diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c3b67ec..6d58adb5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,10 @@
 # Changelog
 
+## 10.1.0 - 2020-11-28
+* [#113](https://github.com/vapor-community/stripe-kit/pull/113) Added support for [Customer Portal](https://stripe.com/docs/api/customer_portal) API.
+
 ## 10.0.0 - 2020-11-10
-* [#122](https://github.com/vapor-community/stripe-kit/pull/112) Updated to latest 2020-08-27 API version.
+* [#112](https://github.com/vapor-community/stripe-kit/pull/112) Updated to latest 2020-08-27 API version.
 
 ## 8.0.0 - 2020-07-21
 * [#98](https://github.com/vapor-community/stripe-kit/pull/98) Added support for the `Price`s API.
diff --git a/README.md b/README.md
index ec257be8..2381838f 100644
--- a/README.md
+++ b/README.md
@@ -228,6 +228,7 @@ See the [Vapor helper library](https://github.com/vapor-community/stripe) to use
 * [x] Mandates
 * [x] PaymentIntents
 * [x] SetupIntents
+* [x] SetupAttempts
 * [x] Payouts
 * [x] Prices
 * [x] Products
@@ -247,11 +248,13 @@ See the [Vapor helper library](https://github.com/vapor-community/stripe) to use
 * [x] Coupons
 * [x] Credit Notes
 * [x] Customer Balance Transactions
+* [x] Customer Portal
 * [x] Customer Tax IDs
 * [x] Discounts
 * [x] Invoices
 * [x] Invoice Items
 * [x] Plans
+* [x] Promotion Codes
 * [x] Products
 * [x] Subscriptions
 * [x] Subscription items
diff --git a/Sources/StripeKit/Billing/Customer Portal/CustomerSession.swift b/Sources/StripeKit/Billing/Customer Portal/CustomerSession.swift
new file mode 100644
index 00000000..e3c88f43
--- /dev/null
+++ b/Sources/StripeKit/Billing/Customer Portal/CustomerSession.swift	
@@ -0,0 +1,25 @@
+//
+//  CustomerSession.swift
+//  
+//
+//  Created by Andrew Edwards on 11/28/20.
+//
+
+import Foundation
+
+public struct StripeCustomerSession: StripeModel {
+    /// Unique identifier for the object.
+    public var id: String
+    /// String representing the object’s type. Objects of the same type share the same value.
+    public var object: String?
+    /// Time at which the object was created. Measured in seconds since the Unix epoch.
+    public var created: Date
+    /// The ID of the customer for this session.
+    public var customer: String?
+    /// Has the value true if the object exists in live mode or the value false if the object exists in test mode.
+    public var livemode: Bool?
+    /// The URL to which Stripe should send customers when they click on the link to return to your website.
+    public var returnUrl: String?
+    /// The short-lived URL of the session giving customers access to the customer portal.
+    public var url: String?
+}
diff --git a/Sources/StripeKit/Billing/Customer Portal/CustomerSessionRoutes.swift b/Sources/StripeKit/Billing/Customer Portal/CustomerSessionRoutes.swift
new file mode 100644
index 00000000..6f705d08
--- /dev/null
+++ b/Sources/StripeKit/Billing/Customer Portal/CustomerSessionRoutes.swift	
@@ -0,0 +1,45 @@
+//
+//  CustomerSessionRoutes.swift
+//  
+//
+//  Created by Andrew Edwards on 11/28/20.
+//
+
+import NIO
+import NIOHTTP1
+
+public protocol CustomerSessionRoutes {
+    
+    /// Creates a session of the customer portal.
+    /// - Parameters:
+    ///   - customer: The ID of an existing customer.
+    ///   - returnUrl: The URL to which Stripe should send customers when they click on the link to return to your website. This field is required if a default return URL has not been configured for the portal.
+    func create(customer: String, returnUrl: String?) -> EventLoopFuture<StripeCustomerSession>
+}
+
+extension CustomerSessionRoutes {
+    public func create(customer: String, returnUrl: String? = nil) -> EventLoopFuture<StripeCustomerSession> {
+        create(customer: customer, returnUrl: returnUrl)
+    }
+}
+
+public struct StripeCustomerSessionRoutes: CustomerSessionRoutes {
+    public var headers: HTTPHeaders = [:]
+    
+    private let apiHandler: StripeAPIHandler
+    private let sessions = APIBase + APIVersion + "billing_portal/sessions"
+    
+    init(apiHandler: StripeAPIHandler) {
+        self.apiHandler = apiHandler
+    }
+    
+    public func create(customer: String, returnUrl: String?) -> EventLoopFuture<StripeCustomerSession> {
+        var body: [String: Any] = ["customer": customer]
+        
+        if let returnUrl = returnUrl {
+            body["return_url"] = returnUrl
+        }
+        
+        return apiHandler.send(method: .POST, path: sessions, body: .string(body.queryParameters))
+    }
+}
diff --git a/Sources/StripeKit/StripeClient.swift b/Sources/StripeKit/StripeClient.swift
index 0631540f..985063ca 100644
--- a/Sources/StripeKit/StripeClient.swift
+++ b/Sources/StripeKit/StripeClient.swift
@@ -41,6 +41,7 @@ public final class StripeClient {
     public var coupons: CouponRoutes
     public var creditNotes: CreditNoteRoutes
     public var customerBalanceTransactions: CustomerBalanceTransactionRoutes
+    public var customerSession: CustomerSessionRoutes
     public var customerTaxIds: CustomerTaxIDRoutes
     public var discounts: DiscountRoutes
     public var invoices: InvoiceRoutes
@@ -137,6 +138,7 @@ public final class StripeClient {
         coupons = StripeCouponRoutes(apiHandler: handler)
         creditNotes = StripeCreditNoteRoutes(apiHandler: handler)
         customerBalanceTransactions = StripeCustomerBalanceTransactionRoutes(apiHandler: handler)
+        customerSession = StripeCustomerSessionRoutes(apiHandler: handler)
         customerTaxIds = StripeCustomerTaxIDRoutes(apiHandler: handler)
         discounts = StripeDiscountRoutes(apiHandler: handler)
         invoices = StripeInvoiceRoutes(apiHandler: handler)