diff --git a/lib/bcoin/mempool.js b/lib/bcoin/mempool.js
index f5787329..9c21a24c 100644
--- a/lib/bcoin/mempool.js
+++ b/lib/bcoin/mempool.js
@@ -460,7 +460,40 @@ Mempool.prototype.isSpent = function isSpent(hash, index, callback) {
  */
 
 Mempool.prototype.getCoinsByAddress = function getCoinsByAddress(addresses, callback) {
-  return this.chain.db.getCoinsByAddress.call(this, addresses, callback);
+  var self = this;
+  var coins = [];
+
+  if (!Array.isArray(addresses))
+    addresses = [addresses];
+
+  addresses = utils.uniq(addresses);
+
+  utils.forEachSerial(addresses, function(address, next) {
+    address = bcoin.address.getHash(address);
+
+    if (!address)
+      return next();
+
+    self.db.lookup({
+      gte: 'C/' + address,
+      lte: 'C/' + address + '~',
+      transform: function(key) {
+        key = key.split('/');
+        return 'c/' + key[2] + '/' + key[3];
+      },
+      parse: function(data, key) {
+        var coin = bcoin.coin.fromRaw(data);
+        key = key.split('/');
+        coin.hash = key[1];
+        coin.index = +key[2];
+        coins.push(coin);
+      }
+    }, next);
+  }, function(err) {
+    if (err)
+      return callback(err);
+    return callback(null, coins);
+  });
 };
 
 /**
@@ -470,7 +503,44 @@ Mempool.prototype.getCoinsByAddress = function getCoinsByAddress(addresses, call
  */
 
 Mempool.prototype.getTXByAddress = function getTXByAddress(addresses, callback) {
-  return this.chain.db.getTXByAddress.call(this, addresses, callback);
+  var self = this;
+  var txs = [];
+  var have = {};
+
+  if (!Array.isArray(addresses))
+    addresses = [addresses];
+
+  addresses = utils.uniq(addresses);
+
+  utils.forEachSerial(addresses, function(address, next) {
+    address = bcoin.address.getHash(address);
+
+    if (!address)
+      return next();
+
+    self.db.lookup({
+      gte: 'T/' + address,
+      lte: 'T/' + address + '~',
+      transform: function(key) {
+        var hash = key.split('/')[2];
+
+        if (addresses.length > 1) {
+          if (have[hash])
+            return false;
+          have[hash] = true;
+        }
+
+        return 't/' + hash;
+      },
+      parse: function(data, key) {
+        txs.push(bcoin.tx.fromRaw(data));
+      }
+    }, next);
+  }, function(err) {
+    if (err)
+      return callback(err);
+    return callback(null, txs);
+  });
 };
 
 /**