diff --git a/marketplace/scripts/api.ts b/marketplace/scripts/api.ts
index 70c6f01..507de5b 100644
--- a/marketplace/scripts/api.ts
+++ b/marketplace/scripts/api.ts
@@ -38,18 +38,28 @@ const writeContract = async (functionName:string, args: any[]) => {
 
 // watches for the TokenPurchased event emitted during the purchaseToken function call. 
 // This will be used to trigger the redeem function call.
-export const unwatch = publicClient.watchEvent({
+export const unwatchPurchase = publicClient.watchEvent({
   address: CONTRACT as `0x${string}`,
   event: parseAbiItem('event TokenPurchased(uint256 indexed id, address indexed buyer)'), 
   // TO DO - call function with logs to derive public key https://viem.sh/docs/utilities/recoverPublicKey#recoverpublickey
   onLogs: logs => console.log(logs) 
 })
 
+// watches for the TokenPurchased event emitted during the purchaseToken function call. 
+// This will be used to trigger the redeem function call.
+export const unwatchRedeem = publicClient.watchEvent({
+    address: CONTRACT as `0x${string}`,
+    event: parseAbiItem('event ExploitRedeemed(uint256 indexed id, address indexed buyer)'), 
+    // TO DO - call function with logs to derive public key https://viem.sh/docs/utilities/recoverPublicKey#recoverpublickey
+    onLogs: logs => console.log(logs) 
+  })
+  
+
 // A White Hat Hacker can post an exploit to the marketplace
 export const postExploit = async (description:string, price:bigint, hash:bigint) => await writeContract('postExploit', [description, price, hash])
 
 // A vendor can purchase the exploit token from the marketplace
-export const purchaseToken = async (tokenId:number, publicKey:bigint[]) => await writeContract('purchaseToken', [tokenId, publicKey])
+export const purchaseToken = async (tokenId:number) => await writeContract('purchaseToken', [tokenId])
 
 // The White Hat Hacker uses the vendor's public key derived from the purchaseToken transaction to compute the proofs and receive the payment
 export const redeem = async (tokenId:number, key:bigint) => await writeContract('redeemExploit', [tokenId, key])