diff --git a/Cargo.lock b/Cargo.lock
index bf36ce53..6e27bf0b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -717,7 +717,7 @@ checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
 
 [[package]]
 name = "sentry_protos"
-version = "0.62.0"
+version = "0.62.1"
 dependencies = [
  "prost",
  "prost-types",
diff --git a/proto/sentry_protos/billing/v1/services/rate_card/v1/rate_card.proto b/proto/sentry_protos/billing/v1/services/rate_card/v1/rate_card.proto
index 8be03c83..4071a4e6 100644
--- a/proto/sentry_protos/billing/v1/services/rate_card/v1/rate_card.proto
+++ b/proto/sentry_protos/billing/v1/services/rate_card/v1/rate_card.proto
@@ -5,6 +5,13 @@ package sentry_protos.billing.v1.services.rate_card.v1;
 import "sentry_protos/billing/v1/common/v1/line_item_details.proto";
 import "sentry_protos/billing/v1/common/v1/pricing_tier.proto";
 
+message ProjectSpendAllocation {
+  uint64 project_id = 1;
+
+  // Reserved line-item units assigned exclusively to this project
+  uint64 quantity = 2;
+}
+
 message RateCardLineItem {
   sentry_protos.billing.v1.common.v1.LineItemDetails line_item_detail = 1;
 
@@ -20,6 +27,8 @@ message RateCardLineItem {
 
   // Whether this line item is currently enabled
   bool is_enabled = 7;
+
+  repeated ProjectSpendAllocation project_spend_allocations = 8;
 }
 
 message SharedRateCardLineItem {
diff --git a/proto/sentry_protos/billing/v1/services/usage_pricer/v1/endpoint_usage_pricer.proto b/proto/sentry_protos/billing/v1/services/usage_pricer/v1/endpoint_usage_pricer.proto
index bd61ff02..df91b269 100644
--- a/proto/sentry_protos/billing/v1/services/usage_pricer/v1/endpoint_usage_pricer.proto
+++ b/proto/sentry_protos/billing/v1/services/usage_pricer/v1/endpoint_usage_pricer.proto
@@ -85,6 +85,17 @@ message LineItemUsageSummary {
   bool has_remaining_capacity = 8;
 }
 
+message ProjectSpendAllocationSummary {
+  uint64 project_id = 1;
+  string line_item_uid = 2;
+
+  // Reserved units assigned exclusively to this project
+  uint64 allocated_quantity = 3;
+
+  // Amount of allocated quantity consumed by this project
+  uint64 consumed_quantity = 4;
+}
+
 message SharedLineItemUsageSummary {
   // Net cents consumed across all SKUs in this shared budget (after credits/trials applied).
   uint64 payg_spend_cents = 1;
@@ -114,4 +125,6 @@ message UsagePricerResponse {
   repeated SharedLineItemUsageSummary shared_line_item_summaries = 4;
 
   google.protobuf.Timestamp last_usage_ts = 5;
+
+  repeated ProjectSpendAllocationSummary project_spend_allocation_summaries = 6;
 }
diff --git a/rust/src/sentry_protos.billing.v1.services.rate_card.v1.rs b/rust/src/sentry_protos.billing.v1.services.rate_card.v1.rs
index a14f0f23..dd53053b 100644
--- a/rust/src/sentry_protos.billing.v1.services.rate_card.v1.rs
+++ b/rust/src/sentry_protos.billing.v1.services.rate_card.v1.rs
@@ -1,4 +1,12 @@
 // This file is @generated by prost-build.
+#[derive(Clone, Copy, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct ProjectSpendAllocation {
+    #[prost(uint64, tag = "1")]
+    pub project_id: u64,
+    /// Reserved line-item units assigned exclusively to this project
+    #[prost(uint64, tag = "2")]
+    pub quantity: u64,
+}
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct RateCardLineItem {
     #[prost(message, optional, tag = "1")]
@@ -20,6 +28,8 @@ pub struct RateCardLineItem {
     /// Whether this line item is currently enabled
     #[prost(bool, tag = "7")]
     pub is_enabled: bool,
+    #[prost(message, repeated, tag = "8")]
+    pub project_spend_allocations: ::prost::alloc::vec::Vec<ProjectSpendAllocation>,
     /// The following values are the effective values *after* contract overrides have been resolved. If there are no
     /// contract overrides, the default package values are used.
     #[prost(oneof = "rate_card_line_item::ReservedUnits", tags = "2, 3")]
diff --git a/rust/src/sentry_protos.billing.v1.services.usage_pricer.v1.rs b/rust/src/sentry_protos.billing.v1.services.usage_pricer.v1.rs
index 77ff2029..23de7ffb 100644
--- a/rust/src/sentry_protos.billing.v1.services.usage_pricer.v1.rs
+++ b/rust/src/sentry_protos.billing.v1.services.usage_pricer.v1.rs
@@ -141,6 +141,19 @@ pub struct LineItemUsageSummary {
     #[prost(bool, tag = "8")]
     pub has_remaining_capacity: bool,
 }
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct ProjectSpendAllocationSummary {
+    #[prost(uint64, tag = "1")]
+    pub project_id: u64,
+    #[prost(string, tag = "2")]
+    pub line_item_uid: ::prost::alloc::string::String,
+    /// Reserved units assigned exclusively to this project
+    #[prost(uint64, tag = "3")]
+    pub allocated_quantity: u64,
+    /// Amount of allocated quantity consumed by this project
+    #[prost(uint64, tag = "4")]
+    pub consumed_quantity: u64,
+}
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct SharedLineItemUsageSummary {
     /// Net cents consumed across all SKUs in this shared budget (after credits/trials applied).
@@ -175,4 +188,8 @@ pub struct UsagePricerResponse {
     pub shared_line_item_summaries: ::prost::alloc::vec::Vec<SharedLineItemUsageSummary>,
     #[prost(message, optional, tag = "5")]
     pub last_usage_ts: ::core::option::Option<::prost_types::Timestamp>,
+    #[prost(message, repeated, tag = "6")]
+    pub project_spend_allocation_summaries: ::prost::alloc::vec::Vec<
+        ProjectSpendAllocationSummary,
+    >,
 }