diff --git a/apps/server/src/provider/claudeUsageLimits.test.ts b/apps/server/src/provider/claudeUsageLimits.test.ts
index f20d8b0543636..b683c80f4f5e8 100644
--- a/apps/server/src/provider/claudeUsageLimits.test.ts
+++ b/apps/server/src/provider/claudeUsageLimits.test.ts
@@ -199,6 +199,22 @@ describe("claudeUsageResponseToLimits", () => {
     ).toEqual([monthlyWindow]);
   });
 
+  it("flags a $0 cap instead of reporting a monthly window", () => {
+    const response = {
+      rate_limits_available: true,
+      rate_limits: {
+        five_hour: null,
+        seven_day: null,
+        extra_usage: { is_enabled: true, used_credits: 0, monthly_limit: 0, utilization: null },
+      },
+    };
+    expect(claudeUsageResponseToLimits({ checkedAt, response }).limits).toEqual({
+      checkedAt,
+      windows: [],
+      zeroSpendCap: true,
+    });
+  });
+
   it("omits disabled budgets and refuses invalid money without an enabled fallback", () => {
     const rateLimits = enterpriseResponse.rate_limits;
     const response = {
diff --git a/apps/server/src/provider/claudeUsageLimits.ts b/apps/server/src/provider/claudeUsageLimits.ts
index d0acf43bb4968..8f81f2e7c7ef3 100644
--- a/apps/server/src/provider/claudeUsageLimits.ts
+++ b/apps/server/src/provider/claudeUsageLimits.ts
@@ -202,6 +202,7 @@ export function claudeUsageResponseToLimits(input: {
     overageIncluded ??= entry.display_name;
   }
   const spendPercent = readSpendPercent(response.rate_limits);
+  const extra = response.rate_limits.extra_usage;
   if (spendPercent !== undefined) {
     windows.push({
       id: "monthly_spend",
@@ -211,7 +212,10 @@ export function claudeUsageResponseToLimits(input: {
     });
   }
   return {
-    limits: makeUsageLimits({ checkedAt, windows }),
+    limits: {
+      ...makeUsageLimits({ checkedAt, windows }),
+      ...(extra?.is_enabled && extra.monthly_limit === 0 ? { zeroSpendCap: true } : {}),
+    },
     names: { overageIncluded },
   };
 }
diff --git a/apps/web/src/components/usage/UsageLimitsPooled.tsx b/apps/web/src/components/usage/UsageLimitsPooled.tsx
index d5f46398fa31c..8ec1c7a02afcd 100644
--- a/apps/web/src/components/usage/UsageLimitsPooled.tsx
+++ b/apps/web/src/components/usage/UsageLimitsPooled.tsx
@@ -523,6 +523,18 @@ function PoolBar({
               index={position + 1}
               showAccountName={pool.columns.length > 1}
             />
+          ) : pool.kind === "monthly" && member.account.limits.zeroSpendCap ? (
+            <div
+              key={member.account.key}
+              style={{ gridColumn: position + 1, gridRow: 1 }}
+              className="flex h-5 min-w-0 items-center justify-center gap-1.5 overflow-hidden rounded-md border border-dashed border-border text-3xs whitespace-nowrap text-muted-foreground @2xl/pool:h-8 @2xl/pool:justify-start @2xl/pool:px-2 @2xl/pool:text-xs"
+            >
+              <AccountName
+                account={member.account}
+                className="hidden min-w-0 truncate @2xl/pool:inline-flex"
+              />
+              $0 cap
+            </div>
           ) : null,
         )}
       </div>
diff --git a/packages/contracts/src/providerUsageLimits.ts b/packages/contracts/src/providerUsageLimits.ts
index 67acbe0d35b05..c3b871e996bf4 100644
--- a/packages/contracts/src/providerUsageLimits.ts
+++ b/packages/contracts/src/providerUsageLimits.ts
@@ -44,6 +44,8 @@ export type ServerProviderResetCredits = typeof ServerProviderResetCredits.Type;
 export const ServerProviderUsageLimits = Schema.Struct({
   checkedAt: IsoDateTime,
   windows: ForwardCompatibleArray(ServerProviderUsageWindow),
+  /** A $0 monthly spend cap has no percentage, so it cannot be a window. */
+  zeroSpendCap: Schema.optional(Schema.Boolean),
   credentialFingerprint: Schema.optional(TrimmedNonEmptyString),
   resetCredits: Schema.optional(ServerProviderResetCredits),
   externalUsage: Schema.optional(
diff --git a/packages/provider-core/src/server/usageLimits.test.ts b/packages/provider-core/src/server/usageLimits.test.ts
index 4b9c1b39c862b..6e2c1a18f0b62 100644
--- a/packages/provider-core/src/server/usageLimits.test.ts
+++ b/packages/provider-core/src/server/usageLimits.test.ts
@@ -66,10 +66,10 @@ describe("applyUsageLimitsUpdate", () => {
     ).toEqual({ checkedAt, windows: [weekly], unavailable: { reason: "probeFailed" } });
   });
 
-  it("preserves reset credits when a streamed window update changes usage", () => {
+  it("preserves reset credits and a $0 cap when a streamed window update changes usage", () => {
     const resetCredits = { availableCount: 2, nextExpiresAt: "2026-10-01T00:00:00.000Z" };
     const next = applyUsageLimitsUpdate({
-      previous: { ...published, resetCredits },
+      previous: { ...published, resetCredits, zeroSpendCap: true },
       checkedAt: "2026-09-03T12:00:05.000Z",
       update: { windows: [{ ...session, usedPercent: 55 }] },
     });
@@ -78,6 +78,7 @@ describe("applyUsageLimitsUpdate", () => {
       checkedAt: "2026-09-03T12:00:05.000Z",
       windows: [{ ...session, usedPercent: 55 }, weekly],
       resetCredits,
+      zeroSpendCap: true,
     });
   });
 });
diff --git a/packages/provider-core/src/server/usageLimits.ts b/packages/provider-core/src/server/usageLimits.ts
index 1e4bcd0090854..b8ff4edff10f7 100644
--- a/packages/provider-core/src/server/usageLimits.ts
+++ b/packages/provider-core/src/server/usageLimits.ts
@@ -84,6 +84,7 @@ export function applyUsageLimitsUpdate(input: {
   return {
     ...makeUsageLimits({ checkedAt: input.checkedAt, windows: merged.values() }),
     ...(previous?.resetCredits !== undefined ? { resetCredits: previous.resetCredits } : {}),
+    ...(previous?.zeroSpendCap ? { zeroSpendCap: true } : {}),
     ...(unavailable !== undefined ? { unavailable } : {}),
   };
 }