diff --git a/src/lib/seam/connect/api-error-types.ts b/src/lib/seam/connect/api-error-types.ts
index a2bddbe..e9ca5a9 100644
--- a/src/lib/seam/connect/api-error-types.ts
+++ b/src/lib/seam/connect/api-error-types.ts
@@ -8,4 +8,5 @@ export interface ApiError {
   type: string
   message: string
   data?: unknown
+  validation_errors?: Record<string, { _errors: string[] }>
 }
diff --git a/src/lib/seam/connect/seam-http-error.ts b/src/lib/seam/connect/seam-http-error.ts
index 91129e9..7e8dfe0 100644
--- a/src/lib/seam/connect/seam-http-error.ts
+++ b/src/lib/seam/connect/seam-http-error.ts
@@ -46,11 +46,17 @@ export const isSeamHttpUnauthorizedError = (
 
 export class SeamHttpInvalidInputError extends SeamHttpApiError {
   override code: 'invalid_input'
+  readonly #validationErrors: NonNullable<ApiError['validation_errors']>
 
   constructor(error: ApiError, statusCode: number, requestId: string) {
     super(error, statusCode, requestId)
     this.name = this.constructor.name
     this.code = 'invalid_input'
+    this.#validationErrors = error.validation_errors ?? {}
+  }
+
+  getValidationErrorMessages(paramName: string): string[] {
+    return this.#validationErrors[paramName]?._errors ?? []
   }
 }
 
diff --git a/test/seam/connect/http-error.test.ts b/test/seam/connect/http-error.test.ts
index 05920bc..2380f3f 100644
--- a/test/seam/connect/http-error.test.ts
+++ b/test/seam/connect/http-error.test.ts
@@ -92,4 +92,7 @@ test('SeamHttp: throws SeamHttpInvalidInputError on invalid input', async (t) =>
   t.is(err?.statusCode, 400)
   t.is(err?.code, 'invalid_input')
   t.true(err?.requestId?.startsWith('request'))
+  t.deepEqual(err?.getValidationErrorMessages('device_ids'), [
+    'Expected array, received number',
+  ])
 })