diff --git a/core/modules/number/config/schema/number.schema.yml b/core/modules/number/config/schema/number.schema.yml
new file mode 100644
index 0000000..7f7150e
--- /dev/null
+++ b/core/modules/number/config/schema/number.schema.yml
@@ -0,0 +1,127 @@
+# Schema for configuration files of the Number module.
+
+field.number_integer.settings:
+  type: sequence
+  label: 'Integer settings'
+  sequence:
+    - type: string
+      label: 'setting'
+
+field.number_integer.instance_settings:
+  type: mapping
+  label: 'Integer'
+  mapping:
+    min:
+      type: integer
+      label: 'Minimum'
+    max:
+      type: integer
+      label: 'Maximum'
+    prefix:
+      type: string
+      label: 'Prefix'
+    suffix:
+      type: string
+      label: 'Suffix'
+    user_register_form:
+      type: boolean
+      label: 'Display on user registration form.'
+
+field.number_integer.value:
+  type: sequence
+  label: 'Default value'
+  sequence:
+    - type: mapping
+      label: 'Default value'
+      mapping:
+        value:
+          type: integer
+          label: 'Value'
+
+field.number_decimal.settings:
+  type: mapping
+  label: 'Decimal settings'
+  mapping:
+    precision:
+      type: integer
+      label: 'Precision'
+    scale:
+      type: integer
+      label: 'Scale'
+
+field.number_decimal.instance_settings:
+  type: mapping
+  label: 'Decimal'
+  mapping:
+    min:
+      type: integer
+      label: 'Minimum'
+    max:
+      type: integer
+      label: 'Maximum'
+    prefix:
+      type: string
+      label: 'Prefix'
+    suffix:
+      type: string
+      label: 'Suffix'
+    user_register_form:
+      type: boolean
+      label: 'Display on user registration form.'
+
+field.number_decimal.value:
+   type: sequence
+   label: 'Default value'
+   sequence:
+     - type: mapping
+       label: 'Default value'
+       mapping:
+         value:
+           type: integer
+           label: 'Value'
+
+field.number_float.settings:
+  type: sequence
+  label: 'Float settings'
+  sequence:
+    - type: string
+      label: 'setting'
+
+field.number_float.instance_settings:
+  type: mapping
+  label: 'Float'
+  mapping:
+    min:
+      type: integer
+      label: 'Minimum'
+    max:
+      type: integer
+      label: 'Maximum'
+    prefix:
+      type: string
+      label: 'Prefix'
+    suffix:
+      type: string
+      label: 'Suffix'
+    user_register_form:
+      type: boolean
+      label: 'Display on user registration form.'
+
+field.number_float.value:
+  type: sequence
+  label: 'Default value'
+  sequence:
+    - type: mapping
+      label: 'Default value'
+      mapping:
+        value:
+          type: integer
+          label: 'Value'
+
+field_widget.number.settings:
+  type: mapping
+  label: ''
+  mapping:
+    placeholder:
+      type: label
+      label: 'Placeholder'