diff --git a/package.json b/package.json
index 6d52fe8..5aebab1 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "type": "module",
   "name": "dlc-btc-lib",
-  "version": "2.6.4",
+  "version": "2.6.5",
   "description": "This library provides a comprehensive set of interfaces and functions for minting dlcBTC tokens on supported blockchains.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/src/models/attestor.models.ts b/src/models/attestor.models.ts
index 411adbc..7424bac 100644
--- a/src/models/attestor.models.ts
+++ b/src/models/attestor.models.ts
@@ -1,23 +1,30 @@
-export type AttestorChainID =
-  | 'evm-mainnet'
-  | 'evm-sepolia'
-  | 'evm-arbitrum'
-  | 'evm-arbsepolia'
-  | 'evm-base'
-  | 'evm-basesepolia'
-  | 'evm-optimism'
-  | 'evm-opsepolia'
-  | 'evm-polygon'
-  | 'evm-polygonsepolia'
-  | 'evm-avax'
-  | 'evm-bsc'
-  | 'evm-holesky'
-  | 'evm-localhost'
-  | 'evm-hardhat-arb'
-  | 'evm-hardhat-eth'
-  | 'ripple-xrpl-mainnet'
-  | 'ripple-xrpl-testnet'
-  | 'ripple-xrpl-devnet';
+export enum EVMAttestorChainID {
+  'evm-mainnet' = 'evm-mainnet',
+  'evm-sepolia' = 'evm-sepolia',
+  'evm-arbitrum' = 'evm-arbitrum',
+  'evm-arbsepolia' = 'evm-arbsepolia',
+  'evm-base' = 'evm-base',
+  'evm-basesepolia' = 'evm-basesepolia',
+  'evm-optimism' = 'evm-optimism',
+  'evm-opsepolia' = 'evm-opsepolia',
+  'evm-polygon' = 'evm-polygon',
+  'evm-polygonsepolia' = 'evm-polygonsepolia',
+  'evm-avax' = 'evm-avax',
+  'evm-bsc' = 'evm-bsc',
+  'evm-holesky' = 'evm-holesky',
+  'evm-localhost' = 'evm-localhost',
+  'evm-hardhat-arb' = 'evm-hardhat-arb',
+  'evm-hardhat-eth' = 'evm-hardhat-eth',
+  'evm-bsctestnet' = 'evm-bsctestnet',
+}
+
+export enum XRPLAttestorChainID {
+  'ripple-xrpl-mainnet' = 'ripple-xrpl-mainnet',
+  'ripple-xrpl-testnet' = 'ripple-xrpl-testnet',
+  'ripple-xrpl-devnet' = 'ripple-xrpl-devnet',
+}
+
+export type AttestorChainID = EVMAttestorChainID | XRPLAttestorChainID;
 
 export interface FundingTXAttestorInfo {
   vaultUUID: string;
diff --git a/src/utilities/index.ts b/src/utilities/index.ts
index babfb8f..0678734 100644
--- a/src/utilities/index.ts
+++ b/src/utilities/index.ts
@@ -1,5 +1,11 @@
 import { Decimal } from 'decimal.js';
 
+import {
+  AttestorChainID,
+  EVMAttestorChainID,
+  XRPLAttestorChainID,
+} from '../models/attestor.models.js';
+
 export function shiftValue(value: number): number {
   const decimalPoweredShift = new Decimal(10 ** 8);
   const decimalValue = new Decimal(Number(value));
@@ -63,3 +69,18 @@ export function reverseBytes(bytes: Buffer | Uint8Array) {
   if (Buffer.isBuffer(bytes)) return Buffer.from(bytes).reverse();
   return new Uint8Array(bytes.slice().reverse());
 }
+
+export function isSupportedChainID(chainID: string): chainID is AttestorChainID {
+  return (
+    Object.values(EVMAttestorChainID).includes(chainID as EVMAttestorChainID) ||
+    Object.values(XRPLAttestorChainID).includes(chainID as XRPLAttestorChainID)
+  );
+}
+
+export function isEVMChainID(chainID: string): chainID is EVMAttestorChainID {
+  return Object.values(EVMAttestorChainID).includes(chainID as EVMAttestorChainID);
+}
+
+export function isXRPLChainID(chainID: string): chainID is XRPLAttestorChainID {
+  return Object.values(XRPLAttestorChainID).includes(chainID as XRPLAttestorChainID);
+}
diff --git a/tests/unit/attestor-request-function.test.ts b/tests/unit/attestor-request-function.test.ts
index 5f93c9d..eda251d 100644
--- a/tests/unit/attestor-request-function.test.ts
+++ b/tests/unit/attestor-request-function.test.ts
@@ -4,6 +4,7 @@ import {
 } from '../../src/functions/attestor/attestor-request.functions';
 import * as requestFunctions from '../../src/functions/request/request.functions';
 import {
+  EVMAttestorChainID,
   FundingTXAttestorInfo,
   WithdrawDepositTXAttestorInfo,
 } from '../../src/models/attestor.models';
@@ -20,7 +21,7 @@ describe('Attestor Request Sending', () => {
       fundingPSBT: 'funding-psbt',
       userEthereumAddress: 'user-ethereum-address',
       userBitcoinTaprootPublicKey: 'user-bitcoin-taproot-public-key',
-      attestorChainID: 'evm-arbitrum',
+      attestorChainID: EVMAttestorChainID['evm-arbitrum'],
     };
     it('should succeed without errors when all requests are successful', async () => {
       jest