diff --git a/src/models/responses/bank/config.ts b/src/models/responses/bank/config.ts
index 9ff4edb1..390be0ab 100644
--- a/src/models/responses/bank/config.ts
+++ b/src/models/responses/bank/config.ts
@@ -22,5 +22,5 @@ export interface BankConfigResponse {
   protocol: Protocol;
   version: Version;
   default_transaction_fee: number;
-  node_type: NodeType;
+  node_type: NodeType.bank;
 }
diff --git a/src/models/responses/confirmation-validator/config.ts b/src/models/responses/confirmation-validator/config.ts
index df00cdd8..9516dc74 100644
--- a/src/models/responses/confirmation-validator/config.ts
+++ b/src/models/responses/confirmation-validator/config.ts
@@ -26,5 +26,5 @@ export interface ConfirmationValidatorConfigResponse {
   root_account_file_hash: Hex;
   seed_block_identifier: Hex;
   daily_confirmation_rate: number;
-  node_type: NodeType;
+  node_type: NodeType.confirmationValidator;
 }
diff --git a/src/models/responses/constants.ts b/src/models/responses/constants.ts
index b6892535..675bbd7c 100644
--- a/src/models/responses/constants.ts
+++ b/src/models/responses/constants.ts
@@ -1,4 +1,8 @@
-export type NodeType = "BANK" | "CONFIRMATION_VALIDATOR" | "PRIMARY_VALIDATOR";
+export enum NodeType {
+  bank = "BANK",
+  confirmationValidator = "CONFIRMATION_VALIDATOR",
+  primaryValidator = "PRIMARY_VALIDATOR",
+}
 export type Version = "v1.0";
 export type Protocol = "http" | "https";
 export type Port = number;
diff --git a/src/models/responses/generic/clean.ts b/src/models/responses/generic/clean.ts
index 937d8999..aef5a777 100644
--- a/src/models/responses/generic/clean.ts
+++ b/src/models/responses/generic/clean.ts
@@ -1,5 +1,11 @@
 import type { Origin, Port, Protocol } from "../constants";
 
+export enum CleanStatus {
+  cleaning = "cleaning",
+  notCleaning = "not_cleaning",
+  stopRequested = "stop_requested",
+}
+
 /** The response model for a crawl request. */
 export interface CleanResponse {
   clean_last_completed: string;
diff --git a/src/models/responses/generic/crawl.ts b/src/models/responses/generic/crawl.ts
index e0f17094..f367b94f 100644
--- a/src/models/responses/generic/crawl.ts
+++ b/src/models/responses/generic/crawl.ts
@@ -1,9 +1,15 @@
 import type { Origin, Port, Protocol } from "../constants";
 
+export enum CrawlStatus {
+  crawling = "crawling",
+  notCrawling = "not_crawling",
+  stopRequested = "stop_requested",
+}
+
 /** The response model for a crawl request. */
 export interface CrawlResponse {
   crawl_last_completed: string;
-  crawl_status: string;
+  crawl_status: CrawlStatus;
   ip_address: Origin;
   port: Port;
   protocol: Protocol;
diff --git a/src/models/responses/primary-validator/config.ts b/src/models/responses/primary-validator/config.ts
index 6226aea1..9f492459 100644
--- a/src/models/responses/primary-validator/config.ts
+++ b/src/models/responses/primary-validator/config.ts
@@ -1,4 +1,4 @@
-import type { Hex, Origin, Port, Protocol, Url, Trust, Version, NodeType } from "../constants";
+import type { Hex, Origin, Port, Protocol, Url, Version, NodeType } from "../constants";
 
 export interface PrimaryValidatorConfigResponse {
   primary_validator: null;
@@ -13,5 +13,5 @@ export interface PrimaryValidatorConfigResponse {
   root_account_file_hash: Hex;
   seed_block_identifier: Hex;
   daily_confirmation_rate: number;
-  node_type: NodeType;
+  node_type: NodeType.primaryValidator;
 }