diff --git a/lib/v0/client_accounts/base.js b/lib/v0/client_accounts/base.js
new file mode 100644
index 000000000..c24299709
--- /dev/null
+++ b/lib/v0/client_accounts/base.js
@@ -0,0 +1,52 @@
+const demoData = require('../demoData')
+
+module.exports = {
+  name: {
+    type: 'string'
+  },
+  display_name: {
+    type: 'string',
+    pattern: '^[a-z0-9_-]*$'
+  },
+  email: {
+    type: 'string',
+    format: 'email'
+  },
+  email_confirmed: {
+    type: 'boolean'
+  },
+  password: {
+    type: 'string',
+    minLength: 5,
+    maxLength: 36
+  },
+  test_account: {
+    type: 'boolean'
+  },
+  template: {
+    type: 'string',
+    'enum': [
+      'tillhub_init',
+      'tillhub_init_legacy'
+    ],
+    'default': 'tillhub_init'
+  },
+  dashboard: {
+    type: 'string',
+    'enum': [
+      'tillhub',
+      'shore',
+      'localsearch'
+    ],
+    'default': 'tillhub'
+  },
+  demo_data: {
+    anyOf: [
+      {
+        ...demoData
+      },
+      {
+        type: 'null'
+      }
+    ]
+  }}
diff --git a/lib/v0/client_accounts/create.js b/lib/v0/client_accounts/create.js
new file mode 100644
index 000000000..488945b12
--- /dev/null
+++ b/lib/v0/client_accounts/create.js
@@ -0,0 +1,13 @@
+const base = require('./base')
+
+module.exports.request = {
+  $id: 'https://schemas.tillhub.com/v0/client_accounts.create.request.schema.json',
+  $schema: 'http://json-schema.org/draft-07/schema#',
+  additionalProperties: false,
+  required: [
+    'email',
+    'password'
+  ],
+  properties: base,
+  type: 'object'
+}
diff --git a/lib/v0/client_accounts/demoData.js b/lib/v0/client_accounts/demoData.js
new file mode 100644
index 000000000..7f1d4355f
--- /dev/null
+++ b/lib/v0/client_accounts/demoData.js
@@ -0,0 +1,64 @@
+module.exports = {
+  type: 'object',
+  required: [
+    'accounts',
+    'expenses',
+    'taxes',
+    'payment_options',
+    'branches_registers',
+    'staff'
+  ],
+  properties: {
+    accounts: {
+      type: 'string',
+      'enum': [
+        'de_skr_03',
+        'de_skr_04',
+        'ch'
+      ]
+    },
+    expenses: {
+      type: 'string',
+      'enum': [
+        'standard_german',
+        'standard_english',
+        'fleurop'
+      ]
+    },
+    taxes: {
+      type: 'string',
+      'enum': [
+        'de',
+        'ch'
+      ]
+    },
+    payment_options: {
+      'type': 'array',
+      'items': {
+        'type': 'string',
+        'enum': [
+          'voucher',
+          'ccvfly',
+          'rechnung',
+          'amex',
+          'concardis',
+          'bar',
+          'card_circuits'
+        ]
+      }
+    }
+  },
+  branches_registers: {
+    type: 'string',
+    'enum': [
+      'basic',
+      'basic_v1'
+    ]
+  },
+  staff: {
+    type: 'string',
+    'enum': [
+      'default'
+    ]
+  }
+}
diff --git a/lib/v0/client_accounts/index.js b/lib/v0/client_accounts/index.js
new file mode 100644
index 000000000..1f574111f
--- /dev/null
+++ b/lib/v0/client_accounts/index.js
@@ -0,0 +1,2 @@
+module.exports.create = require('./create')
+module.exports.update = require('./update')
diff --git a/lib/v0/client_accounts/update.js b/lib/v0/client_accounts/update.js
new file mode 100644
index 000000000..8b85f0e1f
--- /dev/null
+++ b/lib/v0/client_accounts/update.js
@@ -0,0 +1,10 @@
+const base = require('./base')
+
+module.exports.request = {
+  $id: 'https://schemas.tillhub.com/v0/client_accounts.update.request.schema.json',
+  $schema: 'http://json-schema.org/draft-07/schema#',
+  additionalProperties: false,
+  type: 'object',
+  required: [],
+  properties: base
+}
diff --git a/lib/v0/index.js b/lib/v0/index.js
index 088fd3512..8f990ab97 100644
--- a/lib/v0/index.js
+++ b/lib/v0/index.js
@@ -38,3 +38,4 @@ module.exports.voucher_systems = require('./voucher_systems')
 module.exports.manufacturers = require('./manufacturers')
 module.exports.custom_hooks = require('./custom_hooks')
 module.exports.analytics = require('./analytics')
+module.exports.analytics = require('./client_accounts')