diff --git a/api/_constants.ts b/api/_constants.ts
index 0a1c3068d..a1cb05615 100644
--- a/api/_constants.ts
+++ b/api/_constants.ts
@@ -87,6 +87,12 @@ const defaultRelayerFeeCapitalCostConfig: {
     cutoff: ethers.utils.parseUnits("100000").toString(),
     decimals: 18,
   },
+  SNX: {
+    lowerBound: ethers.utils.parseUnits("0.0001").toString(),
+    upperBound: ethers.utils.parseUnits("0.0005").toString(),
+    cutoff: ethers.utils.parseUnits("10000").toString(),
+    decimals: 18,
+  },
 };
 
 const relayerFeeCapitalCostOverrides: Record<