diff --git a/backend/src/api/bitcoin/bitcoin-api-abstract-factory.ts b/backend/src/api/bitcoin/bitcoin-api-abstract-factory.ts
index 5bd961e23..02640efc0 100644
--- a/backend/src/api/bitcoin/bitcoin-api-abstract-factory.ts
+++ b/backend/src/api/bitcoin/bitcoin-api-abstract-factory.ts
@@ -1,3 +1,4 @@
+import { IBitcoinApi } from './bitcoin-api.interface';
 import { IEsploraApi } from './esplora-api.interface';
 
 export interface AbstractBitcoinApi {
diff --git a/backend/src/api/blocks.ts b/backend/src/api/blocks.ts
index 6b4a14a0e..646672f58 100644
--- a/backend/src/api/blocks.ts
+++ b/backend/src/api/blocks.ts
@@ -2,7 +2,7 @@ import config from '../config';
 import bitcoinApi, { bitcoinCoreApi } from './bitcoin/bitcoin-api-factory';
 import logger from '../logger';
 import memPool from './mempool';
-import { BlockExtended, BlockExtension, BlockSummary, PoolTag, TransactionExtended, TransactionStripped, TransactionMinerInfo, CpfpSummary, MempoolTransactionExtended } from '../mempool.interfaces';
+import { BlockExtended, BlockExtension, BlockSummary, PoolTag, TransactionExtended, TransactionMinerInfo, CpfpSummary, MempoolTransactionExtended, TransactionClassified } from '../mempool.interfaces';
 import { Common } from './common';
 import diskCache from './disk-cache';
 import transactionUtils from './transaction-utils';
@@ -201,7 +201,8 @@ class Blocks {
         txid: tx.txid,
         vsize: tx.weight / 4,
         fee: tx.fee ? Math.round(tx.fee * 100000000) : 0,
-        value: Math.round(tx.vout.reduce((acc, vout) => acc + (vout.value ? vout.value : 0), 0) * 100000000)
+        value: Math.round(tx.vout.reduce((acc, vout) => acc + (vout.value ? vout.value : 0), 0) * 100000000),
+        flags: 0,
       };
     });
 
@@ -214,7 +215,7 @@ class Blocks {
   public summarizeBlockTransactions(hash: string, transactions: TransactionExtended[]): BlockSummary {
     return {
       id: hash,
-      transactions: Common.stripTransactions(transactions),
+      transactions: Common.classifyTransactions(transactions),
     };
   }
 
@@ -945,7 +946,7 @@ class Blocks {
   }
 
   public async $getStrippedBlockTransactions(hash: string, skipMemoryCache = false,
-    skipDBLookup = false, cpfpSummary?: CpfpSummary, blockHeight?: number): Promise<TransactionStripped[]>
+    skipDBLookup = false, cpfpSummary?: CpfpSummary, blockHeight?: number): Promise<TransactionClassified[]>
   {
     if (skipMemoryCache === false) {
       // Check the memory cache
@@ -974,7 +975,8 @@ class Blocks {
             fee: tx.fee || 0,
             vsize: tx.vsize,
             value: Math.round(tx.vout.reduce((acc, vout) => acc + (vout.value ? vout.value : 0), 0)),
-            rate: tx.effectiveFeePerVsize
+            rate: tx.effectiveFeePerVsize,
+            flags: tx.flags || Common.getTransactionFlags(tx),
           };
         }),
       };
diff --git a/backend/src/api/common.ts b/backend/src/api/common.ts
index af93b9622..0dccdef84 100644
--- a/backend/src/api/common.ts
+++ b/backend/src/api/common.ts
@@ -1,10 +1,9 @@
 import * as bitcoinjs from 'bitcoinjs-lib';
 import { Request } from 'express';
-import { Ancestor, CpfpInfo, CpfpSummary, CpfpCluster, EffectiveFeeStats, MempoolBlockWithTransactions, TransactionExtended, MempoolTransactionExtended, TransactionStripped, WorkingEffectiveFeeStats, TransactionClassified, TransactionFlags } from '../mempool.interfaces';
+import { CpfpInfo, CpfpSummary, CpfpCluster, EffectiveFeeStats, MempoolBlockWithTransactions, TransactionExtended, MempoolTransactionExtended, TransactionStripped, WorkingEffectiveFeeStats, TransactionClassified, TransactionFlags } from '../mempool.interfaces';
 import config from '../config';
 import { NodeSocket } from '../repositories/NodesSocketsRepository';
 import { isIP } from 'net';
-import rbfCache from './rbf-cache';
 import transactionUtils from './transaction-utils';
 import { isPoint } from '../utils/secp256k1';
 export class Common {
@@ -349,14 +348,18 @@ export class Common {
   }
 
   static classifyTransaction(tx: TransactionExtended): TransactionClassified {
-    const flags = this.getTransactionFlags(tx);
+    const flags = Common.getTransactionFlags(tx);
     tx.flags = flags;
     return {
-      ...this.stripTransaction(tx),
+      ...Common.stripTransaction(tx),
       flags,
     };
   }
 
+  static classifyTransactions(txs: TransactionExtended[]): TransactionClassified[] {
+    return txs.map(Common.classifyTransaction);
+  }
+
   static stripTransaction(tx: TransactionExtended): TransactionStripped {
     return {
       txid: tx.txid,
@@ -369,7 +372,7 @@ export class Common {
   }
 
   static stripTransactions(txs: TransactionExtended[]): TransactionStripped[] {
-    return txs.map(this.stripTransaction);
+    return txs.map(Common.stripTransaction);
   }
 
   static sleep$(ms: number): Promise<void> {
diff --git a/backend/src/api/mempool-blocks.ts b/backend/src/api/mempool-blocks.ts
index 0ca550f4c..58921fcfb 100644
--- a/backend/src/api/mempool-blocks.ts
+++ b/backend/src/api/mempool-blocks.ts
@@ -1,6 +1,6 @@
 import { GbtGenerator, GbtResult, ThreadTransaction as RustThreadTransaction, ThreadAcceleration as RustThreadAcceleration } from 'rust-gbt';
 import logger from '../logger';
-import { MempoolBlock, MempoolTransactionExtended, TransactionStripped, MempoolBlockWithTransactions, MempoolBlockDelta, Ancestor, CompactThreadTransaction, EffectiveFeeStats, PoolTag, TransactionClassified } from '../mempool.interfaces';
+import { MempoolBlock, MempoolTransactionExtended, MempoolBlockWithTransactions, MempoolBlockDelta, Ancestor, CompactThreadTransaction, EffectiveFeeStats, PoolTag, TransactionClassified } from '../mempool.interfaces';
 import { Common, OnlineFeeStatsCalculator } from './common';
 import config from '../config';
 import { Worker } from 'worker_threads';
diff --git a/backend/src/mempool.interfaces.ts b/backend/src/mempool.interfaces.ts
index c93372ded..09d251050 100644
--- a/backend/src/mempool.interfaces.ts
+++ b/backend/src/mempool.interfaces.ts
@@ -280,7 +280,7 @@ export interface BlockExtended extends IEsploraApi.Block {
 
 export interface BlockSummary {
   id: string;
-  transactions: TransactionStripped[];
+  transactions: TransactionClassified[];
 }
 
 export interface AuditSummary extends BlockAudit {
@@ -288,8 +288,8 @@ export interface AuditSummary extends BlockAudit {
   size?: number,
   weight?: number,
   tx_count?: number,
-  transactions: TransactionStripped[];
-  template?: TransactionStripped[];
+  transactions: TransactionClassified[];
+  template?: TransactionClassified[];
 }
 
 export interface BlockPrice {
diff --git a/backend/src/repositories/BlocksSummariesRepository.ts b/backend/src/repositories/BlocksSummariesRepository.ts
index 09598db03..a61bf60ed 100644
--- a/backend/src/repositories/BlocksSummariesRepository.ts
+++ b/backend/src/repositories/BlocksSummariesRepository.ts
@@ -1,6 +1,6 @@
 import DB from '../database';
 import logger from '../logger';
-import { BlockSummary, TransactionStripped } from '../mempool.interfaces';
+import { BlockSummary, TransactionClassified } from '../mempool.interfaces';
 
 class BlocksSummariesRepository {
   public async $getByBlockId(id: string): Promise<BlockSummary | undefined> {
@@ -17,7 +17,7 @@ class BlocksSummariesRepository {
     return undefined;
   }
 
-  public async $saveTransactions(blockHeight: number, blockId: string, transactions: TransactionStripped[]): Promise<void> {
+  public async $saveTransactions(blockHeight: number, blockId: string, transactions: TransactionClassified[]): Promise<void> {
     try {
       const transactionsStr = JSON.stringify(transactions);
       await DB.query(`