diff --git a/src/interfaces/chain.h b/src/interfaces/chain.h
--- a/src/interfaces/chain.h
+++ b/src/interfaces/chain.h
@@ -6,6 +6,7 @@
 #define BITCOIN_INTERFACES_CHAIN_H
 
 #include <optional.h>
+#include <primitives/txid.h>
 
 #include <cstdint>
 #include <memory>
@@ -140,6 +141,9 @@
     //! Estimate fraction of total transactions verified if blocks up to
     //! the specified block hash are verified.
     virtual double guessVerificationProgress(const BlockHash &block_hash) = 0;
+
+    //! Check if transaction has descendants in mempool.
+    virtual bool hasDescendantsInMempool(const TxId &txid) = 0;
 };
 
 //! Interface to let node manage chain clients (wallets, or maybe tools for
diff --git a/src/interfaces/chain.cpp b/src/interfaces/chain.cpp
--- a/src/interfaces/chain.cpp
+++ b/src/interfaces/chain.cpp
@@ -188,6 +188,12 @@
             return GuessVerificationProgress(Params().TxData(),
                                              LookupBlockIndex(block_hash));
         }
+        bool hasDescendantsInMempool(const TxId &txid) override {
+            LOCK(::g_mempool.cs);
+            auto it_mp = ::g_mempool.mapTx.find(txid);
+            return it_mp != ::g_mempool.mapTx.end() &&
+                   it_mp->GetCountWithDescendants() > 1;
+        }
     };
 
 } // namespace