diff --git a/haskoin-store-data.cabal b/haskoin-store-data.cabal
--- a/haskoin-store-data.cabal
+++ b/haskoin-store-data.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 673e35a73b453ce8509ef026e9e11a225eca239ddd5cfc6301f96b21b702b6dc
+-- hash: 2cebcf80600babffafe1b3f7d67748d1c9968a0f52836452b1c2d89f2dc250f3
 
 name:           haskoin-store-data
-version:        0.34.0
+version:        0.34.1
 synopsis:       Data for Haskoin Store
 description:    Please see the README on GitHub at <https://github.com/haskoin/haskoin-store#readme>
 category:       Bitcoin, Finance, Network
@@ -74,7 +74,7 @@
     , deepseq >=1.4.4.0
     , hashable >=1.3.0.0
     , haskoin-core >=0.13.6
-    , haskoin-store-data ==0.34.0
+    , haskoin-store-data ==0.34.1
     , hspec >=2.7.1
     , http-client >=0.6.4.1
     , http-types >=0.12.3
diff --git a/src/Haskoin/Store/Data.hs b/src/Haskoin/Store/Data.hs
--- a/src/Haskoin/Store/Data.hs
+++ b/src/Haskoin/Store/Data.hs
@@ -76,6 +76,7 @@
     , BlockHealth(..)
     , TimeHealth(..)
     , CountHealth(..)
+    , MaxHealth(..)
     , HealthCheck(..)
     , Event(..)
     , Except(..)
@@ -1236,11 +1237,50 @@
             countHealthMin <- o .: "min"
             return CountHealth {..}
 
+data MaxHealth =
+    MaxHealth
+        { maxHealthNum :: !Int
+        , maxHealthMax :: !Int
+        }
+    deriving (Show, Eq, Generic, NFData)
+
+instance Serialize MaxHealth where
+    put h@MaxHealth {..} = do
+        put $ isOK h
+        put maxHealthNum
+        put maxHealthMax
+    get = do
+        k <- get
+        maxHealthNum <- get
+        maxHealthMax <- get
+        let h = MaxHealth {..}
+        guard (k == isOK h)
+        return h
+
+instance Healthy MaxHealth where
+    isOK MaxHealth {..} = maxHealthNum <= maxHealthMax
+
+instance ToJSON MaxHealth where
+    toJSON h@MaxHealth {..} =
+        object
+            [ "count" .= maxHealthNum
+            , "max"   .= maxHealthMax
+            , "ok"    .= isOK h
+            ]
+
+instance FromJSON MaxHealth where
+    parseJSON =
+        A.withObject "MaxHealth" $ \o -> do
+            maxHealthNum <- o .: "count"
+            maxHealthMax <- o .: "max"
+            return MaxHealth {..}
+
 data HealthCheck =
     HealthCheck
         { healthBlocks     :: !BlockHealth
         , healthLastBlock  :: !TimeHealth
         , healthLastTx     :: !TimeHealth
+        , healthPendingTxs :: !MaxHealth
         , healthPeers      :: !CountHealth
         , healthNetwork    :: !String
         , healthVersion    :: !String
@@ -1253,6 +1293,7 @@
         put healthBlocks
         put healthLastBlock
         put healthLastTx
+        put healthPendingTxs
         put healthPeers
         put healthNetwork
         put healthVersion
@@ -1261,6 +1302,7 @@
         healthBlocks        <- get
         healthLastBlock     <- get
         healthLastTx        <- get
+        healthPendingTxs    <- get
         healthPeers         <- get
         healthNetwork       <- get
         healthVersion       <- get
@@ -1273,6 +1315,7 @@
         isOK healthBlocks &&
         isOK healthLastBlock &&
         isOK healthLastTx &&
+        isOK healthPendingTxs &&
         isOK healthPeers
 
 instance ToJSON HealthCheck where
@@ -1281,6 +1324,7 @@
             [ "blocks"      .= healthBlocks
             , "last-block"  .= healthLastBlock
             , "last-tx"     .= healthLastTx
+            , "pending-txs" .= healthPendingTxs
             , "peers"       .= healthPeers
             , "net"         .= healthNetwork
             , "version"     .= healthVersion
@@ -1290,12 +1334,13 @@
 instance FromJSON HealthCheck where
     parseJSON =
         A.withObject "HealthCheck" $ \o -> do
-            healthBlocks    <- o .: "blocks"
-            healthLastBlock <- o .: "last-block"
-            healthLastTx    <- o .: "last-tx"
-            healthPeers     <- o .: "peers"
-            healthNetwork   <- o .: "net"
-            healthVersion   <- o .: "version"
+            healthBlocks     <- o .: "blocks"
+            healthLastBlock  <- o .: "last-block"
+            healthLastTx     <- o .: "last-tx"
+            healthPendingTxs <- o .: "pending-txs"
+            healthPeers      <- o .: "peers"
+            healthNetwork    <- o .: "net"
+            healthVersion    <- o .: "version"
             return HealthCheck {..}
 
 data Event
diff --git a/test/Haskoin/Store/DataSpec.hs b/test/Haskoin/Store/DataSpec.hs
--- a/test/Haskoin/Store/DataSpec.hs
+++ b/test/Haskoin/Store/DataSpec.hs
@@ -218,10 +218,17 @@
             <$> arbitrary
             <*> arbitrary
 
+instance Arbitrary MaxHealth where
+    arbitrary =
+        MaxHealth
+            <$> arbitrary
+            <*> arbitrary
+
 instance Arbitrary HealthCheck where
     arbitrary =
         HealthCheck
             <$> arbitrary
+            <*> arbitrary
             <*> arbitrary
             <*> arbitrary
             <*> arbitrary