diff --git a/src/interfaces/chain.h b/src/interfaces/chain.h
--- a/src/interfaces/chain.h
+++ b/src/interfaces/chain.h
@@ -272,6 +272,9 @@
     //! to be prepared to handle this by ignoring notifications about unknown
     //! removed transactions and already added new transactions.
     virtual void requestMempoolTransactions(Notifications &notifications) = 0;
+
+    //! This Chain's parameters
+    virtual const CChainParams &params() const = 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
@@ -408,6 +408,7 @@
                 notifications.TransactionAddedToMempool(entry.GetSharedTx());
             }
         }
+        const CChainParams &params() const override { return m_params; }
         NodeContext &m_node;
         const CChainParams &m_params;
     };