feat(ai): report Cursor account usage

Expose Cursor OAuth and access-token quota reporting through the shared usage APIs and CLI views, with parser and presentation coverage.

packages/ai/CHANGELOG.md

@@ -6,6 +6,7 @@
 
 - Added asynchronous `invalidateUsageCache` method to clear cached usage reports
 - Added support for cross-service usage cache invalidation between AuthStorage and AuthBroker
+- Added Cursor OAuth and access-token usage reporting to `omp usage` via Cursor's account usage endpoint.
 
 ### Fixed
 

packages/ai/src/auth-storage.ts

@@ -42,6 +42,7 @@ import type {
 } from "./usage";
 import { resolveUsedFraction } from "./usage";
 import { claudeRankingStrategy, claudeUsageProvider } from "./usage/claude";
+import { cursorUsageProvider } from "./usage/cursor";
 import { googleGeminiCliUsageProvider } from "./usage/gemini";
 import { githubCopilotUsageProvider } from "./usage/github-copilot";
 import { antigravityRankingStrategy, antigravityUsageProvider } from "./usage/google-antigravity";
@@ -566,6 +567,7 @@ const DEFAULT_USAGE_PROVIDERS: UsageProvider[] = [
 	zaiUsageProvider,
 	opencodeGoUsageProvider,
 	githubCopilotUsageProvider,
+	cursorUsageProvider,
 ];
 
 const DEFAULT_USAGE_PROVIDER_MAP = new Map<Provider, UsageProvider>(

packages/ai/src/index.ts

@@ -29,6 +29,7 @@ export * from "./stream";
 export * from "./types";
 export * from "./usage";
 export * from "./usage/claude";
+export * from "./usage/cursor";
 export * from "./usage/gemini";
 export * from "./usage/github-copilot";
 export * from "./usage/google-antigravity";

packages/ai/src/usage/cursor.ts

@@ -0,0 +1,192 @@
+import type {
+	UsageAmount,
+	UsageFetchContext,
+	UsageFetchParams,
+	UsageLimit,
+	UsageProvider,
+	UsageReport,
+	UsageStatus,
+	UsageWindow,
+} from "../usage";
+import { toNumber } from "./shared";
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+	return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function parseTimestamp(value: unknown): number | undefined {
+	const numeric = toNumber(value);
+	if (numeric !== undefined) return numeric < 1_000_000_000_000 ? numeric * 1000 : numeric;
+	if (typeof value !== "string" || !value.trim()) return undefined;
+	const parsed = Date.parse(value);
+	return Number.isFinite(parsed) ? parsed : undefined;
+}
+
+function normalizeCursorBaseUrl(baseUrl?: string): string {
+	if (!baseUrl) return "https://api2.cursor.sh";
+	return baseUrl.replace(/\/+$/, "");
+}
+
+function deriveResetsAt(payload: Record<string, unknown>): number | undefined {
+	const endKeys = ["billingCycleEnd", "endOfMonth", "resetsAt", "nextReset"];
+	for (const key of endKeys) {
+		const parsed = parseTimestamp(payload[key]);
+		if (parsed !== undefined) return parsed;
+	}
+
+	const startKeys = ["startOfMonth", "billingCycleStart", "startOfBillingCycle"];
+	for (const key of startKeys) {
+		const parsed = parseTimestamp(payload[key]);
+		if (parsed !== undefined) {
+			const date = new Date(parsed);
+			date.setUTCMonth(date.getUTCMonth() + 1);
+			return date.getTime();
+		}
+	}
+	return undefined;
+}
+
+export function parseCursorUsage(payload: unknown, fetchedAt = Date.now()): UsageReport | null {
+	if (!isRecord(payload)) return null;
+	const limits: UsageLimit[] = [];
+	const resetsAt = deriveResetsAt(payload);
+
+	const window: UsageWindow = {
+		id: "monthly",
+		label: "Monthly",
+		...(resetsAt !== undefined ? { resetsAt } : {}),
+	};
+
+	for (const [key, value] of Object.entries(payload)) {
+		if (!isRecord(value)) continue;
+
+		// used can be: numRequests, used, amountUsed, usdUsed
+		const usedVal =
+			toNumber(value.numRequests) ?? toNumber(value.used) ?? toNumber(value.amountUsed) ?? toNumber(value.usdUsed);
+
+		// limit can be: maxRequestUsage, limit, amountLimit, usdLimit
+		const limitVal =
+			toNumber(value.maxRequestUsage) ??
+			toNumber(value.limit) ??
+			toNumber(value.amountLimit) ??
+			toNumber(value.usdLimit);
+
+		if (usedVal !== undefined && limitVal !== undefined) {
+			const isUsd =
+				key === "planUsage" ||
+				key.toLowerCase().includes("usd") ||
+				key.toLowerCase().includes("billing") ||
+				key.toLowerCase().includes("stripe");
+
+			const unit = isUsd ? "usd" : "requests";
+			const cleanBucket = key.toLowerCase().trim();
+			const limitId = isUsd ? `cursor:usd:${cleanBucket}` : `cursor:requests:${cleanBucket}`;
+
+			const label = isUsd ? `${key} spend` : `${key} requests`;
+
+			const amount: UsageAmount = {
+				used: usedVal,
+				limit: limitVal,
+				remaining: Math.max(0, limitVal - usedVal),
+				usedFraction: limitVal > 0 ? usedVal / limitVal : 0,
+				remainingFraction: limitVal > 0 ? Math.max(0, limitVal - usedVal) / limitVal : 0,
+				unit,
+			};
+
+			const usedFraction = amount.usedFraction;
+			let status: UsageStatus = "unknown";
+			if (usedFraction !== undefined) {
+				if (usedFraction >= 1) {
+					status = "exhausted";
+				} else if (usedFraction >= 0.9) {
+					status = "warning";
+				} else {
+					status = "ok";
+				}
+			}
+
+			limits.push({
+				id: limitId,
+				label,
+				scope: {
+					provider: "cursor",
+					...(window ? { windowId: window.id } : {}),
+				},
+				...(window ? { window } : {}),
+				amount,
+				status,
+			});
+		}
+	}
+
+	if (limits.length === 0) {
+		return null;
+	}
+
+	return {
+		provider: "cursor",
+		fetchedAt,
+		limits,
+		raw: payload,
+	};
+}
+
+export const cursorUsageProvider: UsageProvider = {
+	id: "cursor",
+	supports(params: UsageFetchParams): boolean {
+		if (params.provider !== "cursor") return false;
+		const { credential } = params;
+		if (credential.type === "oauth") {
+			return Boolean(credential.accessToken);
+		}
+		if (credential.type === "api_key") {
+			return Boolean(credential.apiKey);
+		}
+		return false;
+	},
+	async fetchUsage(params: UsageFetchParams, ctx: UsageFetchContext): Promise<UsageReport | null> {
+		if (params.provider !== "cursor") return null;
+		const { credential } = params;
+		const token = credential.type === "oauth" ? credential.accessToken : credential.apiKey;
+		if (!token) return null;
+
+		const baseUrl = normalizeCursorBaseUrl(params.baseUrl ?? credential.apiEndpoint);
+		const url = `${baseUrl}/auth/usage`;
+
+		const headers: Record<string, string> = {
+			Accept: "application/json",
+			Authorization: `Bearer ${token}`,
+		};
+
+		try {
+			const response = await ctx.fetch(url, {
+				headers,
+				signal: params.signal,
+			});
+			if (!response.ok) {
+				ctx.logger?.warn("Cursor usage request failed", {
+					status: response.status,
+					provider: params.provider,
+				});
+				return null;
+			}
+			const payload = await response.json();
+			const report = parseCursorUsage(payload);
+			if (report) {
+				const metadata = {
+					...(credential.email ? { email: credential.email } : {}),
+					...(credential.accountId ? { accountId: credential.accountId } : {}),
+					...(credential.projectId ? { projectId: credential.projectId } : {}),
+				};
+				if (Object.keys(metadata).length > 0) report.metadata = metadata;
+			}
+			return report;
+		} catch (error) {
+			ctx.logger?.warn("Cursor usage request error", {
+				provider: params.provider,
+				error: String(error),
+			});
+			return null;
+		}
+	},
+};

packages/ai/test/cursor-usage.test.ts

@@ -0,0 +1,284 @@
+import { describe, expect, it } from "bun:test";
+import type { UsageFetchContext, UsageFetchParams } from "../src/usage";
+import { cursorUsageProvider, parseCursorUsage } from "../src/usage/cursor";
+
+describe("cursor usage provider", () => {
+	describe("parseCursorUsage", () => {
+		it("returns null for non-record payloads", () => {
+			expect(parseCursorUsage(null)).toBeNull();
+			expect(parseCursorUsage(undefined)).toBeNull();
+			expect(parseCursorUsage("invalid")).toBeNull();
+			expect(parseCursorUsage([])).toBeNull();
+		});
+
+		it("returns null when no recognized quotas are present", () => {
+			const payload = {
+				someOtherField: "hello",
+				startOfMonth: "2026-07-01T00:00:00.000Z",
+			};
+			expect(parseCursorUsage(payload)).toBeNull();
+		});
+
+		it("parses request-count buckets with stable IDs and labels", () => {
+			const payload = {
+				"gpt-4": {
+					numRequests: 150,
+					maxRequestUsage: 500,
+				},
+				"claude-3-5-sonnet": {
+					used: 80,
+					limit: 100,
+				},
+				startOfMonth: "2026-07-01T00:00:00.000Z",
+			};
+
+			const report = parseCursorUsage(payload);
+			expect(report).not.toBeNull();
+			if (!report) return;
+
+			expect(report.provider).toBe("cursor");
+			expect(report.limits).toHaveLength(2);
+
+			const gpt4Limit = report.limits.find(l => l.id === "cursor:requests:gpt-4");
+			expect(gpt4Limit).toBeDefined();
+			if (gpt4Limit) {
+				expect(gpt4Limit.label).toBe("gpt-4 requests");
+				expect(gpt4Limit.amount.used).toBe(150);
+				expect(gpt4Limit.amount.limit).toBe(500);
+				expect(gpt4Limit.amount.remaining).toBe(350);
+				expect(gpt4Limit.amount.usedFraction).toBe(0.3);
+				expect(gpt4Limit.amount.unit).toBe("requests");
+				expect(gpt4Limit.status).toBe("ok");
+				expect(gpt4Limit.window).toBeDefined();
+				expect(gpt4Limit.window?.id).toBe("monthly");
+				expect(gpt4Limit.window?.label).toBe("Monthly");
+				// 2026-07-01 + 1 month = 2026-08-01
+				expect(gpt4Limit.window?.resetsAt).toBe(Date.parse("2026-08-01T00:00:00.000Z"));
+			}
+
+			const sonnetLimit = report.limits.find(l => l.id === "cursor:requests:claude-3-5-sonnet");
+			expect(sonnetLimit).toBeDefined();
+			if (sonnetLimit) {
+				expect(sonnetLimit.label).toBe("claude-3-5-sonnet requests");
+				expect(sonnetLimit.amount.used).toBe(80);
+				expect(sonnetLimit.amount.limit).toBe(100);
+				expect(sonnetLimit.amount.usedFraction).toBe(0.8);
+				expect(sonnetLimit.status).toBe("ok");
+			}
+		});
+
+		it("parses USD/billing plan buckets with stable IDs and labels", () => {
+			const payload = {
+				planUsage: {
+					used: 15.5,
+					limit: 20.0,
+				},
+				"usd-custom": {
+					amountUsed: 45,
+					amountLimit: 50,
+				},
+			};
+
+			const report = parseCursorUsage(payload);
+			expect(report).not.toBeNull();
+			if (!report) return;
+
+			expect(report.limits).toHaveLength(2);
+
+			const planLimit = report.limits.find(l => l.id === "cursor:usd:planusage");
+			expect(planLimit).toBeDefined();
+			if (planLimit) {
+				expect(planLimit.label).toBe("planUsage spend");
+				expect(planLimit.amount.used).toBe(15.5);
+				expect(planLimit.amount.limit).toBe(20.0);
+				expect(planLimit.amount.unit).toBe("usd");
+				expect(planLimit.status).toBe("ok");
+			}
+
+			const customLimit = report.limits.find(l => l.id === "cursor:usd:usd-custom");
+			expect(customLimit).toBeDefined();
+			if (customLimit) {
+				expect(customLimit.label).toBe("usd-custom spend");
+				expect(customLimit.amount.used).toBe(45);
+				expect(customLimit.amount.limit).toBe(50);
+				expect(customLimit.amount.unit).toBe("usd");
+				// 45 / 50 = 0.9 -> warning status
+				expect(customLimit.status).toBe("warning");
+			}
+		});
+
+		it("derives resetsAt from startOfMonth", () => {
+			const payload = {
+				"gpt-4": {
+					numRequests: 10,
+					maxRequestUsage: 10,
+				},
+				startOfMonth: "2026-07-11T12:00:00.000Z",
+			};
+			const report = parseCursorUsage(payload);
+			expect(report).not.toBeNull();
+			const limit = report?.limits[0];
+			expect(limit?.window?.resetsAt).toBe(Date.parse("2026-08-11T12:00:00.000Z"));
+		});
+
+		it("derives resetsAt directly from billingCycleEnd", () => {
+			const payload = {
+				"gpt-4": {
+					numRequests: 10,
+					maxRequestUsage: 10,
+				},
+				billingCycleEnd: "2026-07-20T00:00:00.000Z",
+			};
+			const report = parseCursorUsage(payload);
+			expect(report).not.toBeNull();
+			const limit = report?.limits[0];
+			expect(limit?.window?.resetsAt).toBe(Date.parse("2026-07-20T00:00:00.000Z"));
+		});
+	});
+
+	describe("cursorUsageProvider", () => {
+		it("supports oauth credentials", () => {
+			const params: UsageFetchParams = {
+				provider: "cursor",
+				credential: {
+					type: "oauth",
+					accessToken: "valid-token",
+				},
+			};
+			expect(cursorUsageProvider.supports?.(params)).toBe(true);
+		});
+
+		it("supports api_key credentials", () => {
+			const params: UsageFetchParams = {
+				provider: "cursor",
+				credential: {
+					type: "api_key",
+					apiKey: "valid-api-key",
+				},
+			};
+			expect(cursorUsageProvider.supports?.(params)).toBe(true);
+		});
+
+		it("does not support missing token/key", () => {
+			const params1: UsageFetchParams = {
+				provider: "cursor",
+				credential: {
+					type: "oauth",
+				},
+			};
+			const params2: UsageFetchParams = {
+				provider: "cursor",
+				credential: {
+					type: "api_key",
+				},
+			};
+			expect(cursorUsageProvider.supports?.(params1)).toBe(false);
+			expect(cursorUsageProvider.supports?.(params2)).toBe(false);
+		});
+
+		it("does not support other providers", () => {
+			const params: UsageFetchParams = {
+				provider: "openai-codex",
+				credential: {
+					type: "oauth",
+					accessToken: "token",
+				},
+			};
+			expect(cursorUsageProvider.supports?.(params)).toBe(false);
+		});
+
+		it("fetches and parses usage successfully", async () => {
+			const payload = {
+				"gpt-4": {
+					numRequests: 10,
+					maxRequestUsage: 100,
+				},
+				startOfMonth: "2026-07-01T00:00:00.000Z",
+			};
+
+			const mockFetch = (async (input: string | URL, init?: RequestInit): Promise<Response> => {
+				const urlStr = typeof input === "string" ? input : input.toString();
+				expect(urlStr).toBe("https://api2.cursor.sh/auth/usage");
+				expect(init?.headers).toBeDefined();
+				const headers = init?.headers as Record<string, string>;
+				expect(headers.Accept).toBe("application/json");
+				expect(headers.Authorization).toBe("Bearer test-token");
+
+				return new Response(JSON.stringify(payload), {
+					status: 200,
+					headers: { "Content-Type": "application/json" },
+				});
+			}) as unknown as typeof fetch;
+
+			const ctx: UsageFetchContext = {
+				fetch: mockFetch,
+			};
+
+			const report = await cursorUsageProvider.fetchUsage(
+				{
+					provider: "cursor",
+					credential: {
+						type: "oauth",
+						accessToken: "test-token",
+						email: "user@example.com",
+						accountId: "acc_123",
+					},
+				},
+				ctx,
+			);
+
+			expect(report).not.toBeNull();
+			if (!report) return;
+
+			expect(report.provider).toBe("cursor");
+			expect(report.limits).toHaveLength(1);
+			expect(report.limits[0].id).toBe("cursor:requests:gpt-4");
+			expect(report.metadata).toEqual({
+				email: "user@example.com",
+				accountId: "acc_123",
+			});
+		});
+
+		it("returns null on non-2xx response", async () => {
+			const mockFetch = (async () => new Response("Error", { status: 403 })) as unknown as typeof fetch;
+			const ctx: UsageFetchContext = {
+				fetch: mockFetch,
+			};
+
+			const report = await cursorUsageProvider.fetchUsage(
+				{
+					provider: "cursor",
+					credential: {
+						type: "oauth",
+						accessToken: "test-token",
+					},
+				},
+				ctx,
+			);
+
+			expect(report).toBeNull();
+		});
+
+		it("returns null on fetch error", async () => {
+			const mockFetch = (async () => {
+				throw new Error("Network error");
+			}) as unknown as typeof fetch;
+			const ctx: UsageFetchContext = {
+				fetch: mockFetch,
+			};
+
+			const report = await cursorUsageProvider.fetchUsage(
+				{
+					provider: "cursor",
+					credential: {
+						type: "oauth",
+						accessToken: "test-token",
+					},
+				},
+				ctx,
+			);
+
+			expect(report).toBeNull();
+		});
+	});
+});

packages/coding-agent/test/modes/controllers/usage-command.test.ts

@@ -66,6 +66,54 @@ describe("CommandController /usage", () => {
 		expect(output).not.toContain("··········");
 	});
 
+	it("renders Cursor request quotas in the /usage view", async () => {
+		const present = vi.fn();
+		const ctx = {
+			session: {},
+			ui: { terminal: { columns: 100 } },
+			present,
+			showWarning: vi.fn(),
+			showError: vi.fn(),
+		} as unknown as InteractiveModeContext;
+		const controller = new CommandController(ctx);
+		const now = Date.now();
+		const reports: UsageReport[] = [
+			{
+				provider: "cursor",
+				fetchedAt: now,
+				limits: [
+					{
+						id: "cursor:requests:gpt-4",
+						label: "gpt-4 requests",
+						scope: { provider: "cursor", windowId: "monthly" },
+						window: { id: "monthly", label: "Monthly", resetsAt: now + 86_400_000 },
+						amount: {
+							unit: "requests",
+							used: 150,
+							limit: 500,
+							remaining: 350,
+							usedFraction: 0.3,
+							remainingFraction: 0.7,
+						},
+						status: "ok",
+					},
+				],
+				metadata: { email: "cursor@example.test" },
+			},
+		];
+
+		await controller.handleUsageCommand(reports);
+
+		expect(present).toHaveBeenCalledTimes(1);
+		const firstCall = present.mock.calls[0];
+		expect(firstCall).toBeDefined();
+		const output = renderPresentedBlocks(firstCall?.[0]);
+		expect(output).toContain("Cursor");
+		expect(output).toContain("gpt-4 requests");
+		expect(output).toContain("70% free");
+		expect(output).toContain("resets in 1d");
+	});
+
 	it("renders saved reset expiry lines for future and expired credits", async () => {
 		const present = vi.fn();
 		const ctx = {

packages/coding-agent/test/usage-cli.test.ts

@@ -279,6 +279,44 @@ describe("formatUsageBreakdown", () => {
 		expect(text).toContain("0.40× quota left");
 	});
 
+	it("renders Cursor request quotas in the usage breakdown", () => {
+		const now = Date.parse("2026-01-01T00:00:00.000Z");
+		const reports: UsageReport[] = [
+			{
+				provider: "cursor",
+				fetchedAt: now,
+				metadata: { email: "cursor@example.test" },
+				limits: [
+					{
+						id: "cursor:requests:gpt-4",
+						label: "gpt-4 requests",
+						scope: { provider: "cursor", windowId: "monthly" },
+						window: {
+							id: "monthly",
+							label: "Monthly",
+							resetsAt: Date.parse("2026-02-01T00:00:00.000Z"),
+						},
+						amount: {
+							unit: "requests",
+							used: 150,
+							limit: 500,
+							remaining: 350,
+							usedFraction: 0.3,
+							remainingFraction: 0.7,
+						},
+						status: "ok",
+					},
+				],
+			},
+		];
+
+		const text = stripVTControlCharacters(formatUsageBreakdown(reports, [], now));
+		expect(text).toContain("Cursor");
+		expect(text).toContain("gpt-4 requests");
+		expect(text).toContain("150 / 500 requests");
+		expect(text).toContain("30.0% used");
+		expect(text).toContain("resets in 31d");
+	});
 	it("renders saved reset expiry state for future and expired credits", () => {
 		const now = Date.parse("2026-01-01T00:00:00.000Z");
 		const reports: UsageReport[] = [