diff --git a/src/validation.ts b/src/validation.ts
new file mode 100644
index 0000000..6ae8f08
--- /dev/null
+++ b/src/validation.ts
@@ -0,0 +1,23 @@
+import { z, ZodSchema } from "zod";
+
+export function parseBody<T>(schema: ZodSchema<T>, body: unknown) {
+  const result = schema.safeParse(body);
+  if (result.success) return { ok: true as const, data: result.data };
+  return {
+    ok: false as const,
+    status: 400 as const,
+    error: {
+      message: "Validation failed",
+      issues: result.error.issues.map((i) => ({
+        path: i.path.join("."),
+        message: i.message,
+      })),
+    },
+  };
+}
+
+export const paySchema = z.object({
+  amount: z.number().positive(),
+  asset: z.string().min(1),
+  destination: z.string().min(1),
+});