diff --git a/src/schemas/index.ts b/src/schemas/index.ts
index 8bcdb3b..94817ce 100644
--- a/src/schemas/index.ts
+++ b/src/schemas/index.ts
@@ -10,9 +10,19 @@ function buildZodSchema(backendType: BackendType): z.ZodObject<Record<string, z.
   const fields = BACKEND_REGISTRY[backendType].fields;
   const shape: Record<string, z.ZodTypeAny> = {};
   for (const field of fields) {
-    shape[field.key] = field.required
+    let schema: z.ZodTypeAny = field.required
       ? z.string().min(1, `${field.label} is required`)
-      : z.string().optional();
+      : z.string();
+
+    if (field.validate) {
+      schema = (schema as z.ZodString).regex(field.validate.regex, field.validate.message);
+    }
+
+    if (!field.required) {
+      schema = (schema as z.ZodString).optional();
+    }
+
+    shape[field.key] = schema;
   }
   return z.object(shape);
 }