From 8535efc4f619bab342ee3bbf9e654bb57479a49e Mon Sep 17 00:00:00 2001
From: gabrielstoica <marius_gabriel1998@yahoo.com>
Date: Fri, 27 Feb 2026 18:29:14 +0200
Subject: [PATCH 1/2] fix: handle zero swap tx gas value in 'executeSwapQuote'

---
 packages/sdk/src/actions/executeSwapQuote.ts | 102 +++++++++----------
 1 file changed, 51 insertions(+), 51 deletions(-)

diff --git a/packages/sdk/src/actions/executeSwapQuote.ts b/packages/sdk/src/actions/executeSwapQuote.ts
index 7939a31..dd1a71d 100644
--- a/packages/sdk/src/actions/executeSwapQuote.ts
+++ b/packages/sdk/src/actions/executeSwapQuote.ts
@@ -13,68 +13,68 @@ export type SwapExecutionProgress = SwapTransactionProgress;
 
 type SwapTransactionProgress =
   | {
-      step: "approve";
-      status: "idle";
-    }
+    step: "approve";
+    status: "idle";
+  }
   | {
-      step: "approve";
-      status: "simulationPending";
-    }
+    step: "approve";
+    status: "simulationPending";
+  }
   | {
-      step: "approve";
-      status: "simulationSuccess";
-    }
+    step: "approve";
+    status: "simulationSuccess";
+  }
   | {
-      step: "approve";
-      status: "txPending";
-      txHash: Hash;
-    }
+    step: "approve";
+    status: "txPending";
+    txHash: Hash;
+  }
   | {
-      step: "approve";
-      status: "txSuccess";
-      txReceipt: TransactionReceipt;
-    }
+    step: "approve";
+    status: "txSuccess";
+    txReceipt: TransactionReceipt;
+  }
   | {
-      step: "swap";
-      status: "idle";
-    }
+    step: "swap";
+    status: "idle";
+  }
   | {
-      step: "swap";
-      status: "simulationPending";
-    }
+    step: "swap";
+    status: "simulationPending";
+  }
   | {
-      step: "swap";
-      status: "simulationSuccess";
-    }
+    step: "swap";
+    status: "simulationSuccess";
+  }
   | {
-      step: "swap";
-      status: "txPending";
-      txHash: Hash;
-    }
+    step: "swap";
+    status: "txPending";
+    txHash: Hash;
+  }
   | {
-      step: "swap";
-      status: "txSuccess";
-      txReceipt: TransactionReceipt;
-      depositId: bigint;
-      depositLog: ReturnType<typeof parseDepositLogs>;
-    }
+    step: "swap";
+    status: "txSuccess";
+    txReceipt: TransactionReceipt;
+    depositId: bigint;
+    depositLog: ReturnType<typeof parseDepositLogs>;
+  }
   | {
-      step: "fill";
-      status: "txPending";
-    }
+    step: "fill";
+    status: "txPending";
+  }
   | {
-      step: "fill";
-      status: "txSuccess";
-      txReceipt: TransactionReceipt;
-      fillTxTimestamp: bigint;
-      actionSuccess: boolean | undefined;
-      fillLog: ReturnType<typeof parseFillLogs>;
-    }
+    step: "fill";
+    status: "txSuccess";
+    txReceipt: TransactionReceipt;
+    fillTxTimestamp: bigint;
+    actionSuccess: boolean | undefined;
+    fillLog: ReturnType<typeof parseFillLogs>;
+  }
   | {
-      step: "approve" | "swap" | "fill";
-      status: "txError" | "error" | "simulationError";
-      error: Error;
-    };
+    step: "approve" | "swap" | "fill";
+    status: "txError" | "error" | "simulationError";
+    error: Error;
+  };
 
 /**
  * Params for {@link executeSwapQuote}.
@@ -269,7 +269,7 @@ export async function executeSwapQuote(
       to: swapTx.to as Address,
       data: swapTx.data as Hex,
       value: swapTx.value ? BigInt(swapTx.value) : 0n,
-      gas: swapTx.gas ? BigInt(swapTx.gas) : undefined,
+      gas: swapTx.gas && BigInt(swapTx.gas) > 0n ? BigInt(swapTx.gas) : undefined,
       maxFeePerGas: swapTx.maxFeePerGas
         ? BigInt(swapTx.maxFeePerGas)
         : undefined,

From 2b74fbf01e1c687760ea410db0ddf40d26246aa1 Mon Sep 17 00:00:00 2001
From: Dong-Ha Kim <dongha.kim210@gmail.com>
Date: Mon, 27 Apr 2026 16:02:17 +0700
Subject: [PATCH 2/2] chore: add changeset for zero swap gas fix

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 .changeset/fix-zero-gas-value.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/fix-zero-gas-value.md

diff --git a/.changeset/fix-zero-gas-value.md b/.changeset/fix-zero-gas-value.md
new file mode 100644
index 0000000..a11c48f
--- /dev/null
+++ b/.changeset/fix-zero-gas-value.md
@@ -0,0 +1,5 @@
+---
+"@across-protocol/app-sdk": patch
+---
+
+Fix `executeSwapQuote` passing `gas: 0n` to the simulation call when `swapTx.gas` is zero. Some RPC providers (e.g. Alchemy on testnets) reject `eth_call` with `gas: "0x0"` as `IntrinsicGasTooLowError`. Zero-ish gas values are now treated as unset.