diff --git a/README.md b/README.md
index a6591cf..c08c149 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ end
 
 You can find your `api_secret_key` in the [Authsignal Portal](https://portal.authsignal.com/organisations/tenants/api).
 
-You must specify the correct `baseUrl` for your tenant's region.
+You must specify the correct `api_url` for your tenant's region.
 
 | Region      | Base URL                            |
 | ----------- | ----------------------------------- |
@@ -40,14 +40,14 @@ You must specify the correct `baseUrl` for your tenant's region.
 | AU (Sydney) | https://au.signal.authsignal.com/v1 |
 | EU (Dublin) | https://eu.signal.authsignal.com/v1 |
 
-For example, to set the base URL to use our AU region:
+For example, to set the API URL to use our AU region:
 
 ```
 require 'authsignal'
 
 Authsignal.setup do |config|
     config.api_secret_key = ENV["AUTHSIGNAL_SECRET_KEY"]
-    config.base_uri = "https://au.signal.authsignal.com/v1"
+    config.api_url = "https://au.signal.authsignal.com/v1"
 
     # If you would like the Authsignal client to retry requests due to network issues
     config.retry = true # default value: false
diff --git a/lib/authsignal/client.rb b/lib/authsignal/client.rb
index 9de578d..643294e 100644
--- a/lib/authsignal/client.rb
+++ b/lib/authsignal/client.rb
@@ -17,7 +17,7 @@ def initialize(retry_options: RETRY_OPTIONS)
             @api_key = require_api_key
 
             @client = Faraday.new do |builder|
-                builder.url_prefix = Authsignal.configuration.base_uri
+                builder.url_prefix = Authsignal.configuration.api_url
                 builder.adapter :net_http
                 builder.request :authorization, :basic, @api_key, nil
 
diff --git a/lib/authsignal/configuration.rb b/lib/authsignal/configuration.rb
index 8766f9d..de28f95 100644
--- a/lib/authsignal/configuration.rb
+++ b/lib/authsignal/configuration.rb
@@ -13,7 +13,7 @@ def self.config_option(name)
         end
   
         config_option :api_secret_key
-        config_option :base_uri
+        config_option :api_url
         config_option :debug
         config_option :retry
 
@@ -22,7 +22,7 @@ def initialize
       
             # set default attribute values
             @defaults = OpenStruct.new({
-                base_uri: 'https://signal.authsignal.com/v1/',
+                api_url: 'https://signal.authsignal.com/v1/',
                 retry: false,
                 debug: false
             })
diff --git a/spec/authsignal/authsignal_spec.rb b/spec/authsignal/authsignal_spec.rb
index ada1b5a..bda0942 100644
--- a/spec/authsignal/authsignal_spec.rb
+++ b/spec/authsignal/authsignal_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 RSpec.describe Authsignal do
-  let(:base_uri) { 'http://localhost:8080/v1' }
+  let(:api_url) { 'http://localhost:8080/v1' }
 
   it "has a version number" do
     expect(Authsignal::VERSION).not_to be nil
@@ -10,7 +10,7 @@
   before do
     Authsignal.setup do |config|
       config.api_secret_key = 'secret'
-      config.base_uri = base_uri
+      config.api_url = api_url
     end
   end
 
@@ -20,7 +20,7 @@
     let(:idempotency_key) { "f7f6ff4c-600f-4d61-99a2-b1157fe43777" }
     let(:user_id) { 123 }
     let(:action) { 'signIn' }
-    let(:url) { "#{base_uri}/users/#{user_id}/actions/#{action}" }
+    let(:url) { "#{api_url}/users/#{user_id}/actions/#{action}" }
 
     it 'handles plain text' do
       stub_request(:post, url)
@@ -36,7 +36,7 @@
 
   describe ".get_user" do
     it 'succeeds' do
-      stub_request(:get, "#{base_uri}/users/1")
+      stub_request(:get, "#{api_url}/users/1")
           .with(basic_auth: ['secret', ''])
           .to_return(body: {isEnrolled: false, url: "https://www.example.com", accessToken: "xxx"}.to_json,
                     status: 200,
@@ -51,7 +51,7 @@
 
   describe ".update_user" do
     it 'succeeds' do
-      stub_request(:post, "#{base_uri}/users/1")
+      stub_request(:post, "#{api_url}/users/1")
           .with(basic_auth: ['secret', ''], body: { email: "test@test.com" })
           .to_return(body: {userId: "1", email: "test@test.com"}.to_json,
                     status: 200,
@@ -66,7 +66,7 @@
 
   describe ".delete_user" do
     it 'succeeds' do
-      stub_request(:delete, "#{base_uri}/users/1")
+      stub_request(:delete, "#{api_url}/users/1")
           .with(basic_auth: ['secret', ''])
           .to_return(body: {success: true}.to_json,
                     status: 200,
@@ -93,7 +93,7 @@
         recoveryCodes: ["xxxx"]
       }
 
-      stub_request(:post, "#{base_uri}/users/1/authenticators")
+      stub_request(:post, "#{api_url}/users/1/authenticators")
           .with(basic_auth: ['secret', ''])
           .with(body: { oobChannel:"SMS",phoneNumber:"+64270000000" })
           .to_return(body: payload.to_json,
@@ -121,7 +121,7 @@
 
   describe ".delete_authenticator" do
     it 'succeeds' do
-      stub_request(:delete, "#{base_uri}/users/1/authenticators/9b2cfd40-7df2-4658-852d-a0c3456e5a2e")
+      stub_request(:delete, "#{api_url}/users/1/authenticators/9b2cfd40-7df2-4658-852d-a0c3456e5a2e")
           .with(basic_auth: ['secret', ''])
           .to_return(body: {success: true}.to_json,
                     status: 200,
@@ -138,7 +138,7 @@
     let(:idempotency_key) { "f7f6ff4c-600f-4d61-99a2-b1157fe43777" }
     let(:user_id) { 123 }
     let(:action) { 'signIn' }
-    let(:url) { "#{base_uri}/users/#{user_id}/actions/#{action}" }
+    let(:url) { "#{api_url}/users/#{user_id}/actions/#{action}" }
 
     it 'succeeds' do
       stub_request(:post, url)
@@ -203,7 +203,7 @@
 
   describe ".get_action" do
     it 'succeeds' do
-      stub_request(:get, "#{base_uri}/users/1/actions/testAction/15cac140-f639-48c5-92db-835ec8d3d144")
+      stub_request(:get, "#{api_url}/users/1/actions/testAction/15cac140-f639-48c5-92db-835ec8d3d144")
           .with(basic_auth: ['secret', ''])
           .to_return(body: {state: "ALLOW", ruleIds: [], stateUpdatedAt: "2022-07-25T03:19:00.316Z", createdAt: "2022-07-25T03:19:00.316Z"}.to_json,
                     status: 200,
@@ -228,7 +228,7 @@
     let(:state) { "ALLOW" }
 
     it "succeeds" do
-      stub_request(:patch, "#{base_uri}/users/#{user_id}/actions/#{action}/#{idempotency_key}")
+      stub_request(:patch, "#{api_url}/users/#{user_id}/actions/#{action}/#{idempotency_key}")
           .with(
             basic_auth: ['secret', ''],
             headers: { 'Content-Type'=>'application/json' })
@@ -251,7 +251,7 @@
 
   describe ".validate_challenge" do
     it "Checks that the isValid is true when userId correct" do
-      stub_request(:post, "#{base_uri}/validate")
+      stub_request(:post, "#{api_url}/validate")
       .with(
         headers: {
           'Content-Type'=>'application/json',
@@ -283,7 +283,7 @@
     end
 
     it "Checks that isValid is false when userId is incorrect" do
-      stub_request(:post, "#{base_uri}/validate")
+      stub_request(:post, "#{api_url}/validate")
       .with(
         headers: {
           'Content-Type'=>'application/json',
@@ -310,7 +310,7 @@
     end
 
     it "Checks that isValid is false when action is invalid" do
-      stub_request(:post, "#{base_uri}/validate")
+      stub_request(:post, "#{api_url}/validate")
       .with(
         headers: {
           'Content-Type'=>'application/json',
@@ -336,7 +336,7 @@
     end
 
     it "Checks that an error is thrown when an unknown error is returned from Authsignal" do
-      stub_request(:post, "#{base_uri}/validate")
+      stub_request(:post, "#{api_url}/validate")
       .with(
         headers: {
           'Content-Type'=>'application/json',