diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb2cb19..5ba97bc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.13.0] - 2021-09-10
+
+### Added
+
+- Adds ability to create Bitcoin and Ethereum estimates using the daily balance held.
+
 ## [1.12.0] - 2021-09-08
 
 ### Added
diff --git a/package-lock.json b/package-lock.json
index a2d28bd..5bfbe24 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@patch-technology/patch",
-  "version": "1.12.0",
+  "version": "1.13.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@patch-technology/patch",
-      "version": "1.12.0",
+      "version": "1.13.0",
       "license": "MIT",
       "dependencies": {
         "query-string": "^7.0.1",
diff --git a/package.json b/package.json
index f689a4d..8256529 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@patch-technology/patch",
-  "version": "1.12.0",
+  "version": "1.13.0",
   "description": "Node.js wrapper for the Patch API",
   "license": "MIT",
   "repository": {
diff --git a/src/ApiClient.js b/src/ApiClient.js
index 5fce057..dc6ff85 100644
--- a/src/ApiClient.js
+++ b/src/ApiClient.js
@@ -16,7 +16,7 @@ class ApiClient {
     };
 
     this.defaultHeaders = {
-      'User-Agent': 'patch-node/1.12.0'
+      'User-Agent': 'patch-node/1.13.0'
     };
 
     /**
diff --git a/src/model/CreateBitcoinEstimateRequest.js b/src/model/CreateBitcoinEstimateRequest.js
index ff9ebbc..2d441ff 100644
--- a/src/model/CreateBitcoinEstimateRequest.js
+++ b/src/model/CreateBitcoinEstimateRequest.js
@@ -29,6 +29,13 @@ class CreateBitcoinEstimateRequest {
         );
       }
 
+      if (data.hasOwnProperty('average_daily_balance_btc_sats')) {
+        obj['average_daily_balance_btc_sats'] = ApiClient.convertToType(
+          data['average_daily_balance_btc_sats'],
+          'Number'
+        );
+      }
+
       if (data.hasOwnProperty('project_id')) {
         obj['project_id'] = ApiClient.convertToType(
           data['project_id'],
@@ -52,8 +59,11 @@ CreateBitcoinEstimateRequest.prototype['timestamp'] = undefined;
 CreateBitcoinEstimateRequest.prototype['transaction_value_btc_sats'] =
   undefined;
 
+CreateBitcoinEstimateRequest.prototype['average_daily_balance_btc_sats'] =
+  undefined;
+
 CreateBitcoinEstimateRequest.prototype['project_id'] = undefined;
 
-CreateBitcoinEstimateRequest.prototype['create_order'] = undefined;
+CreateBitcoinEstimateRequest.prototype['create_order'] = false;
 
 export default CreateBitcoinEstimateRequest;
diff --git a/src/model/CreateEthereumEstimateRequest.js b/src/model/CreateEthereumEstimateRequest.js
index 9bdac83..655d0ff 100644
--- a/src/model/CreateEthereumEstimateRequest.js
+++ b/src/model/CreateEthereumEstimateRequest.js
@@ -33,6 +33,13 @@ class CreateEthereumEstimateRequest {
         );
       }
 
+      if (data.hasOwnProperty('average_daily_balance_eth_gwei')) {
+        obj['average_daily_balance_eth_gwei'] = ApiClient.convertToType(
+          data['average_daily_balance_eth_gwei'],
+          'Number'
+        );
+      }
+
       if (data.hasOwnProperty('project_id')) {
         obj['project_id'] = ApiClient.convertToType(
           data['project_id'],
@@ -58,8 +65,11 @@ CreateEthereumEstimateRequest.prototype['gas_used'] = undefined;
 CreateEthereumEstimateRequest.prototype['transaction_value_eth_gwei'] =
   undefined;
 
+CreateEthereumEstimateRequest.prototype['average_daily_balance_eth_gwei'] =
+  undefined;
+
 CreateEthereumEstimateRequest.prototype['project_id'] = undefined;
 
-CreateEthereumEstimateRequest.prototype['create_order'] = undefined;
+CreateEthereumEstimateRequest.prototype['create_order'] = false;
 
 export default CreateEthereumEstimateRequest;
diff --git a/src/model/CreateFlightEstimateRequest.js b/src/model/CreateFlightEstimateRequest.js
index a2f3701..274777b 100644
--- a/src/model/CreateFlightEstimateRequest.js
+++ b/src/model/CreateFlightEstimateRequest.js
@@ -92,6 +92,6 @@ CreateFlightEstimateRequest.prototype['passenger_count'] = undefined;
 
 CreateFlightEstimateRequest.prototype['project_id'] = undefined;
 
-CreateFlightEstimateRequest.prototype['create_order'] = undefined;
+CreateFlightEstimateRequest.prototype['create_order'] = false;
 
 export default CreateFlightEstimateRequest;
diff --git a/src/model/CreateMassEstimateRequest.js b/src/model/CreateMassEstimateRequest.js
index e9d4269..d89654f 100644
--- a/src/model/CreateMassEstimateRequest.js
+++ b/src/model/CreateMassEstimateRequest.js
@@ -44,7 +44,7 @@ class CreateMassEstimateRequest {
 
 CreateMassEstimateRequest.prototype['mass_g'] = undefined;
 
-CreateMassEstimateRequest.prototype['create_order'] = undefined;
+CreateMassEstimateRequest.prototype['create_order'] = false;
 
 CreateMassEstimateRequest.prototype['project_id'] = undefined;
 
diff --git a/src/model/CreateShippingEstimateRequest.js b/src/model/CreateShippingEstimateRequest.js
index 9cfd86b..f0b2b48 100644
--- a/src/model/CreateShippingEstimateRequest.js
+++ b/src/model/CreateShippingEstimateRequest.js
@@ -74,6 +74,6 @@ CreateShippingEstimateRequest.prototype['transportation_method'] = undefined;
 
 CreateShippingEstimateRequest.prototype['project_id'] = undefined;
 
-CreateShippingEstimateRequest.prototype['create_order'] = undefined;
+CreateShippingEstimateRequest.prototype['create_order'] = false;
 
 export default CreateShippingEstimateRequest;
diff --git a/src/model/CreateVehicleEstimateRequest.js b/src/model/CreateVehicleEstimateRequest.js
index b5f3c0e..7cc9cd8 100644
--- a/src/model/CreateVehicleEstimateRequest.js
+++ b/src/model/CreateVehicleEstimateRequest.js
@@ -67,6 +67,6 @@ CreateVehicleEstimateRequest.prototype['year'] = undefined;
 
 CreateVehicleEstimateRequest.prototype['project_id'] = undefined;
 
-CreateVehicleEstimateRequest.prototype['create_order'] = undefined;
+CreateVehicleEstimateRequest.prototype['create_order'] = false;
 
 export default CreateVehicleEstimateRequest;
diff --git a/test/integration/estimates.test.js b/test/integration/estimates.test.js
index 5c80bcf..6592071 100644
--- a/test/integration/estimates.test.js
+++ b/test/integration/estimates.test.js
@@ -111,6 +111,17 @@ describe('Estimates Integration', function () {
     expect(estimate1.mass_g).to.be.above(estimate2.mass_g);
   });
 
+  it('supports creating bitcoin estimates with a daily balance', async function () {
+    const { data: estimate1 } = await patch.estimates.createBitcoinEstimate({
+      average_daily_balance_btc_sats: 1000000
+    });
+    const { data: estimate2 } = await patch.estimates.createBitcoinEstimate({
+      average_daily_balance_btc_sats: 10000000
+    });
+
+    expect(estimate1.mass_g).to.be.below(estimate2.mass_g);
+  });
+
   it('supports creating ethereum estimates with a gas value', async function () {
     const createEstimateResponse = await patch.estimates.createEthereumEstimate(
       {