diff --git a/src/client/types.ts b/src/client/types.ts
index 03b28fd..0be6a88 100644
--- a/src/client/types.ts
+++ b/src/client/types.ts
@@ -18,6 +18,7 @@ export interface IPutioAPIClientErrorData {
   error_type: string
   error_message: string
   status_code: number
+  extra: Record<string, unknown>
 }
 
 export interface IPutioAPIClientError
diff --git a/src/interceptors/response/clientIPChangeEmitter.spec.ts b/src/interceptors/response/clientIPChangeEmitter.spec.ts
index 9ab5eaa..09652b0 100644
--- a/src/interceptors/response/clientIPChangeEmitter.spec.ts
+++ b/src/interceptors/response/clientIPChangeEmitter.spec.ts
@@ -110,6 +110,7 @@ describe('interceptors/response/clientIPChangeEmitter', () => {
           error_type: 'API_ERROR',
           error_message: 'Putio API Error',
           status_code: 400,
+          extra: { foo: 'bar' },
         },
         headers: { 'putio-client-ip': '0.0.0.0' },
         status: 400,
diff --git a/src/interceptors/response/errorEmitter.spec.ts b/src/interceptors/response/errorEmitter.spec.ts
index ff3c246..e0d8f1e 100644
--- a/src/interceptors/response/errorEmitter.spec.ts
+++ b/src/interceptors/response/errorEmitter.spec.ts
@@ -30,6 +30,7 @@ describe('interceptors/response/errorEmitter', () => {
             status_code: 400,
             error_type: 'API_ERROR',
             error_message: 'Putio API Error',
+            extra: { foo: 'bar' },
           },
           headers: {},
           status: 400,
diff --git a/src/interceptors/response/responseFormatter.spec.ts b/src/interceptors/response/responseFormatter.spec.ts
index acf3ba2..8521030 100644
--- a/src/interceptors/response/responseFormatter.spec.ts
+++ b/src/interceptors/response/responseFormatter.spec.ts
@@ -44,6 +44,7 @@ describe('interceptors/response/responseFormatter', () => {
             error_type: 'API_ERROR',
             error_message: 'Putio API Error',
             status_code: 400,
+            extra: { foo: 'bar' },
           },
           headers: {
             'x-trace-id': 'MOCK_TRACE_ID',
@@ -58,6 +59,9 @@ describe('interceptors/response/responseFormatter', () => {
           Object {
             "error_message": "Putio API Error",
             "error_type": "API_ERROR",
+            "extra": Object {
+              "foo": "bar",
+            },
             "status_code": 400,
             "x-trace-id": "MOCK_TRACE_ID",
           }
@@ -84,6 +88,7 @@ describe('interceptors/response/responseFormatter', () => {
           Object {
             "error_message": "AXIOS_ERROR_MESSAGE",
             "error_type": "ERROR",
+            "extra": Object {},
             "status_code": 502,
             "x-trace-id": undefined,
           }
@@ -97,6 +102,7 @@ describe('interceptors/response/responseFormatter', () => {
           Object {
             "error_message": "AXIOS_ERROR_MESSAGE",
             "error_type": "ERROR",
+            "extra": Object {},
             "status_code": 0,
             "x-trace-id": undefined,
           }
@@ -120,6 +126,7 @@ describe('interceptors/response/responseFormatter', () => {
           Object {
             "error_message": "AXIOS_ERROR_MESSAGE",
             "error_type": "ERROR",
+            "extra": Object {},
             "foo": "bar",
             "status_code": 400,
             "x-trace-id": undefined,
@@ -144,6 +151,9 @@ describe('interceptors/response/responseFormatter', () => {
           Object {
             "error_message": "MOCK_MESSAGE",
             "error_type": "MOCK_ERROR",
+            "extra": Object {
+              "foo": "bar",
+            },
             "status_code": 0,
           }
         `),
diff --git a/src/interceptors/response/responseFormatter.ts b/src/interceptors/response/responseFormatter.ts
index 9879525..2d021fd 100644
--- a/src/interceptors/response/responseFormatter.ts
+++ b/src/interceptors/response/responseFormatter.ts
@@ -23,6 +23,7 @@ export const createResponseFormatter: PutioAPIClientResponseInterceptorFactory =
         error_message: error.message,
         error_type: 'ERROR',
         status_code: 0,
+        extra: {},
       }
 
       if (error.response && error.response.data) {
diff --git a/src/test-utils/mocks.ts b/src/test-utils/mocks.ts
index 4f1d933..c21896d 100644
--- a/src/test-utils/mocks.ts
+++ b/src/test-utils/mocks.ts
@@ -38,6 +38,7 @@ export const mockPutioAPIClientError: IPutioAPIClientError = {
     error_type: 'MOCK_ERROR',
     error_message: 'MOCK_MESSAGE',
     status_code: 0,
+    extra: { foo: 'bar' },
   },
   toJSON() {
     return this.data