diff --git a/js/packages/core/src/__tests__/smoke.test.ts b/js/packages/core/src/__tests__/smoke.test.ts
index 7887abd7..39f75fc8 100644
--- a/js/packages/core/src/__tests__/smoke.test.ts
+++ b/js/packages/core/src/__tests__/smoke.test.ts
@@ -196,6 +196,12 @@ describe("Enums", () => {
     expect(IDKitErrorCodes.CredentialUnavailable).toBe(
       "credential_unavailable",
     );
+    expect(IDKitErrorCodes.WorldId4NotAvailable).toBe(
+      "world_id_4_not_available",
+    );
+    expect(IDKitErrorCodes.WorldId3NotAvailable).toBe(
+      "world_id_3_not_available",
+    );
     expect(IDKitErrorCodes.InvalidRpSignature).toBe("invalid_rp_signature");
     expect(IDKitErrorCodes.NullifierReplayed).toBe("nullifier_replayed");
     expect(IDKitErrorCodes.DuplicateNonce).toBe("duplicate_nonce");
diff --git a/js/packages/core/src/types/result.ts b/js/packages/core/src/types/result.ts
index deb54858..a38c8336 100644
--- a/js/packages/core/src/types/result.ts
+++ b/js/packages/core/src/types/result.ts
@@ -32,6 +32,8 @@ export enum IDKitErrorCodes {
   UserRejected = "user_rejected",
   VerificationRejected = "verification_rejected",
   CredentialUnavailable = "credential_unavailable",
+  WorldId4NotAvailable = "world_id_4_not_available",
+  WorldId3NotAvailable = "world_id_3_not_available",
   MalformedRequest = "malformed_request",
   InvalidNetwork = "invalid_network",
   InclusionProofPending = "inclusion_proof_pending",
diff --git a/kotlin/bindings/src/main/kotlin/com/worldcoin/idkit/IdKit.kt b/kotlin/bindings/src/main/kotlin/com/worldcoin/idkit/IdKit.kt
index fe25fcee..a4927d2e 100644
--- a/kotlin/bindings/src/main/kotlin/com/worldcoin/idkit/IdKit.kt
+++ b/kotlin/bindings/src/main/kotlin/com/worldcoin/idkit/IdKit.kt
@@ -44,6 +44,8 @@ enum class IDKitErrorCode(val rawValue: String) {
     USER_REJECTED("user_rejected"),
     VERIFICATION_REJECTED("verification_rejected"),
     CREDENTIAL_UNAVAILABLE("credential_unavailable"),
+    WORLD_ID_4_NOT_AVAILABLE("world_id_4_not_available"),
+    WORLD_ID_3_NOT_AVAILABLE("world_id_3_not_available"),
     MALFORMED_REQUEST("malformed_request"),
     INVALID_NETWORK("invalid_network"),
     INCLUSION_PROOF_PENDING("inclusion_proof_pending"),
@@ -70,6 +72,8 @@ enum class IDKitErrorCode(val rawValue: String) {
             AppError.USER_REJECTED -> USER_REJECTED
             AppError.VERIFICATION_REJECTED -> VERIFICATION_REJECTED
             AppError.CREDENTIAL_UNAVAILABLE -> CREDENTIAL_UNAVAILABLE
+            AppError.WORLD_ID4_NOT_AVAILABLE -> WORLD_ID_4_NOT_AVAILABLE
+            AppError.WORLD_ID3_NOT_AVAILABLE -> WORLD_ID_3_NOT_AVAILABLE
             AppError.MALFORMED_REQUEST -> MALFORMED_REQUEST
             AppError.INVALID_NETWORK -> INVALID_NETWORK
             AppError.INCLUSION_PROOF_PENDING -> INCLUSION_PROOF_PENDING
diff --git a/rust/core/src/bridge.rs b/rust/core/src/bridge.rs
index bc090fd1..5d4363a7 100644
--- a/rust/core/src/bridge.rs
+++ b/rust/core/src/bridge.rs
@@ -1765,6 +1765,8 @@ mod tests {
         ));
 
         let cases = [
+            ("world_id_4_not_available", AppError::WorldId4NotAvailable),
+            ("world_id_3_not_available", AppError::WorldId3NotAvailable),
             ("duplicate_nonce", AppError::DuplicateNonce),
             ("unknown_rp", AppError::UnknownRp),
             ("inactive_rp", AppError::InactiveRp),
diff --git a/rust/core/src/error.rs b/rust/core/src/error.rs
index a4285388..b11ad3be 100644
--- a/rust/core/src/error.rs
+++ b/rust/core/src/error.rs
@@ -76,6 +76,16 @@ pub enum AppError {
     #[error("Requested credential is not available")]
     CredentialUnavailable,
 
+    /// World ID 4.0 credential is not available
+    #[error("World ID 4.0 is not available")]
+    #[serde(rename = "world_id_4_not_available")]
+    WorldId4NotAvailable,
+
+    /// World ID 3.0 credential is not available
+    #[error("World ID 3.0 is not available")]
+    #[serde(rename = "world_id_3_not_available")]
+    WorldId3NotAvailable,
+
     /// Malformed request
     #[error("Request is malformed")]
     MalformedRequest,
@@ -158,6 +168,8 @@ impl AppError {
             "user_rejected" => Self::UserRejected,
             "verification_rejected" => Self::VerificationRejected,
             "credential_unavailable" => Self::CredentialUnavailable,
+            "world_id_4_not_available" => Self::WorldId4NotAvailable,
+            "world_id_3_not_available" => Self::WorldId3NotAvailable,
             "malformed_request" => Self::MalformedRequest,
             "invalid_network" => Self::InvalidNetwork,
             "inclusion_proof_pending" => Self::InclusionProofPending,
diff --git a/rust/core/src/wasm_bindings.rs b/rust/core/src/wasm_bindings.rs
index e11fa0d6..ac52f001 100644
--- a/rust/core/src/wasm_bindings.rs
+++ b/rust/core/src/wasm_bindings.rs
@@ -1288,6 +1288,8 @@ export type IDKitErrorCode =
     | "user_rejected"
     | "verification_rejected"
     | "credential_unavailable"
+    | "world_id_4_not_available"
+    | "world_id_3_not_available"
     | "malformed_request"
     | "invalid_network"
     | "inclusion_proof_pending"
diff --git a/swift/Sources/IDKit/IDKit.swift b/swift/Sources/IDKit/IDKit.swift
index 0f3d29cd..79d09a19 100644
--- a/swift/Sources/IDKit/IDKit.swift
+++ b/swift/Sources/IDKit/IDKit.swift
@@ -89,6 +89,8 @@ public enum IDKitErrorCode: String, Equatable {
     case userRejected = "user_rejected"
     case verificationRejected = "verification_rejected"
     case credentialUnavailable = "credential_unavailable"
+    case worldId4NotAvailable = "world_id_4_not_available"
+    case worldId3NotAvailable = "world_id_3_not_available"
     case malformedRequest = "malformed_request"
     case invalidNetwork = "invalid_network"
     case inclusionProofPending = "inclusion_proof_pending"
@@ -118,6 +120,10 @@ public enum IDKitErrorCode: String, Equatable {
             .verificationRejected
         case .credentialUnavailable:
             .credentialUnavailable
+        case .worldId4NotAvailable:
+            .worldId4NotAvailable
+        case .worldId3NotAvailable:
+            .worldId3NotAvailable
         case .malformedRequest:
             .malformedRequest
         case .invalidNetwork: