diff --git a/packages/rest-api/src/routes/bridgeRoute.ts b/packages/rest-api/src/routes/bridgeRoute.ts
index 63e8e76300..4c6a0a610e 100644
--- a/packages/rest-api/src/routes/bridgeRoute.ts
+++ b/packages/rest-api/src/routes/bridgeRoute.ts
@@ -15,17 +15,17 @@ router.get(
   checksumAddresses(['fromToken', 'toToken']),
   [
     check('fromChain')
+      .exists()
+      .withMessage('fromChain is required')
       .isNumeric()
       .custom((value) => CHAINS_ARRAY.some((c) => c.id === Number(value)))
-      .withMessage('Unsupported fromChain')
-      .exists()
-      .withMessage('fromChain is required'),
+      .withMessage('Unsupported fromChain'),
     check('toChain')
+      .exists()
+      .withMessage('toChain is required')
       .isNumeric()
       .custom((value) => CHAINS_ARRAY.some((c) => c.id === Number(value)))
-      .withMessage('Unsupported toChain')
-      .exists()
-      .withMessage('toChain is required'),
+      .withMessage('Unsupported toChain'),
     check('fromToken')
       .exists()
       .withMessage('fromToken is required')
diff --git a/packages/rest-api/src/routes/bridgeTxInfoRoute.ts b/packages/rest-api/src/routes/bridgeTxInfoRoute.ts
index f17771be1d..c4c9dc38c7 100644
--- a/packages/rest-api/src/routes/bridgeTxInfoRoute.ts
+++ b/packages/rest-api/src/routes/bridgeTxInfoRoute.ts
@@ -16,17 +16,17 @@ router.get(
   checksumAddresses(['fromToken', 'toToken']),
   [
     check('fromChain')
+      .exists()
+      .withMessage('fromChain is required')
       .isNumeric()
       .custom((value) => CHAINS_ARRAY.some((c) => c.id === Number(value)))
-      .withMessage('Unsupported fromChain')
-      .exists()
-      .withMessage('fromChain is required'),
+      .withMessage('Unsupported fromChain'),
     check('toChain')
+      .exists()
+      .withMessage('toChain is required')
       .isNumeric()
       .custom((value) => CHAINS_ARRAY.some((c) => c.id === Number(value)))
-      .withMessage('Unsupported toChain')
-      .exists()
-      .withMessage('toChain is required'),
+      .withMessage('Unsupported toChain'),
     check('fromToken')
       .exists()
       .withMessage('fromToken is required')
@@ -45,7 +45,7 @@ router.get(
         isTokenSupportedOnChain(value, req.query.toChain as string)
       )
       .withMessage('Token not supported on specified chain'),
-    check('amount').isNumeric().exists().withMessage('amount is required'),
+    check('amount').exists().withMessage('amount is required').isNumeric(),
     check('destAddress')
       .exists()
       .withMessage('destAddress is required')
diff --git a/packages/rest-api/src/routes/getBridgeTxStatusRoute.ts b/packages/rest-api/src/routes/getBridgeTxStatusRoute.ts
index cc72b8ec41..d4e897422c 100644
--- a/packages/rest-api/src/routes/getBridgeTxStatusRoute.ts
+++ b/packages/rest-api/src/routes/getBridgeTxStatusRoute.ts
@@ -12,24 +12,24 @@ router.get(
   '/',
   [
     check('destChainId')
+      .exists()
+      .withMessage('destChainId is required')
       .isNumeric()
       .custom((value) => CHAINS_ARRAY.some((c) => c.id === Number(value)))
-      .withMessage('Unsupported destChainId')
-      .exists()
-      .withMessage('destChainId is required'),
+      .withMessage('Unsupported destChainId'),
     check('bridgeModule')
+      .exists()
+      .withMessage('bridgeModule is required')
       .isString()
       .isIn(VALID_BRIDGE_MODULES)
       .withMessage(
         'Invalid bridge module. Must be one of: ' +
           VALID_BRIDGE_MODULES.join(', ')
-      )
-      .exists()
-      .withMessage('bridgeModule is required'),
+      ),
     check('synapseTxId')
-      .isString()
       .exists()
-      .withMessage('synapseTxId is required'),
+      .withMessage('synapseTxId is required')
+      .isString(),
   ],
   showFirstValidationError,
   getBridgeTxStatusController
diff --git a/packages/rest-api/src/routes/getDestinationTxRoute.ts b/packages/rest-api/src/routes/getDestinationTxRoute.ts
index 5c15f6205a..fc54d07df1 100644
--- a/packages/rest-api/src/routes/getDestinationTxRoute.ts
+++ b/packages/rest-api/src/routes/getDestinationTxRoute.ts
@@ -10,10 +10,10 @@ router.get(
   '/',
   [
     check('originChainId')
-      .isNumeric()
       .exists()
-      .withMessage('originChainId is required'),
-    check('txHash').isString().exists().withMessage('txHash is required'),
+      .withMessage('originChainId is required')
+      .isNumeric(),
+    check('txHash').exists().withMessage('txHash is required').isString(),
   ],
   showFirstValidationError,
   getDestinationTxController
diff --git a/packages/rest-api/src/routes/getSynapseTxIdRoute.ts b/packages/rest-api/src/routes/getSynapseTxIdRoute.ts
index 7ea582171c..ca0a1f955b 100644
--- a/packages/rest-api/src/routes/getSynapseTxIdRoute.ts
+++ b/packages/rest-api/src/routes/getSynapseTxIdRoute.ts
@@ -11,19 +11,19 @@ router.get(
   '/',
   [
     check('originChainId')
-      .isNumeric()
       .exists()
-      .withMessage('originChainId is required'),
+      .withMessage('originChainId is required')
+      .isNumeric(),
     check('bridgeModule')
+      .exists()
+      .withMessage('bridgeModule is required')
       .isString()
       .isIn(VALID_BRIDGE_MODULES)
       .withMessage(
         'Invalid bridge module. Must be one of: ' +
           VALID_BRIDGE_MODULES.join(', ')
-      )
-      .exists()
-      .withMessage('bridgeModule is required'),
-    check('txHash').isString().exists().withMessage('txHash is required'),
+      ),
+    check('txHash').exists().withMessage('txHash is required').isString(),
   ],
   showFirstValidationError,
   getSynapseTxIdController
diff --git a/packages/rest-api/src/routes/swapRoute.ts b/packages/rest-api/src/routes/swapRoute.ts
index 964119c199..e265305805 100644
--- a/packages/rest-api/src/routes/swapRoute.ts
+++ b/packages/rest-api/src/routes/swapRoute.ts
@@ -15,11 +15,11 @@ router.get(
   checksumAddresses(['fromToken', 'toToken']),
   [
     check('chain')
+      .exists()
+      .withMessage('chain is required')
       .isNumeric()
       .custom((value) => CHAINS_ARRAY.some((c) => c.id === Number(value)))
-      .withMessage('Unsupported chain')
-      .exists()
-      .withMessage('chain is required'),
+      .withMessage('Unsupported chain'),
     check('fromToken')
       .exists()
       .withMessage('fromToken is required')
@@ -38,7 +38,7 @@ router.get(
         isTokenSupportedOnChain(value, req.query.chain as string)
       )
       .withMessage('Token not supported on specified chain'),
-    check('amount').isNumeric().exists().withMessage('amount is required'),
+    check('amount').exists().withMessage('amount is required').isNumeric(),
   ],
   showFirstValidationError,
   swapController
diff --git a/packages/rest-api/src/routes/swapTxInfoRoute.ts b/packages/rest-api/src/routes/swapTxInfoRoute.ts
index 8d85530fee..8ecba8256b 100644
--- a/packages/rest-api/src/routes/swapTxInfoRoute.ts
+++ b/packages/rest-api/src/routes/swapTxInfoRoute.ts
@@ -16,11 +16,11 @@ router.get(
   checksumAddresses(['fromToken', 'toToken']),
   [
     check('chain')
+      .exists()
+      .withMessage('chain is required')
       .isNumeric()
       .custom((value) => CHAINS_ARRAY.some((c) => c.id === Number(value)))
-      .withMessage('Unsupported chain')
-      .exists()
-      .withMessage('chain is required'),
+      .withMessage('Unsupported chain'),
     check('fromToken')
       .exists()
       .withMessage('fromToken is required')
diff --git a/packages/rest-api/src/utils/bridgeRouteMapping.ts b/packages/rest-api/src/utils/bridgeRouteMapping.ts
index 1cb537c181..996652e543 100644
--- a/packages/rest-api/src/utils/bridgeRouteMapping.ts
+++ b/packages/rest-api/src/utils/bridgeRouteMapping.ts
@@ -73,12 +73,27 @@ const transformPair = (string: string): any => {
   }
 }
 
-const transformBridgeRouteValues = (routes: StringifiedBridgeRoutes) => {
+const transformBridgeRouteValues = (
+  routes: StringifiedBridgeRoutes
+): TransformedBridgeRoutes => {
   return Object.fromEntries(
-    Object.entries(routes).map(([key, values]) => [
-      key,
-      values.map(transformPair).filter((pair) => pair !== undefined),
-    ])
+    Object.entries(routes).map(([key, values]) => {
+      const uniquePairs: TokenData[] = []
+      values.forEach((pairStr) => {
+        const transformedPair = transformPair(pairStr)
+        if (
+          transformedPair &&
+          !uniquePairs.some(
+            (pair) =>
+              pair.symbol === transformedPair.symbol &&
+              pair.chainId === transformedPair.chainId
+          )
+        ) {
+          uniquePairs.push(transformedPair)
+        }
+      })
+      return [key, uniquePairs]
+    })
   )
 }