diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -622,6 +622,7 @@
 	rpc/net.cpp
 	rpc/rawtransaction.cpp
 	rpc/server.cpp
+	rpc/server_util.cpp
 	script/scriptcache.cpp
 	script/sigcache.cpp
 	shutdown.cpp
diff --git a/src/rest.cpp b/src/rest.cpp
--- a/src/rest.cpp
+++ b/src/rest.cpp
@@ -16,6 +16,7 @@
 #include <rpc/blockchain.h>
 #include <rpc/protocol.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <streams.h>
 #include <sync.h>
 #include <txmempool.h>
diff --git a/src/rpc/avalanche.cpp b/src/rpc/avalanche.cpp
--- a/src/rpc/avalanche.cpp
+++ b/src/rpc/avalanche.cpp
@@ -18,6 +18,7 @@
 #include <node/context.h>
 #include <rpc/blockchain.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <util/strencodings.h>
 #include <util/translation.h>
diff --git a/src/rpc/blockchain.h b/src/rpc/blockchain.h
--- a/src/rpc/blockchain.h
+++ b/src/rpc/blockchain.h
@@ -52,12 +52,6 @@
                            const CBlockIndex *blockindex)
     LOCKS_EXCLUDED(cs_main);
 
-NodeContext &EnsureAnyNodeContext(const std::any &context);
-CTxMemPool &EnsureMemPool(const NodeContext &node);
-CTxMemPool &EnsureAnyMemPool(const std::any &context);
-ChainstateManager &EnsureChainman(const NodeContext &node);
-ChainstateManager &EnsureAnyChainman(const std::any &context);
-
 /**
  * Helper to create UTXO snapshots given a chainstate and a file handle.
  * @return a UniValue map containing metadata about the snapshot.
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -26,6 +26,7 @@
 #include <policy/policy.h>
 #include <primitives/transaction.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <script/descriptor.h>
 #include <streams.h>
@@ -33,7 +34,6 @@
 #include <txmempool.h>
 #include <undo.h>
 #include <util/strencodings.h>
-#include <util/system.h>
 #include <util/translation.h>
 #include <validation.h>
 #include <validationinterface.h>
@@ -54,37 +54,6 @@
 static std::condition_variable cond_blockchange;
 static CUpdatedBlock latestblock GUARDED_BY(cs_blockchange);
 
-NodeContext &EnsureAnyNodeContext(const std::any &context) {
-    auto node_context = util::AnyPtr<NodeContext>(context);
-    if (!node_context) {
-        throw JSONRPCError(RPC_INTERNAL_ERROR, "Node context not found");
-    }
-    return *node_context;
-}
-
-CTxMemPool &EnsureMemPool(const NodeContext &node) {
-    if (!node.mempool) {
-        throw JSONRPCError(RPC_CLIENT_MEMPOOL_DISABLED,
-                           "Mempool disabled or instance not found");
-    }
-    return *node.mempool;
-}
-
-CTxMemPool &EnsureAnyMemPool(const std::any &context) {
-    return EnsureMemPool(EnsureAnyNodeContext(context));
-}
-
-ChainstateManager &EnsureChainman(const NodeContext &node) {
-    if (!node.chainman) {
-        throw JSONRPCError(RPC_INTERNAL_ERROR, "Node chainman not found");
-    }
-    return *node.chainman;
-}
-
-ChainstateManager &EnsureAnyChainman(const std::any &context) {
-    return EnsureChainman(EnsureAnyNodeContext(context));
-}
-
 /**
  * Calculate the difficulty for a given block index.
  */
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -23,8 +23,8 @@
 #include <pow/pow.h>
 #include <rpc/blockchain.h>
 #include <rpc/mining.h>
-#include <rpc/net.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <script/descriptor.h>
 #include <script/script.h>
diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp
--- a/src/rpc/misc.cpp
+++ b/src/rpc/misc.cpp
@@ -17,6 +17,7 @@
 #include <outputtype.h>
 #include <rpc/blockchain.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <scheduler.h>
 #include <script/descriptor.h>
diff --git a/src/rpc/net.h b/src/rpc/net.h
deleted file mode 100644
--- a/src/rpc/net.h
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2021 The Bitcoin Core developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#ifndef BITCOIN_RPC_NET_H
-#define BITCOIN_RPC_NET_H
-
-class CConnman;
-class PeerManager;
-struct NodeContext;
-
-CConnman &EnsureConnman(const NodeContext &node);
-PeerManager &EnsurePeerman(const NodeContext &node);
-
-#endif // BITCOIN_RPC_NET_H
diff --git a/src/rpc/net.cpp b/src/rpc/net.cpp
--- a/src/rpc/net.cpp
+++ b/src/rpc/net.cpp
@@ -10,7 +10,6 @@
 #include <chainparams.h>
 #include <clientversion.h>
 #include <config.h>
-#include <net.h>
 #include <net_permissions.h>
 #include <net_processing.h>
 #include <net_types.h> // For banmap_t
@@ -19,12 +18,12 @@
 #include <policy/settings.h>
 #include <rpc/blockchain.h>
 #include <rpc/protocol.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <sync.h>
 #include <timedata.h>
 #include <util/strencodings.h>
 #include <util/string.h>
-#include <util/system.h>
 #include <util/translation.h>
 #include <validation.h>
 #include <version.h>
@@ -34,24 +33,6 @@
 
 #include <univalue.h>
 
-CConnman &EnsureConnman(const NodeContext &node) {
-    if (!node.connman) {
-        throw JSONRPCError(
-            RPC_CLIENT_P2P_DISABLED,
-            "Error: Peer-to-peer functionality missing or disabled");
-    }
-    return *node.connman;
-}
-
-PeerManager &EnsurePeerman(const NodeContext &node) {
-    if (!node.peerman) {
-        throw JSONRPCError(
-            RPC_CLIENT_P2P_DISABLED,
-            "Error: Peer-to-peer functionality missing or disabled");
-    }
-    return *node.peerman;
-}
-
 static RPCHelpMan getconnectioncount() {
     return RPCHelpMan{
         "getconnectioncount",
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -26,6 +26,7 @@
 #include <rpc/blockchain.h>
 #include <rpc/rawtransaction_util.h>
 #include <rpc/server.h>
+#include <rpc/server_util.h>
 #include <rpc/util.h>
 #include <script/script.h>
 #include <script/sign.h>
diff --git a/src/rpc/server_util.h b/src/rpc/server_util.h
new file mode 100644
--- /dev/null
+++ b/src/rpc/server_util.h
@@ -0,0 +1,24 @@
+// Copyright (c) 2021 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_RPC_SERVER_UTIL_H
+#define BITCOIN_RPC_SERVER_UTIL_H
+
+#include <any>
+
+class CConnman;
+class ChainstateManager;
+class CTxMemPool;
+struct NodeContext;
+class PeerManager;
+
+NodeContext &EnsureAnyNodeContext(const std::any &context);
+CTxMemPool &EnsureMemPool(const NodeContext &node);
+CTxMemPool &EnsureAnyMemPool(const std::any &context);
+ChainstateManager &EnsureChainman(const NodeContext &node);
+ChainstateManager &EnsureAnyChainman(const std::any &context);
+CConnman &EnsureConnman(const NodeContext &node);
+PeerManager &EnsurePeerman(const NodeContext &node);
+
+#endif // BITCOIN_RPC_SERVER_UTIL_H
diff --git a/src/rpc/server_util.cpp b/src/rpc/server_util.cpp
new file mode 100644
--- /dev/null
+++ b/src/rpc/server_util.cpp
@@ -0,0 +1,64 @@
+// Copyright (c) 2021 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <rpc/server_util.h>
+
+#include <net_processing.h>
+#include <node/context.h>
+#include <rpc/protocol.h>
+#include <rpc/request.h>
+#include <txmempool.h>
+#include <util/system.h>
+#include <validation.h>
+
+#include <any>
+
+NodeContext &EnsureAnyNodeContext(const std::any &context) {
+    auto node_context = util::AnyPtr<NodeContext>(context);
+    if (!node_context) {
+        throw JSONRPCError(RPC_INTERNAL_ERROR, "Node context not found");
+    }
+    return *node_context;
+}
+
+CTxMemPool &EnsureMemPool(const NodeContext &node) {
+    if (!node.mempool) {
+        throw JSONRPCError(RPC_CLIENT_MEMPOOL_DISABLED,
+                           "Mempool disabled or instance not found");
+    }
+    return *node.mempool;
+}
+
+CTxMemPool &EnsureAnyMemPool(const std::any &context) {
+    return EnsureMemPool(EnsureAnyNodeContext(context));
+}
+
+ChainstateManager &EnsureChainman(const NodeContext &node) {
+    if (!node.chainman) {
+        throw JSONRPCError(RPC_INTERNAL_ERROR, "Node chainman not found");
+    }
+    return *node.chainman;
+}
+
+ChainstateManager &EnsureAnyChainman(const std::any &context) {
+    return EnsureChainman(EnsureAnyNodeContext(context));
+}
+
+CConnman &EnsureConnman(const NodeContext &node) {
+    if (!node.connman) {
+        throw JSONRPCError(
+            RPC_CLIENT_P2P_DISABLED,
+            "Error: Peer-to-peer functionality missing or disabled");
+    }
+    return *node.connman;
+}
+
+PeerManager &EnsurePeerman(const NodeContext &node) {
+    if (!node.peerman) {
+        throw JSONRPCError(
+            RPC_CLIENT_P2P_DISABLED,
+            "Error: Peer-to-peer functionality missing or disabled");
+    }
+    return *node.peerman;
+}