diff --git a/src/__tests__/integration/decentralized-sequencer/interactions.ts b/src/__tests__/integration/decentralized-sequencer/interactions.ts
index 72bca4cc..996c46c1 100644
--- a/src/__tests__/integration/decentralized-sequencer/interactions.ts
+++ b/src/__tests__/integration/decentralized-sequencer/interactions.ts
@@ -17,9 +17,10 @@ interface ExampleContractState {
     counter: number;
 }
 
-// FIXME: change to the address of the sequencer on dev
-const DECENTRALIZED_SEQUENCER_URL = 'http://sequencer-0.warp.cc:1317';
-const GW_URL = 'http://34.141.17.15:5666/';
+const DECENTRALIZED_SEQUENCER_URLS = ['http://sequencer-0.testnet.warp.cc:1317', 
+                                      'http://sequencer-1.testnet.warp.cc:1317',
+                                      'http://sequencer-2.testnet.warp.cc:1317'];
+const GW_URL = 'http://35.242.203.146:5666/';
 
 describe('Testing sending of interactions to a decentralized sequencer', () => {
     let contractSrc: string;
@@ -42,13 +43,13 @@ describe('Testing sending of interactions to a decentralized sequencer', () => {
             if (req.url === '/gateway/sequencer/address') {
                 res.writeHead(200, { 'Content-Type': 'application/json' });
                 res.end(JSON.stringify({
-                    url: centralizedSequencerType ? mockGwUrl : DECENTRALIZED_SEQUENCER_URL,
+                    urls: centralizedSequencerType ? [mockGwUrl] : DECENTRALIZED_SEQUENCER_URLS,
                     type: centralizedSequencerType ? 'centralized' : 'decentralized'
                 }));
                 return;
             } else if (req.url === '/gateway/v2/sequencer/register') {
                 centralizedSequencerType = false;
-                res.writeHead(301, { Location: DECENTRALIZED_SEQUENCER_URL });
+                res.writeHead(301, { Location: DECENTRALIZED_SEQUENCER_URLS[0] });
                 res.end();
                 return;
             } else if (req.url?.startsWith('/gateway/interactions/')) {
diff --git a/src/__tests__/integration/decentralized-sequencer/send-data-item.ts b/src/__tests__/integration/decentralized-sequencer/send-data-item.ts
index 810ee60a..d25deb5b 100644
--- a/src/__tests__/integration/decentralized-sequencer/send-data-item.ts
+++ b/src/__tests__/integration/decentralized-sequencer/send-data-item.ts
@@ -9,9 +9,8 @@ import { WarpFetchWrapper } from '../../../core/WarpFetchWrapper';
 import { Signature } from '../../../contract/Signature';
 import { SequencerClient } from '../../../contract/sequencer/SequencerClient';
 
-// FIXME: change to the address of the sequencer on dev
-const SEQUENCER_URL = 'http://sequencer-0.warp.cc:1317';
-const GW_URL = 'http://34.141.17.15:5666/';
+const SEQUENCER_URL = 'http://sequencer-0.testnet.warp.cc:1317';
+const GW_URL = 'https://gw-testnet.warp.cc';
 
 describe('Testing a decentralized sequencer client', () => {
 
diff --git a/src/core/Warp.ts b/src/core/Warp.ts
index 441568bd..6db91439 100644
--- a/src/core/Warp.ts
+++ b/src/core/Warp.ts
@@ -35,7 +35,7 @@ import { SourceData } from '../contract/deploy/Source';
 import { Signer, DataItem } from 'warp-arbundles';
 import { BasicSortKeyCache } from '../cache/BasicSortKeyCache';
 
-export type WarpEnvironment = 'local' | 'testnet' | 'mainnet' | 'custom';
+export type WarpEnvironment = 'local' | 'testnet' | 'seqtestnet' | 'mainnet' | 'custom';
 export type KVStorageFactory = (contractTxId: string) => SortKeyCache<unknown>;
 
 /**
diff --git a/src/core/WarpFactory.ts b/src/core/WarpFactory.ts
index 3dd63434..1008920f 100644
--- a/src/core/WarpFactory.ts
+++ b/src/core/WarpFactory.ts
@@ -25,10 +25,15 @@ export const defaultWarpGwOptions: GatewayOptions = {
 };
 
 /**
- * @Deprecated - will be removed soon, left for backwards compatibility with deploy plugin
+ * Default Warp Gateway URL
  */
 export const WARP_GW_URL = 'https://gw.warp.cc';
 
+/**
+ * The URL of the Warp Gateway that works with a test network of decentralized sequencers
+ */
+export const WARP_GW_TESTNET_URL = 'https://gw-testnet.warp.cc';
+
 export const DEFAULT_LEVEL_DB_LOCATION = './cache/warp';
 
 export const defaultCacheOptions: CacheOptions = {
@@ -82,6 +87,26 @@ export class WarpFactory {
     }
   }
 
+  /**
+   * creates a Warp instance suitable for testing the decentralized Warp Sequencer
+   * (https://github.com/warp-contracts/sequencer)
+   */
+  static forSeqTestnet(
+    cacheOptions = defaultCacheOptions,
+    useArweaveGw = false,
+    arweave = Arweave.init({
+      host: 'arweave.net',
+      port: 443,
+      protocol: 'https'
+    })
+  ): Warp {
+    if (useArweaveGw) {
+      return this.customArweaveGw(arweave, cacheOptions, 'seqtestnet');
+    } else {
+      return this.customWarpGw(arweave, defaultWarpGwOptions, cacheOptions, 'seqtestnet').useGwUrl(WARP_GW_TESTNET_URL);
+    }
+  }
+
   /**
    * creates a Warp instance suitable for use with mainnet.
    * By default, the Warp gateway (https://github.com/warp-contracts/gateway#warp-gateway)