diff --git a/lightspark-sdk/src/commonJvmAndroidMain/kotlin/com/lightspark/sdk/LightsparkFuturesClient.kt b/lightspark-sdk/src/commonJvmAndroidMain/kotlin/com/lightspark/sdk/LightsparkFuturesClient.kt
index 81e51d48..8df0b82c 100644
--- a/lightspark-sdk/src/commonJvmAndroidMain/kotlin/com/lightspark/sdk/LightsparkFuturesClient.kt
+++ b/lightspark-sdk/src/commonJvmAndroidMain/kotlin/com/lightspark/sdk/LightsparkFuturesClient.kt
@@ -846,6 +846,17 @@ class LightsparkFuturesClient(config: ClientConfig) {
         coroutineScope.future {
             coroutinesClient.createUmaInvitationWithPayment(inviterUma, paymentAmount, paymentCurrency, expiresAt)
         }
+
+    /**
+     * Cancels an UMA invitation.
+     *
+     * @param inviteCode The code of the invitation to cancel.
+     * @return The cancelled invitation.
+     */
+    fun cancelUmaInvitation(inviteCode: String): CompletableFuture<UmaInvitation> =
+        coroutineScope.future {
+            coroutinesClient.cancelUmaInvitation(inviteCode)
+        }
 }
 
 fun <T> Query<T>.execute(client: LightsparkFuturesClient): CompletableFuture<T> = client.executeQuery(this)
diff --git a/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/LightsparkCoroutinesClient.kt b/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/LightsparkCoroutinesClient.kt
index df6ea6da..f2d222b0 100644
--- a/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/LightsparkCoroutinesClient.kt
+++ b/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/LightsparkCoroutinesClient.kt
@@ -1393,6 +1393,30 @@ class LightsparkCoroutinesClient private constructor(
         )
     }
 
+    /**
+     * Cancels an UMA invitation.
+     *
+     * @param inviteCode The code of the invitation to cancel.
+     * @return The cancelled invitation.
+     */
+    suspend fun cancelUmaInvitation(inviteCode: String): UmaInvitation {
+        requireValidAuth()
+        return executeQuery(
+            Query(
+                CancelUmaInvitation,
+                {
+                    add("invite_code", inviteCode)
+                },
+            ) {
+                val outputJson =
+                    requireNotNull(it["cancel_uma_invitation"]) { "No invitation output found in response" }
+                val invitationJson =
+                    requireNotNull(outputJson.jsonObject["invitation"]) { "No invitation found in response" }
+                serializerFormat.decodeFromJsonElement(invitationJson)
+            },
+        )
+    }
+
     suspend fun <T> executeQuery(query: Query<T>): T {
         return requester.executeQuery(query)
     }
diff --git a/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/LightsparkSyncClient.kt b/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/LightsparkSyncClient.kt
index 4cb5c7db..eea641c5 100644
--- a/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/LightsparkSyncClient.kt
+++ b/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/LightsparkSyncClient.kt
@@ -793,6 +793,17 @@ class LightsparkSyncClient constructor(config: ClientConfig) {
         asyncClient.fetchUmaInvitation(invitationCode)
     }
 
+    /**
+     * Cancels an UMA invitation.
+     *
+     * @param inviteCode The code of the invitation to cancel.
+     * @return The cancelled invitation.
+     */
+    @Throws(LightsparkException::class, LightsparkAuthenticationException::class, CancellationException::class)
+    fun cancelUmaInvitation(inviteCode: String): UmaInvitation = runBlocking {
+        asyncClient.cancelUmaInvitation(inviteCode)
+    }
+
     fun <T> executeQuery(query: Query<T>): T = runBlocking { asyncClient.executeQuery(query) }
 
     fun setBitcoinNetwork(network: BitcoinNetwork) {
diff --git a/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/graphql/CancelUmaInvitation.kt b/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/graphql/CancelUmaInvitation.kt
new file mode 100644
index 00000000..1e30086e
--- /dev/null
+++ b/lightspark-sdk/src/commonMain/kotlin/com/lightspark/sdk/graphql/CancelUmaInvitation.kt
@@ -0,0 +1,19 @@
+package com.lightspark.sdk.graphql
+
+import com.lightspark.sdk.model.UmaInvitation
+
+const val CancelUmaInvitation = """
+    mutation CancelUmaInvitation(
+        ${'$'}invite_code: String!
+    ) {
+        cancel_uma_invitation(input: {
+            invite_code: ${'$'}invite_code
+        }) {
+            invitation {
+                ...UmaInvitationFragment
+            }
+        }
+    }
+
+${UmaInvitation.FRAGMENT}
+""" 
\ No newline at end of file