diff --git a/docs/node/CATEGORIES/11-masternode.md b/docs/node/CATEGORIES/11-masternode.md
index 340f62e365..4bc8e53582 100644
--- a/docs/node/CATEGORIES/11-masternode.md
+++ b/docs/node/CATEGORIES/11-masternode.md
@@ -206,6 +206,16 @@ interface masternode {
 }
 ```
 
+## isAppliedCustomTransaction
+
+Checks that custom transaction was affected on chain
+
+```ts title="client.masternode.isAppliedCustomTransaction()"
+interface masternode {
+  isAppliedCustomTransaction (transactionId: string, blockHeight: number): Promise<boolean>
+}
+```
+
 ## getAnchorTeams
 
 Returns the auth and confirm anchor masternode teams at current or specified height
diff --git a/packages/jellyfish-api-core/__tests__/category/masternode/isAppliedCustomTransaction.test.ts b/packages/jellyfish-api-core/__tests__/category/masternode/isAppliedCustomTransaction.test.ts
new file mode 100644
index 0000000000..f346954767
--- /dev/null
+++ b/packages/jellyfish-api-core/__tests__/category/masternode/isAppliedCustomTransaction.test.ts
@@ -0,0 +1,101 @@
+import { Testing } from '@defichain/jellyfish-testing'
+import { MasterNodeRegTestContainer } from '@defichain/testcontainers'
+import { RpcApiError } from '@defichain/jellyfish-api-core'
+
+describe('Masternode', () => {
+  const testing = Testing.create(new MasterNodeRegTestContainer())
+
+  beforeAll(async () => {
+    await testing.container.start()
+    await testing.container.waitForWalletCoinbaseMaturity()
+  })
+
+  afterAll(async () => {
+    await testing.container.stop()
+  })
+
+  it('should be passed while using valid id and height', async () => {
+    const goldAddress = await testing.container.getNewAddress('', 'legacy')
+    const goldMetadata = {
+      symbol: 'GOLD',
+      name: 'shiny gold',
+      isDAT: false,
+      mintable: true,
+      tradeable: true,
+      collateralAddress: goldAddress
+    }
+    const goldTokenId = await testing.rpc.token.createToken(goldMetadata)
+    await testing.generate(1)
+    const goldHeight = await testing.rpc.blockchain.getBlockCount()
+
+    const silverAddress = await testing.container.getNewAddress('', 'legacy')
+    const silverMetadata = {
+      symbol: 'SILVER',
+      name: 'just silver',
+      isDAT: false,
+      mintable: true,
+      tradeable: true,
+      collateralAddress: silverAddress
+    }
+    const silverTokenId = await testing.rpc.token.createToken(silverMetadata)
+    await testing.generate(1)
+    const silverHeight = await testing.rpc.blockchain.getBlockCount()
+
+    const copperAddress = await testing.container.getNewAddress('', 'legacy')
+    const copperMetadata = {
+      symbol: 'COPPER',
+      name: 'just copper',
+      isDAT: false,
+      mintable: true,
+      tradeable: true,
+      collateralAddress: copperAddress
+    }
+    const copperTokenId = await testing.rpc.token.createToken(copperMetadata)
+    await testing.generate(1)
+    const copperHeight = await testing.rpc.blockchain.getBlockCount()
+
+    const goldResult = await testing.rpc.masternode.isAppliedCustomTransaction(goldTokenId, goldHeight)
+    expect(goldResult).toStrictEqual(true)
+
+    const silverResult = await testing.rpc.masternode.isAppliedCustomTransaction(silverTokenId, silverHeight)
+    expect(silverResult).toStrictEqual(true)
+
+    const copperResult = await testing.rpc.masternode.isAppliedCustomTransaction(copperTokenId, copperHeight)
+    expect(copperResult).toStrictEqual(true)
+  })
+
+  it('should be failed while using invalid height', async () => {
+    const brassAddress = await testing.container.getNewAddress('', 'legacy')
+    const brassMetadata = {
+      symbol: 'BRASS',
+      name: 'shiny brass',
+      isDAT: false,
+      mintable: true,
+      tradeable: true,
+      collateralAddress: brassAddress
+    }
+    const brassTokenId = await testing.rpc.token.createToken(brassMetadata)
+    await testing.generate(1)
+    const brassHeight = await testing.rpc.blockchain.getBlockCount()
+
+    const brassResult = await testing.rpc.masternode.isAppliedCustomTransaction(brassTokenId, brassHeight + 1)
+    expect(brassResult).toStrictEqual(false)
+  })
+
+  it('should be failed while using invalid id', async () => {
+    const blockHeight = await testing.rpc.blockchain.getBlockCount()
+
+    const result = await testing.rpc.masternode.isAppliedCustomTransaction('b2bb09ffe9f9b292f13d23bafa1225ef26d0b9906da7af194c5738b63839b235', blockHeight)
+    expect(result).toStrictEqual(false)
+
+    // Hex hash id with 63 chars
+    let promise = testing.rpc.masternode.isAppliedCustomTransaction('2bb09ffe9f9b292f13d23bafa1225ef26d0b9906da7af194c5738b63839b235', blockHeight)
+    await expect(promise).rejects.toThrow(RpcApiError)
+    await expect(promise).rejects.toThrow('txid must be of length 64')
+
+    // Invalid hash id with a non hex char
+    promise = testing.rpc.masternode.isAppliedCustomTransaction('b2bb09ffe9f9b292f13d23bafa1225ef26d0b9906da7af194c5738b63839b23z', blockHeight)
+    await expect(promise).rejects.toThrow(RpcApiError)
+    await expect(promise).rejects.toThrow('txid must be hexadecimal string')
+  })
+})
diff --git a/packages/jellyfish-api-core/src/category/masternode.ts b/packages/jellyfish-api-core/src/category/masternode.ts
index c197471f3c..e685cc8c23 100644
--- a/packages/jellyfish-api-core/src/category/masternode.ts
+++ b/packages/jellyfish-api-core/src/category/masternode.ts
@@ -198,6 +198,17 @@ export class Masternode {
     return await this.client.call('listgovs', [], 'bignumber')
   }
 
+  /**
+   * Checks that custom transaction was affected on chain
+   *
+   * @param {string} transactionId transaction hash
+   * @param {number} blockHeight height of block which contain transaction
+   * @return {Promise<boolean>} indicate that custom transaction was affected on chain
+   */
+  async isAppliedCustomTransaction (transactionId: string, blockHeight: number): Promise<boolean> {
+    return await this.client.call('isappliedcustomtx', [transactionId, blockHeight], 'number')
+  }
+
   /**
    * Returns the auth and confirm anchor masternode teams at current or specified height
    *