diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 331d27f9e..e93bb367d 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.517.0"
+  ".": "0.518.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 99fcf85bd..bf45bd24b 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 241
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-c073272ef500d513b8cbfb34d34df2d533037ac9154417004dc9071cbc60357e.yml
-openapi_spec_hash: 45bfadd7b28234485f1064ae5bd4edfc
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-05341d7f8aa36455db1b6bb5f613a08ee7c7beba3e868c7e18befe429cfd7625.yml
+openapi_spec_hash: 321b419c81281651e70db5ab2549af67
 config_hash: cb5b8736705c06b670f6a25484622d62
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a3953ce8c..cf4ee4f56 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.518.0 (2026-04-16)
+
+Full Changelog: [v0.517.0...v0.518.0](https://github.com/Increase/increase-java/compare/v0.517.0...v0.518.0)
+
+### Features
+
+* **api:** api update ([036c7e4](https://github.com/Increase/increase-java/commit/036c7e44423b9d0dc6c27024bfc719eba276ffa8))
+
 ## 0.517.0 (2026-04-15)
 
 Full Changelog: [v0.516.0...v0.517.0](https://github.com/Increase/increase-java/compare/v0.516.0...v0.517.0)
diff --git a/README.md b/README.md
index 3bd6cf910..dab84bb4f 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 <!-- x-release-please-start-version -->
 
-[![Maven Central](https://img.shields.io/maven-central/v/com.increase.api/increase-java)](https://central.sonatype.com/artifact/com.increase.api/increase-java/0.517.0)
-[![javadoc](https://javadoc.io/badge2/com.increase.api/increase-java/0.517.0/javadoc.svg)](https://javadoc.io/doc/com.increase.api/increase-java/0.517.0)
+[![Maven Central](https://img.shields.io/maven-central/v/com.increase.api/increase-java)](https://central.sonatype.com/artifact/com.increase.api/increase-java/0.518.0)
+[![javadoc](https://javadoc.io/badge2/com.increase.api/increase-java/0.518.0/javadoc.svg)](https://javadoc.io/doc/com.increase.api/increase-java/0.518.0)
 
 <!-- x-release-please-end -->
 
@@ -13,7 +13,7 @@ The Increase Java SDK is similar to the Increase Kotlin SDK but with minor diffe
 
 <!-- x-release-please-start-version -->
 
-The REST API documentation can be found on [increase.com](https://increase.com/documentation). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.increase.api/increase-java/0.517.0).
+The REST API documentation can be found on [increase.com](https://increase.com/documentation). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.increase.api/increase-java/0.518.0).
 
 <!-- x-release-please-end -->
 
@@ -24,7 +24,7 @@ The REST API documentation can be found on [increase.com](https://increase.com/d
 ### Gradle
 
 ```kotlin
-implementation("com.increase.api:increase-java:0.517.0")
+implementation("com.increase.api:increase-java:0.518.0")
 ```
 
 ### Maven
@@ -33,7 +33,7 @@ implementation("com.increase.api:increase-java:0.517.0")
 <dependency>
   <groupId>com.increase.api</groupId>
   <artifactId>increase-java</artifactId>
-  <version>0.517.0</version>
+  <version>0.518.0</version>
 </dependency>
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 41936ea3d..70d0cb107 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ repositories {
 
 allprojects {
     group = "com.increase.api"
-    version = "0.517.0" // x-release-please-version
+    version = "0.518.0" // x-release-please-version
 }
 
 subprojects {
diff --git a/increase-java-core/src/main/kotlin/com/increase/api/models/wiretransfers/WireTransfer.kt b/increase-java-core/src/main/kotlin/com/increase/api/models/wiretransfers/WireTransfer.kt
index cb68787a5..f663b4ad3 100644
--- a/increase-java-core/src/main/kotlin/com/increase/api/models/wiretransfers/WireTransfer.kt
+++ b/increase-java-core/src/main/kotlin/com/increase/api/models/wiretransfers/WireTransfer.kt
@@ -51,6 +51,7 @@ private constructor(
     private val submission: JsonField<Submission>,
     private val transactionId: JsonField<String>,
     private val type: JsonField<Type>,
+    private val uniqueEndToEndTransactionReference: JsonField<String>,
     private val additionalProperties: MutableMap<String, JsonValue>,
 ) {
 
@@ -106,6 +107,9 @@ private constructor(
         @ExcludeMissing
         transactionId: JsonField<String> = JsonMissing.of(),
         @JsonProperty("type") @ExcludeMissing type: JsonField<Type> = JsonMissing.of(),
+        @JsonProperty("unique_end_to_end_transaction_reference")
+        @ExcludeMissing
+        uniqueEndToEndTransactionReference: JsonField<String> = JsonMissing.of(),
     ) : this(
         id,
         accountId,
@@ -131,6 +135,7 @@ private constructor(
         submission,
         transactionId,
         type,
+        uniqueEndToEndTransactionReference,
         mutableMapOf(),
     )
 
@@ -339,6 +344,17 @@ private constructor(
      */
     fun type(): Type = type.getRequired("type")
 
+    /**
+     * The unique end-to-end transaction reference
+     * ([UETR](https://www.swift.com/payments/what-unique-end-end-transaction-reference-uetr)) of
+     * the transfer.
+     *
+     * @throws IncreaseInvalidDataException if the JSON field has an unexpected type (e.g. if the
+     *   server responded with an unexpected value).
+     */
+    fun uniqueEndToEndTransactionReference(): Optional<String> =
+        uniqueEndToEndTransactionReference.getOptional("unique_end_to_end_transaction_reference")
+
     /**
      * Returns the raw JSON value of [id].
      *
@@ -535,6 +551,17 @@ private constructor(
      */
     @JsonProperty("type") @ExcludeMissing fun _type(): JsonField<Type> = type
 
+    /**
+     * Returns the raw JSON value of [uniqueEndToEndTransactionReference].
+     *
+     * Unlike [uniqueEndToEndTransactionReference], this method doesn't throw if the JSON field has
+     * an unexpected type.
+     */
+    @JsonProperty("unique_end_to_end_transaction_reference")
+    @ExcludeMissing
+    fun _uniqueEndToEndTransactionReference(): JsonField<String> =
+        uniqueEndToEndTransactionReference
+
     @JsonAnySetter
     private fun putAdditionalProperty(key: String, value: JsonValue) {
         additionalProperties.put(key, value)
@@ -578,6 +605,7 @@ private constructor(
          * .submission()
          * .transactionId()
          * .type()
+         * .uniqueEndToEndTransactionReference()
          * ```
          */
         @JvmStatic fun builder() = Builder()
@@ -610,6 +638,7 @@ private constructor(
         private var submission: JsonField<Submission>? = null
         private var transactionId: JsonField<String>? = null
         private var type: JsonField<Type>? = null
+        private var uniqueEndToEndTransactionReference: JsonField<String>? = null
         private var additionalProperties: MutableMap<String, JsonValue> = mutableMapOf()
 
         @JvmSynthetic
@@ -638,6 +667,7 @@ private constructor(
             submission = wireTransfer.submission
             transactionId = wireTransfer.transactionId
             type = wireTransfer.type
+            uniqueEndToEndTransactionReference = wireTransfer.uniqueEndToEndTransactionReference
             additionalProperties = wireTransfer.additionalProperties.toMutableMap()
         }
 
@@ -1032,6 +1062,35 @@ private constructor(
          */
         fun type(type: JsonField<Type>) = apply { this.type = type }
 
+        /**
+         * The unique end-to-end transaction reference
+         * ([UETR](https://www.swift.com/payments/what-unique-end-end-transaction-reference-uetr))
+         * of the transfer.
+         */
+        fun uniqueEndToEndTransactionReference(uniqueEndToEndTransactionReference: String?) =
+            uniqueEndToEndTransactionReference(
+                JsonField.ofNullable(uniqueEndToEndTransactionReference)
+            )
+
+        /**
+         * Alias for calling [Builder.uniqueEndToEndTransactionReference] with
+         * `uniqueEndToEndTransactionReference.orElse(null)`.
+         */
+        fun uniqueEndToEndTransactionReference(
+            uniqueEndToEndTransactionReference: Optional<String>
+        ) = uniqueEndToEndTransactionReference(uniqueEndToEndTransactionReference.getOrNull())
+
+        /**
+         * Sets [Builder.uniqueEndToEndTransactionReference] to an arbitrary JSON value.
+         *
+         * You should usually call [Builder.uniqueEndToEndTransactionReference] with a well-typed
+         * [String] value instead. This method is primarily for setting the field to an undocumented
+         * or not yet supported value.
+         */
+        fun uniqueEndToEndTransactionReference(
+            uniqueEndToEndTransactionReference: JsonField<String>
+        ) = apply { this.uniqueEndToEndTransactionReference = uniqueEndToEndTransactionReference }
+
         fun additionalProperties(additionalProperties: Map<String, JsonValue>) = apply {
             this.additionalProperties.clear()
             putAllAdditionalProperties(additionalProperties)
@@ -1082,6 +1141,7 @@ private constructor(
          * .submission()
          * .transactionId()
          * .type()
+         * .uniqueEndToEndTransactionReference()
          * ```
          *
          * @throws IllegalStateException if any required field is unset.
@@ -1112,6 +1172,10 @@ private constructor(
                 checkRequired("submission", submission),
                 checkRequired("transactionId", transactionId),
                 checkRequired("type", type),
+                checkRequired(
+                    "uniqueEndToEndTransactionReference",
+                    uniqueEndToEndTransactionReference,
+                ),
                 additionalProperties.toMutableMap(),
             )
     }
@@ -1147,6 +1211,7 @@ private constructor(
         submission().ifPresent { it.validate() }
         transactionId()
         type().validate()
+        uniqueEndToEndTransactionReference()
         validated = true
     }
 
@@ -1188,7 +1253,8 @@ private constructor(
             (status.asKnown().getOrNull()?.validity() ?: 0) +
             (submission.asKnown().getOrNull()?.validity() ?: 0) +
             (if (transactionId.asKnown().isPresent) 1 else 0) +
-            (type.asKnown().getOrNull()?.validity() ?: 0)
+            (type.asKnown().getOrNull()?.validity() ?: 0) +
+            (if (uniqueEndToEndTransactionReference.asKnown().isPresent) 1 else 0)
 
     /**
      * If your account requires approvals for transfers and the transfer was approved, this will
@@ -6358,6 +6424,7 @@ private constructor(
             submission == other.submission &&
             transactionId == other.transactionId &&
             type == other.type &&
+            uniqueEndToEndTransactionReference == other.uniqueEndToEndTransactionReference &&
             additionalProperties == other.additionalProperties
     }
 
@@ -6387,6 +6454,7 @@ private constructor(
             submission,
             transactionId,
             type,
+            uniqueEndToEndTransactionReference,
             additionalProperties,
         )
     }
@@ -6394,5 +6462,5 @@ private constructor(
     override fun hashCode(): Int = hashCode
 
     override fun toString() =
-        "WireTransfer{id=$id, accountId=$accountId, accountNumber=$accountNumber, amount=$amount, approval=$approval, cancellation=$cancellation, createdAt=$createdAt, createdBy=$createdBy, creditor=$creditor, currency=$currency, debtor=$debtor, externalAccountId=$externalAccountId, idempotencyKey=$idempotencyKey, inboundWireDrawdownRequestId=$inboundWireDrawdownRequestId, network=$network, pendingTransactionId=$pendingTransactionId, remittance=$remittance, reversal=$reversal, routingNumber=$routingNumber, sourceAccountNumberId=$sourceAccountNumberId, status=$status, submission=$submission, transactionId=$transactionId, type=$type, additionalProperties=$additionalProperties}"
+        "WireTransfer{id=$id, accountId=$accountId, accountNumber=$accountNumber, amount=$amount, approval=$approval, cancellation=$cancellation, createdAt=$createdAt, createdBy=$createdBy, creditor=$creditor, currency=$currency, debtor=$debtor, externalAccountId=$externalAccountId, idempotencyKey=$idempotencyKey, inboundWireDrawdownRequestId=$inboundWireDrawdownRequestId, network=$network, pendingTransactionId=$pendingTransactionId, remittance=$remittance, reversal=$reversal, routingNumber=$routingNumber, sourceAccountNumberId=$sourceAccountNumberId, status=$status, submission=$submission, transactionId=$transactionId, type=$type, uniqueEndToEndTransactionReference=$uniqueEndToEndTransactionReference, additionalProperties=$additionalProperties}"
 }
diff --git a/increase-java-core/src/test/kotlin/com/increase/api/models/wiretransfers/WireTransferListPageResponseTest.kt b/increase-java-core/src/test/kotlin/com/increase/api/models/wiretransfers/WireTransferListPageResponseTest.kt
index 6d43db788..addbd52a7 100644
--- a/increase-java-core/src/test/kotlin/com/increase/api/models/wiretransfers/WireTransferListPageResponseTest.kt
+++ b/increase-java-core/src/test/kotlin/com/increase/api/models/wiretransfers/WireTransferListPageResponseTest.kt
@@ -138,6 +138,7 @@ internal class WireTransferListPageResponseTest {
                         )
                         .transactionId("transaction_uyrp7fld2ium70oa7oi")
                         .type(WireTransfer.Type.WIRE_TRANSFER)
+                        .uniqueEndToEndTransactionReference(null)
                         .build()
                 )
                 .nextCursor("v57w5d")
@@ -267,6 +268,7 @@ internal class WireTransferListPageResponseTest {
                     )
                     .transactionId("transaction_uyrp7fld2ium70oa7oi")
                     .type(WireTransfer.Type.WIRE_TRANSFER)
+                    .uniqueEndToEndTransactionReference(null)
                     .build()
             )
         assertThat(wireTransferListPageResponse.nextCursor()).contains("v57w5d")
@@ -400,6 +402,7 @@ internal class WireTransferListPageResponseTest {
                         )
                         .transactionId("transaction_uyrp7fld2ium70oa7oi")
                         .type(WireTransfer.Type.WIRE_TRANSFER)
+                        .uniqueEndToEndTransactionReference(null)
                         .build()
                 )
                 .nextCursor("v57w5d")
diff --git a/increase-java-core/src/test/kotlin/com/increase/api/models/wiretransfers/WireTransferTest.kt b/increase-java-core/src/test/kotlin/com/increase/api/models/wiretransfers/WireTransferTest.kt
index ddba59fac..e9e120351 100644
--- a/increase-java-core/src/test/kotlin/com/increase/api/models/wiretransfers/WireTransferTest.kt
+++ b/increase-java-core/src/test/kotlin/com/increase/api/models/wiretransfers/WireTransferTest.kt
@@ -132,6 +132,7 @@ internal class WireTransferTest {
                 )
                 .transactionId("transaction_uyrp7fld2ium70oa7oi")
                 .type(WireTransfer.Type.WIRE_TRANSFER)
+                .uniqueEndToEndTransactionReference(null)
                 .build()
 
         assertThat(wireTransfer.id()).isEqualTo("wire_transfer_5akynk7dqsq25qwk9q2u")
@@ -256,6 +257,7 @@ internal class WireTransferTest {
             )
         assertThat(wireTransfer.transactionId()).contains("transaction_uyrp7fld2ium70oa7oi")
         assertThat(wireTransfer.type()).isEqualTo(WireTransfer.Type.WIRE_TRANSFER)
+        assertThat(wireTransfer.uniqueEndToEndTransactionReference()).isEmpty
     }
 
     @Test
@@ -380,6 +382,7 @@ internal class WireTransferTest {
                 )
                 .transactionId("transaction_uyrp7fld2ium70oa7oi")
                 .type(WireTransfer.Type.WIRE_TRANSFER)
+                .uniqueEndToEndTransactionReference(null)
                 .build()
 
         val roundtrippedWireTransfer =