diff --git a/src/app/api/payments/danal/ready/route.ts b/src/app/api/payments/danal/ready/route.ts
index 96a1903..e43df36 100644
--- a/src/app/api/payments/danal/ready/route.ts
+++ b/src/app/api/payments/danal/ready/route.ts
@@ -1,6 +1,7 @@
 import { NextResponse } from "next/server";
 
 import { requestDanalReady } from "@/lib/payments/danal/ready";
+import { createServiceRoleClient } from "@/lib/supabase";
 import type { MentoringPlanId } from "@/app/mentoring/apply/_config/mentoringPlans";
 
 type ReadyPayload = {
@@ -64,6 +65,29 @@ export async function POST(request: Request) {
       { cancelUrl, returnUrl },
     );
 
+    const supabase = createServiceRoleClient();
+    const { error } = await supabase.from("payments").insert({
+      order_id: body.orderId,
+      plan_id: planId,
+      amount: body.amount,
+      item_name: body.itemName,
+      user_id: body.userId,
+      user_name: body.userName,
+      user_phone: body.userPhone,
+      user_email: body.userEmail ?? null,
+      user_agent: body.userAgent,
+      bypass_value: body.bypassValue ?? null,
+      danal_start_url: readyResponse.startUrl,
+      danal_start_params: readyResponse.startParams,
+    });
+
+    if (error) {
+      return NextResponse.json(
+        { error: "결제 정보를 저장하지 못했습니다." },
+        { status: 500 },
+      );
+    }
+
     return NextResponse.json(readyResponse);
   } catch (error) {
     const message =
diff --git a/src/lib/supabase.ts b/src/lib/supabase.ts
index 3ef3e21..96de3f9 100644
--- a/src/lib/supabase.ts
+++ b/src/lib/supabase.ts
@@ -30,6 +30,23 @@ type PartnershipInquiryRow = {
   created_at: string;
 };
 
+type PaymentRow = {
+  id: string;
+  order_id: string;
+  plan_id: "standard" | "plus";
+  amount: number;
+  item_name: string;
+  user_id: string;
+  user_name: string;
+  user_phone: string;
+  user_email: string | null;
+  user_agent: "PC" | "MW" | "MA" | "MI";
+  bypass_value: string | null;
+  danal_start_url: string;
+  danal_start_params: string;
+  created_at: string;
+};
+
 type Database = {
   public: {
     Tables: {
@@ -52,6 +69,15 @@ type Database = {
         Update: Partial<PartnershipInquiryRow>;
         Relationships: [];
       };
+      payments: {
+        Row: PaymentRow;
+        Insert: Omit<PaymentRow, "id" | "created_at"> & {
+          id?: string;
+          created_at?: string;
+        };
+        Update: Partial<PaymentRow>;
+        Relationships: [];
+      };
     };
     Views: Record<string, never>;
     Functions: Record<string, never>;
diff --git a/supabase/schema.sql b/supabase/schema.sql
index fbaf34d..89fed60 100644
--- a/supabase/schema.sql
+++ b/supabase/schema.sql
@@ -43,3 +43,23 @@ create index if not exists partnership_inquiries_created_at_idx
   on public.partnership_inquiries (created_at desc);
 create index if not exists partnership_inquiries_contact_email_idx
   on public.partnership_inquiries (lower(contact_email));
+
+create table if not exists public.payments (
+  id uuid primary key default gen_random_uuid(),
+  order_id text not null unique check (char_length(btrim(order_id)) > 0),
+  plan_id text not null check (plan_id in ('standard', 'plus')),
+  amount integer not null check (amount > 0),
+  item_name text not null check (char_length(btrim(item_name)) > 0),
+  user_id text not null check (char_length(btrim(user_id)) > 0),
+  user_name text not null check (char_length(btrim(user_name)) > 0),
+  user_phone text not null check (char_length(btrim(user_phone)) > 0),
+  user_email text,
+  user_agent text not null check (user_agent in ('PC', 'MW', 'MA', 'MI')),
+  bypass_value text,
+  danal_start_url text not null check (char_length(btrim(danal_start_url)) > 0),
+  danal_start_params text not null check (char_length(btrim(danal_start_params)) > 0),
+  created_at timestamptz not null default timezone('utc', now())
+);
+
+create index if not exists payments_created_at_idx on public.payments (created_at desc);
+create index if not exists payments_order_id_idx on public.payments (order_id);