diff --git a/apps/backend/src/lib/payments.tsx b/apps/backend/src/lib/payments.tsx
index c110df0c0..1865db6ba 100644
--- a/apps/backend/src/lib/payments.tsx
+++ b/apps/backend/src/lib/payments.tsx
@@ -62,7 +62,9 @@ export async function ensureProductIdOrInlineProduct(
         freeTrial: value.free_trial,
         serverOnly: true,
       }])),
-      metadata: inlineProduct.metadata,
+      clientMetadata: inlineProduct.client_metadata ?? undefined,
+      clientReadOnlyMetadata: inlineProduct.client_read_only_metadata ?? undefined,
+      serverMetadata: inlineProduct.server_metadata ?? undefined,
       includedItems: typedFromEntries(Object.entries(inlineProduct.included_items).map(([key, value]) => [key, {
         repeat: value.repeat ?? "never",
         quantity: value.quantity ?? 0,
@@ -429,7 +431,9 @@ export function productToInlineProduct(product: ProductWithMetadata): yup.InferT
     stackable: product.stackable === true,
     server_only: product.serverOnly === true,
     included_items: product.includedItems,
-    metadata: product.metadata,
+    client_metadata: product.clientMetadata ?? null,
+    client_read_only_metadata: product.clientReadOnlyMetadata ?? null,
+    server_metadata: product.serverMetadata ?? null,
     prices: product.prices === "include-by-default" ? {} : typedFromEntries(typedEntries(product.prices).map(([key, value]) => [key, filterUndefined({
       ...typedFromEntries(SUPPORTED_CURRENCIES.map(c => [c.code, getOrUndefined(value, c.code)])),
       interval: value.interval,
diff --git a/apps/e2e/tests/backend/endpoints/api/v1/payments/create-purchase-url.test.ts b/apps/e2e/tests/backend/endpoints/api/v1/payments/create-purchase-url.test.ts
index 7198f4024..328130201 100644
--- a/apps/e2e/tests/backend/endpoints/api/v1/payments/create-purchase-url.test.ts
+++ b/apps/e2e/tests/backend/endpoints/api/v1/payments/create-purchase-url.test.ts
@@ -300,7 +300,7 @@ it("should return inline product metadata when validating purchase code", async
           },
         },
         included_items: {},
-        metadata: {
+        server_metadata: {
           reference_id: "ref-123",
           features: ["priority-support", "analytics"],
         },
@@ -320,15 +320,43 @@ it("should return inline product metadata when validating purchase code", async
       full_code: fullCode,
     },
   });
-  expect(validateResponse.status).toBe(200);
-  const validateBody = validateResponse.body;
-  expect(validateBody.product.metadata).toMatchInlineSnapshot(`
-    {
-      "features": [
-        "priority-support",
-        "analytics",
-      ],
-      "reference_id": "ref-123",
+  expect(validateResponse).toMatchInlineSnapshot(`
+    NiceResponse {
+      "status": 200,
+      "body": {
+        "already_bought_non_stackable": false,
+        "charges_enabled": false,
+        "conflicting_products": [],
+        "product": {
+          "client_metadata": null,
+          "client_read_only_metadata": null,
+          "customer_type": "user",
+          "display_name": "Metadata Inline Product",
+          "included_items": {},
+          "prices": {
+            "monthly-metadata": {
+              "USD": "1500",
+              "interval": [
+                1,
+                "month",
+              ],
+            },
+          },
+          "server_metadata": {
+            "features": [
+              "priority-support",
+              "analytics",
+            ],
+            "reference_id": "ref-123",
+          },
+          "server_only": true,
+          "stackable": false,
+        },
+        "project_id": "<stripped UUID>",
+        "stripe_account_id": <stripped field 'stripe_account_id'>,
+        "test_mode": true,
+      },
+      "headers": Headers { <some fields may have been hidden> },
     }
   `);
 });
diff --git a/apps/e2e/tests/backend/endpoints/api/v1/payments/products.test.ts b/apps/e2e/tests/backend/endpoints/api/v1/payments/products.test.ts
index f4263230f..659c17d96 100644
--- a/apps/e2e/tests/backend/endpoints/api/v1/payments/products.test.ts
+++ b/apps/e2e/tests/backend/endpoints/api/v1/payments/products.test.ts
@@ -108,6 +108,8 @@ it("should grant configured subscription product and expose it via listing", asy
           {
             "id": "pro-plan",
             "product": {
+              "client_metadata": null,
+              "client_read_only_metadata": null,
               "customer_type": "user",
               "display_name": "Pro Plan",
               "included_items": {},
@@ -120,6 +122,7 @@ it("should grant configured subscription product and expose it via listing", asy
                   ],
                 },
               },
+              "server_metadata": null,
               "server_only": false,
               "stackable": false,
             },
@@ -200,6 +203,8 @@ it("should hide server-only products from clients while exposing them to servers
           {
             "id": "server-plan",
             "product": {
+              "client_metadata": null,
+              "client_read_only_metadata": null,
               "customer_type": "user",
               "display_name": "Server Plan",
               "included_items": {},
@@ -212,6 +217,7 @@ it("should hide server-only products from clients while exposing them to servers
                   ],
                 },
               },
+              "server_metadata": null,
               "server_only": true,
               "stackable": false,
             },
@@ -327,6 +333,8 @@ it("should allow granting stackable product with custom quantity", async ({ expe
           {
             "id": "stackable-plan",
             "product": {
+              "client_metadata": null,
+              "client_read_only_metadata": null,
               "customer_type": "user",
               "display_name": "Stackable Plan",
               "included_items": {},
@@ -339,6 +347,7 @@ it("should allow granting stackable product with custom quantity", async ({ expe
                   ],
                 },
               },
+              "server_metadata": null,
               "server_only": false,
               "stackable": true,
             },
@@ -372,7 +381,7 @@ it("should grant inline product without needing configuration", async ({ expect
           },
         },
         included_items: {},
-        metadata: {
+        server_metadata: {
           cohort: "beta",
           flags: ["inline-grant"],
         },
@@ -393,13 +402,11 @@ it("should grant inline product without needing configuration", async ({ expect
           {
             "id": null,
             "product": {
+              "client_metadata": null,
+              "client_read_only_metadata": null,
               "customer_type": "user",
               "display_name": "Inline Access",
               "included_items": {},
-              "metadata": {
-                "cohort": "beta",
-                "flags": ["inline-grant"],
-              },
               "prices": {
                 "quarterly": {
                   "USD": "2400",
@@ -409,6 +416,10 @@ it("should grant inline product without needing configuration", async ({ expect
                   ],
                 },
               },
+              "server_metadata": {
+                "cohort": "beta",
+                "flags": ["inline-grant"],
+              },
               "server_only": true,
               "stackable": false,
             },
@@ -693,6 +704,8 @@ it("listing products should list both subscription and one-time products", async
           {
             "id": "subscription-plan",
             "product": {
+              "client_metadata": null,
+              "client_read_only_metadata": null,
               "customer_type": "user",
               "display_name": "Subscription Plan",
               "included_items": {},
@@ -705,6 +718,7 @@ it("listing products should list both subscription and one-time products", async
                   ],
                 },
               },
+              "server_metadata": null,
               "server_only": false,
               "stackable": false,
             },
@@ -713,10 +727,13 @@ it("listing products should list both subscription and one-time products", async
           {
             "id": "lifetime-addon",
             "product": {
+              "client_metadata": null,
+              "client_read_only_metadata": null,
               "customer_type": "user",
               "display_name": "Lifetime Add-on",
               "included_items": {},
               "prices": { "lifetime": { "USD": "5000" } },
+              "server_metadata": null,
               "server_only": false,
               "stackable": false,
             },
@@ -821,6 +838,8 @@ it("listing products should support cursor pagination", async ({ expect }) => {
           {
             "id": "subscription-plan",
             "product": {
+              "client_metadata": null,
+              "client_read_only_metadata": null,
               "customer_type": "user",
               "display_name": "Subscription Plan",
               "included_items": {},
@@ -833,6 +852,7 @@ it("listing products should support cursor pagination", async ({ expect }) => {
                   ],
                 },
               },
+              "server_metadata": null,
               "server_only": false,
               "stackable": false,
             },
@@ -858,10 +878,13 @@ it("listing products should support cursor pagination", async ({ expect }) => {
           {
             "id": "lifetime-addon",
             "product": {
+              "client_metadata": null,
+              "client_read_only_metadata": null,
               "customer_type": "user",
               "display_name": "Lifetime Add-on",
               "included_items": {},
               "prices": { "lifetime": { "USD": "5000" } },
+              "server_metadata": null,
               "server_only": false,
               "stackable": false,
             },
@@ -870,10 +893,13 @@ it("listing products should support cursor pagination", async ({ expect }) => {
           {
             "id": "pro-addon",
             "product": {
+              "client_metadata": null,
+              "client_read_only_metadata": null,
               "customer_type": "user",
               "display_name": "Pro Add-on",
               "included_items": {},
               "prices": { "standard": { "USD": "7000" } },
+              "server_metadata": null,
               "server_only": false,
               "stackable": false,
             },
diff --git a/apps/e2e/tests/backend/endpoints/api/v1/payments/purchase-session.test.ts b/apps/e2e/tests/backend/endpoints/api/v1/payments/purchase-session.test.ts
index a97f96173..da776fef4 100644
--- a/apps/e2e/tests/backend/endpoints/api/v1/payments/purchase-session.test.ts
+++ b/apps/e2e/tests/backend/endpoints/api/v1/payments/purchase-session.test.ts
@@ -463,7 +463,7 @@ it("should list inline product metadata after completing test-mode purchase", as
           },
         },
         included_items: {},
-        metadata: {
+        server_metadata: {
           correlation_id: "inline-test-123",
           attributes: {
             seats: 5,
@@ -495,10 +495,10 @@ it("should list inline product metadata after completing test-mode purchase", as
   });
   expect(listResponse.status).toBe(200);
   const listBody = listResponse.body as {
-    items: Array<{ product: { metadata?: Record<string, unknown> } }>,
+    items: Array<{ product: { server_metadata?: Record<string, unknown> } }>,
   };
   expect(listBody.items).toHaveLength(1);
-  expect(listBody.items[0].product.metadata).toMatchInlineSnapshot(`
+  expect(listBody.items[0].product.server_metadata).toMatchInlineSnapshot(`
     {
       "attributes": {
         "seats": 5,
diff --git a/packages/stack-shared/src/schema-fields.ts b/packages/stack-shared/src/schema-fields.ts
index ec6970ad3..c2ed9d8e9 100644
--- a/packages/stack-shared/src/schema-fields.ts
+++ b/packages/stack-shared/src/schema-fields.ts
@@ -591,9 +591,17 @@ export const productSchema = yupObject({
   ),
 });
 
-const productMetadata = jsonSchema.optional().meta({ openapiField: { description: 'Optional metadata that Stack Auth will store and return with this product. Use this to attach custom data needed by your application.', exampleValue: { featureFlag: true, source: 'marketing-campaign' } } });
+const productMetadataExample = { featureFlag: true, source: 'marketing-campaign' } as const;
 
-export const productSchemaWithMetadata = productSchema.concat(yupObject({ metadata: productMetadata }));
+export const productClientMetadataSchema = jsonSchema.meta({ openapiField: { description: _clientMetaDataDescription('product'), exampleValue: productMetadataExample } });
+export const productClientReadOnlyMetadataSchema = jsonSchema.meta({ openapiField: { description: _clientReadOnlyMetaDataDescription('product'), exampleValue: productMetadataExample } });
+export const productServerMetadataSchema = jsonSchema.meta({ openapiField: { description: _serverMetaDataDescription('product'), exampleValue: productMetadataExample } });
+
+export const productSchemaWithMetadata = productSchema.concat(yupObject({
+  clientMetadata: productClientMetadataSchema.optional(),
+  clientReadOnlyMetadata: productClientReadOnlyMetadataSchema.optional(),
+  serverMetadata: productServerMetadataSchema.optional(),
+}));
 
 export const inlineProductSchema = yupObject({
   display_name: yupString().defined(),
@@ -617,7 +625,9 @@ export const inlineProductSchema = yupObject({
       expires: yupString().oneOf(['never', 'when-purchase-expires', 'when-repeated']).optional(),
     }),
   ),
-  metadata: productMetadata,
+  client_metadata: productClientMetadataSchema.optional(),
+  client_read_only_metadata: productClientReadOnlyMetadataSchema.optional(),
+  server_metadata: productServerMetadataSchema.optional(),
 });
 
 // Users