diff --git a/framework/bigcommerce/api/index.ts b/framework/bigcommerce/api/index.ts
index 609ffcfca..90e04a6a4 100644
--- a/framework/bigcommerce/api/index.ts
+++ b/framework/bigcommerce/api/index.ts
@@ -13,6 +13,7 @@ import type { CartAPI } from './cart'
 import type { CustomerAPI } from './customer'
 import type { LoginAPI } from './login'
 import type { LogoutAPI } from './logout'
+import type { SignupAPI } from './signup'
 import login from './operations/login'
 
 export interface BigcommerceConfig extends CommerceAPIConfig {
@@ -114,7 +115,7 @@ export const provider = {
 
 export type Provider = typeof provider
 
-export type APIs = CartAPI | CustomerAPI | LoginAPI | LogoutAPI
+export type APIs = CartAPI | CustomerAPI | LoginAPI | LogoutAPI | SignupAPI
 
 export type BigcommerceAPI<P extends Provider = Provider> = CommerceAPI<P>
 
diff --git a/framework/bigcommerce/api/signup/index.ts b/framework/bigcommerce/api/signup/index.ts
new file mode 100644
index 000000000..9e656990e
--- /dev/null
+++ b/framework/bigcommerce/api/signup/index.ts
@@ -0,0 +1,10 @@
+import type { GetAPISchema } from '@commerce/api'
+import type { SignupSchema } from '../../types/signup'
+import type { BigcommerceAPI } from '..'
+import signup from './signup'
+
+export type SignupAPI = GetAPISchema<BigcommerceAPI, SignupSchema>
+
+export type SignupEndpoint = SignupAPI['endpoint']
+
+export const operations = { signup }
diff --git a/framework/bigcommerce/api/signup/signup.ts b/framework/bigcommerce/api/signup/signup.ts
new file mode 100644
index 000000000..df4f6ec57
--- /dev/null
+++ b/framework/bigcommerce/api/signup/signup.ts
@@ -0,0 +1,62 @@
+import { BigcommerceApiError } from '../utils/errors'
+import type { SignupEndpoint } from '.'
+
+const signup: SignupEndpoint['operations']['signup'] = async ({
+  res,
+  body: { firstName, lastName, email, password },
+  config,
+  commerce,
+}) => {
+  // TODO: Add proper validations with something like Ajv
+  if (!(firstName && lastName && email && password)) {
+    return res.status(400).json({
+      data: null,
+      errors: [{ message: 'Invalid request' }],
+    })
+  }
+  // TODO: validate the password and email
+  // Passwords must be at least 7 characters and contain both alphabetic
+  // and numeric characters.
+
+  try {
+    await config.storeApiFetch('/v3/customers', {
+      method: 'POST',
+      body: JSON.stringify([
+        {
+          first_name: firstName,
+          last_name: lastName,
+          email,
+          authentication: {
+            new_password: password,
+          },
+        },
+      ]),
+    })
+  } catch (error) {
+    if (error instanceof BigcommerceApiError && error.status === 422) {
+      const hasEmailError = '0.email' in error.data?.errors
+
+      // If there's an error with the email, it most likely means it's duplicated
+      if (hasEmailError) {
+        return res.status(400).json({
+          data: null,
+          errors: [
+            {
+              message: 'The email is already in use',
+              code: 'duplicated_email',
+            },
+          ],
+        })
+      }
+    }
+
+    throw error
+  }
+
+  // Login the customer right after creating it
+  await commerce.login({ variables: { email, password }, res, config })
+
+  res.status(200).json({ data: null })
+}
+
+export default signup
diff --git a/framework/bigcommerce/types/signup.ts b/framework/bigcommerce/types/signup.ts
new file mode 100644
index 000000000..58543c6f6
--- /dev/null
+++ b/framework/bigcommerce/types/signup.ts
@@ -0,0 +1 @@
+export * from '@commerce/types/signup'
diff --git a/framework/commerce/api/endpoints/signup.ts b/framework/commerce/api/endpoints/signup.ts
new file mode 100644
index 000000000..d18542289
--- /dev/null
+++ b/framework/commerce/api/endpoints/signup.ts
@@ -0,0 +1,38 @@
+import type { SignupSchema } from '../../types/signup'
+import { CommerceAPIError } from '../utils/errors'
+import isAllowedOperation from '../utils/is-allowed-operation'
+import type { GetAPISchema } from '..'
+
+const signupEndpoint: GetAPISchema<
+  any,
+  SignupSchema
+>['endpoint']['handler'] = async (ctx) => {
+  const { req, res, operations, config } = ctx
+
+  if (
+    !isAllowedOperation(req, res, {
+      POST: operations['signup'],
+    })
+  ) {
+    return
+  }
+
+  const { cookies } = req
+  const cartId = cookies[config.cartCookie]
+
+  try {
+    const body = { ...req.body, cartId }
+    return await operations['signup']({ ...ctx, body })
+  } catch (error) {
+    console.error(error)
+
+    const message =
+      error instanceof CommerceAPIError
+        ? 'An unexpected error ocurred with the Commerce API'
+        : 'An unexpected error ocurred'
+
+    res.status(500).json({ data: null, errors: [{ message }] })
+  }
+}
+
+export default signupEndpoint
diff --git a/framework/commerce/api/index.ts b/framework/commerce/api/index.ts
index f55bf9ce2..3d1521fbd 100644
--- a/framework/commerce/api/index.ts
+++ b/framework/commerce/api/index.ts
@@ -5,6 +5,7 @@ import type { CartSchema } from '../types/cart'
 import type { CustomerSchema } from '../types/customer'
 import type { LoginSchema } from '../types/login'
 import type { LogoutSchema } from '../types/logout'
+import type { SignupSchema } from '../types/signup'
 import {
   defaultOperations,
   OPERATIONS,
@@ -17,6 +18,7 @@ export type APISchemas =
   | CustomerSchema
   | LoginSchema
   | LogoutSchema
+  | SignupSchema
 
 export type GetAPISchema<
   C extends CommerceAPI<any>,
diff --git a/framework/commerce/types/signup.ts b/framework/commerce/types/signup.ts
new file mode 100644
index 000000000..ae25da0f0
--- /dev/null
+++ b/framework/commerce/types/signup.ts
@@ -0,0 +1,22 @@
+export type SignupBody = {
+  firstName: string
+  lastName: string
+  email: string
+  password: string
+}
+
+export type SignupTypes = {
+  body: SignupBody
+}
+
+export type SignupSchema<T extends SignupTypes = SignupTypes> = {
+  endpoint: {
+    options: {}
+    operations: {
+      signup: {
+        data: null
+        body: T['body']
+      }
+    }
+  }
+}
diff --git a/pages/api/signup.ts b/pages/api/signup.ts
new file mode 100644
index 000000000..bc24f407a
--- /dev/null
+++ b/pages/api/signup.ts
@@ -0,0 +1,8 @@
+import signup from '@commerce/api/endpoints/signup'
+import { SignupAPI, operations } from '@framework/api/signup'
+import commerce from '@lib/api/commerce'
+
+export default commerce.endpoint({
+  handler: signup as SignupAPI['endpoint']['handler'],
+  operations,
+})