConnectionInfo, GetBan, HardforkEntry, HistogramEntry, SetBan},
+    Status,
 };
 
 //---------------------------------------------------------------------------------------------------- Struct definitions
@@ -374,7 +376,7 @@ define_request_and_response! {
 define_request_and_response! {
     get_bans,
     cc73fe71162d564ffda8e549b79a350bca53c454 =>
-    core_rpc_server_commands_defs.h => 2032..=2067,
+    core_rpc_server_commands_defs.h => 1997..=2030,
     GetBans,
     Request {},
     ResponseBase {
@@ -382,6 +384,93 @@ define_request_and_response! {
     }
 }
 
+define_request_and_response! {
+    banned,
+    cc73fe71162d564ffda8e549b79a350bca53c454 =>
+    core_rpc_server_commands_defs.h => 2069..=2094,
+    Banned,
+    #[cfg_attr(feature = "serde", serde(transparent))]
+    #[repr(transparent)]
+    Request {
+        address: String,
+    },
+    Response {
+        banned: bool,
+        seconds: u32,
+        status: Status,
+    }
+}
+
+define_request_and_response! {
+    flush_txpool,
+    cc73fe71162d564ffda8e549b79a350bca53c454 =>
+    core_rpc_server_commands_defs.h => 2096..=2116,
+    FlushTransactionPool,
+    Request {
+        #[cfg_attr(feature = "serde", serde(default = "default_vec"))]
+        txids: Vec<String> = default_vec::<String>(),
+    },
+    #[cfg_attr(feature = "serde", serde(transparent))]
+    #[repr(transparent)]
+    Response {
+        status: Status,
+    }
+}
+
+define_request_and_response! {
+    get_output_histogram,
+    cc73fe71162d564ffda8e549b79a350bca53c454 =>
+    core_rpc_server_commands_defs.h => 2118..=2168,
+    GetOutputHistogram,
+    Request {
+        amounts: Vec<u64>,
+        min_count: u64,
+        max_count: u64,
+        unlocked: bool,
+        recent_cutoff: u64,
+    },
+    AccessResponseBase {
+        histogram: Vec<HistogramEntry>,
+    }
+}
+
+define_request_and_response! {
+    get_coinbase_tx_sum,
+    cc73fe71162d564ffda8e549b79a350bca53c454 =>
+    core_rpc_server_commands_defs.h => 2213..=2248,
+    GetCoinbaseTxSum,
+    Request {
+        height: u64,
+        count: u64,
+    },
+    AccessResponseBase {
+        emission_amount: u64,
+        emission_amount_top64: u64,
+        fee_amount: u64,
+        fee_amount_top64: u64,
+        wide_emission_amount: String,
+        wide_fee_amount: String,
+    }
+}
+
+define_request_and_response! {
+    get_version,
+    cc73fe71162d564ffda8e549b79a350bca53c454 =>
+    core_rpc_server_commands_defs.h => 2170..=2211,
+    GetVersion,
+    Request {},
+    ResponseBase {
+        version: u32,
+        release: bool,
+        #[serde(skip_serializing_if = "is_zero", default = "default_u64")]
+        current_height: u64 = default_u64(),
+        #[serde(skip_serializing_if = "is_zero", default = "default_u64")]
+        target_height: u64 = default_u64(),
+        #[serde(skip_serializing_if = "Vec::is_empty", default = "default_vec")]
+        hard_forks: Vec<HardforkEntry> = default_vec(),
+    }
+}
+
 //---------------------------------------------------------------------------------------------------- Tests
 #[cfg(test)]
 mod test {
diff --git a/rpc/types/src/lib.rs b/rpc/types/src/lib.rs
index 85a2f2a..d644df3 100644
--- a/rpc/types/src/lib.rs
+++ b/rpc/types/src/lib.rs
@@ -100,6 +100,7 @@
 mod binary_string;
 mod constants;
 mod defaults;
+mod free;
 mod macros;
 mod status;
 
diff --git a/rpc/types/src/misc.rs b/rpc/types/src/misc.rs
index dca7e28..143e00e 100644
--- a/rpc/types/src/misc.rs
+++ b/rpc/types/src/misc.rs
@@ -163,6 +163,40 @@ define_struct_and_impl_epee! {
     }
 }
 
+//---------------------------------------------------------------------------------------------------- HistogramEntry
+define_struct_and_impl_epee! {
+    #[doc = monero_definition_link!(
+        cc73fe71162d564ffda8e549b79a350bca53c454,
+        "rpc/core_rpc_server_commands_defs.h",
+        2139..=2156
+    )]
+    /// Used in [`crate::json::GetOutputHistogramResponse`].
+    #[derive(Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
+    #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+    HistogramEntry {
+        amount: u64,
+        total_instances: u64,
+        unlocked_instances: u64,
+        recent_instances: u64,
+    }
+}
+
+//---------------------------------------------------------------------------------------------------- HardforkEntry
+define_struct_and_impl_epee! {
+    #[doc = monero_definition_link!(
+        cc73fe71162d564ffda8e549b79a350bca53c454,
+        "rpc/core_rpc_server_commands_defs.h",
+        2180..=2191
+    )]
+    /// Used in [`crate::json::GetVersionResponse`].
+    #[derive(Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
+    #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+    HardforkEntry {
+        height: u64,
+        hf_version: u8,
+    }
+}
+
 //---------------------------------------------------------------------------------------------------- Tests
 #[cfg(test)]
 mod test {