diff --git a/src/base-commands/twilio-api-command.js b/src/base-commands/twilio-api-command.js
index 3e5240203..d3bab7d51 100644
--- a/src/base-commands/twilio-api-command.js
+++ b/src/base-commands/twilio-api-command.js
@@ -45,7 +45,15 @@ class TwilioApiCommand extends TwilioClientCommand {
   }
 }
 
-TwilioApiCommand.flags = TwilioClientCommand.flags;
+TwilioApiCommand.flags = Object.assign(
+  {
+    'skip-parameter-validation': flags.boolean({
+      default: false,
+      hidden: true
+    })
+  },
+  TwilioClientCommand.flags
+);
 
 // A static function to help us add the other static
 // fields required by oclif on our dynamically created
diff --git a/src/services/twilio-api/api-command-runner.js b/src/services/twilio-api/api-command-runner.js
index d017c4dc4..f6a1b1073 100644
--- a/src/services/twilio-api/api-command-runner.js
+++ b/src/services/twilio-api/api-command-runner.js
@@ -44,7 +44,7 @@ class ApiCommandRunner {
 
     // If there were any errors validating the flag values, log them by flag
     // key and throw.
-    if (Object.keys(flagErrors).length > 0) {
+    if (Object.keys(flagErrors).length > 0 && !this.flagValues['skip-parameter-validation']) {
       logger.error('Flag value validation errors:');
       Object.keys(flagErrors).forEach(key => {
         flagErrors[key].forEach(error => {
diff --git a/test/base-commands/twilio-api-command.test.js b/test/base-commands/twilio-api-command.test.js
index a250dbb3f..0fca7ef25 100644
--- a/test/base-commands/twilio-api-command.test.js
+++ b/test/base-commands/twilio-api-command.test.js
@@ -4,7 +4,7 @@ const { expect, test, constants } = require('@twilio/cli-test');
 const { fakeResource, fakeCallResponse } = require('./twilio-api-command.fixtures');
 const { Config, ConfigData } = require('@twilio/cli-core').services.config;
 
-const NUMBER_OF_BASE_COMMAND_FLAGS = 4;
+const NUMBER_OF_BASE_COMMAND_FLAGS = 5;
 const NUMBER_OF_PARAMS_FOR_CALL_CREATE = fakeResource.actions.create.parameters.length;
 
 describe('base-commands', () => {
@@ -101,10 +101,7 @@ describe('base-commands', () => {
         .nock('https://api.twilio.com', api =>
           api.delete(`/2010-04-01/Accounts/${constants.FAKE_ACCOUNT_SID}/Calls/${fakeCallResponse.sid}.json`).reply(204)
         )
-        .twilioCommand(getCommandClass(callRemoveActionDefinition), [
-          '--sid',
-          fakeCallResponse.sid
-        ])
+        .twilioCommand(getCommandClass(callRemoveActionDefinition), ['--sid', fakeCallResponse.sid])
         .it('creates a call', ctx => {
           expect(ctx.stdout).to.be.empty;
           expect(ctx.stderr).to.contain('success');
@@ -128,6 +125,28 @@ describe('base-commands', () => {
         .it('exits with a failure code and prints validation errors', ctx => {
           expect(ctx.stderr).to.contain('validation errors');
         });
+
+      test
+        .twilioFakeProject(ConfigData)
+        .twilioCliEnv(Config)
+        .stdout()
+        .nock('https://api.twilio.com', api =>
+          api.post(`/2010-04-01/Accounts/${constants.FAKE_ACCOUNT_SID}/Calls.json`).reply(201, fakeCallResponse)
+        )
+        .twilioCommand(getCommandClass(), [
+          '--skip-parameter-validation',
+          '--from',
+          '+15555555555',
+          '--to',
+          '+14155555555',
+          '--url',
+          'http://example.com/',
+          '--account-sid',
+          'ac12345678901234567890123456789012' // Lower-cased 'ac'
+        ])
+        .it('creates a call with invalid parameter', ctx => {
+          expect(ctx.stdout).to.contain(fakeCallResponse.sid);
+        });
     });
   });
 });