diff --git a/sdk/js/src/utils/array.test.ts b/sdk/js/src/utils/array.test.ts
index 27cce9fc3..559e463e8 100644
--- a/sdk/js/src/utils/array.test.ts
+++ b/sdk/js/src/utils/array.test.ts
@@ -1,6 +1,6 @@
 import { zeroPad } from "ethers/lib/utils";
-import { tryUint8ArrayToNative } from "./array";
 import { canonicalAddress } from "../cosmos";
+import { tryUint8ArrayToNative, tryNativeToHexString } from "./array";
 
 test("terra address conversion", () => {
   const human = "terra1x46rqay4d3cssq8gxxvqz8xt6nwlz4td20k38v";
@@ -18,3 +18,12 @@ test("terra address conversion", () => {
   expect(nativeContract).toBe(nativeContract);
   // TODO: native to hex is wrong, which we should correct
 });
+
+test("wormchain address conversion", () => {
+    const human = "wormhole1ap5vgur5zlgys8whugfegnn43emka567dtq0jl";
+    const canonical = "000000000000000000000000e868c4707417d0481dd7e213944e758e776ed35e";
+    const native = tryUint8ArrayToNative(new Uint8Array(Buffer.from(canonical, "hex")), "wormholechain");
+    expect(native).toBe(human);
+
+    expect(tryNativeToHexString(human, "wormholechain")).toBe(canonical)
+});
diff --git a/sdk/js/src/utils/array.ts b/sdk/js/src/utils/array.ts
index 0baa55226..85eb4583a 100644
--- a/sdk/js/src/utils/array.ts
+++ b/sdk/js/src/utils/array.ts
@@ -21,6 +21,7 @@ import {
   CHAIN_ID_SOLANA,
   CHAIN_ID_TERRA,
   CHAIN_ID_TERRA2,
+  CHAIN_ID_WORMHOLE_CHAIN,
   CHAIN_ID_UNSET,
   coalesceChainId,
   isEVMChain,
@@ -89,6 +90,9 @@ export const tryUint8ArrayToNative = (
     }
   } else if (chainId === CHAIN_ID_ALGORAND) {
     return uint8ArrayToNativeStringAlgorand(a);
+  } else if (chainId == CHAIN_ID_WORMHOLE_CHAIN) {
+      // wormhole-chain addresses are always 20 bytes.
+      return humanAddress("wormhole", a.slice(-20));
   } else if (chainId === CHAIN_ID_NEAR) {
     throw Error("uint8ArrayToNative: Near not supported yet.");
   } else if (chainId === CHAIN_ID_INJECTIVE) {
@@ -207,6 +211,8 @@ export const tryNativeToHexString = (
     return buildTokenId(address);
   } else if (chainId === CHAIN_ID_ALGORAND) {
     return nativeStringToHexAlgorand(address);
+  } else if (chainId == CHAIN_ID_WORMHOLE_CHAIN) {
+      return uint8ArrayToHex(zeroPad(canonicalAddress(address), 32));
   } else if (chainId === CHAIN_ID_NEAR) {
     throw Error("hexToNativeString: Near not supported yet.");
   } else if (chainId === CHAIN_ID_INJECTIVE) {
diff --git a/sdk/js/src/utils/consts.ts b/sdk/js/src/utils/consts.ts
index c0ed4eb99..bc8869b9b 100644
--- a/sdk/js/src/utils/consts.ts
+++ b/sdk/js/src/utils/consts.ts
@@ -27,6 +27,7 @@ export const CHAINS = {
   gnosis: 25,
   pythnet: 26,
   ropsten: 10001,
+  wormholechain: 3104,
 } as const;
 
 export type ChainName = keyof typeof CHAINS;
@@ -209,6 +210,11 @@ const MAINNET = {
     token_bridge: undefined,
     nft_bridge: undefined,
   },
+  wormholechain: {
+    core: undefined,
+    token_bridge: undefined,
+    nft_bridge: undefined,
+  },
 };
 
 const TESTNET = {
@@ -353,6 +359,11 @@ const TESTNET = {
     token_bridge: "0xF174F9A837536C449321df1Ca093Bb96948D5386",
     nft_bridge: "0x2b048Da40f69c8dc386a56705915f8E966fe1eba",
   },
+  wormholechain: {
+    core: undefined,
+    token_bridge: undefined,
+    nft_bridge: undefined,
+  },
 };
 
 const DEVNET = {
@@ -497,6 +508,11 @@ const DEVNET = {
     token_bridge: undefined,
     nft_bridge: undefined,
   },
+  wormholechain: {
+    core: "wormhole1ap5vgur5zlgys8whugfegnn43emka567dtq0jl",
+    token_bridge: "wormhole1zugu6cajc4z7ue29g9wnes9a5ep9cs7yu7rn3z",
+    nft_bridge: undefined,
+  },
 };
 
 /**
@@ -565,6 +581,7 @@ export const CHAIN_ID_OPTIMISM = CHAINS["optimism"];
 export const CHAIN_ID_GNOSIS = CHAINS["gnosis"];
 export const CHAIN_ID_PYTHNET = CHAINS["pythnet"];
 export const CHAIN_ID_ETHEREUM_ROPSTEN = CHAINS["ropsten"];
+export const CHAIN_ID_WORMHOLE_CHAIN = CHAINS["wormholechain"];
 
 // This inverts the [[CHAINS]] object so that we can look up a chain by id
 export type ChainIdToName = {