diff --git a/open-sse/providers/registry/orbit-provider.js b/open-sse/providers/registry/orbit-provider.js
index 0c7ffbfe..3dee2191 100644
--- a/open-sse/providers/registry/orbit-provider.js
+++ b/open-sse/providers/registry/orbit-provider.js
@@ -16,6 +16,9 @@ export default {
     headers: {
       "anthropic-version": "2023-06-01",
     },
+    usage: {
+      url: "https://api.orbit-provider.com/v1/usage",
+    },
   },
   models: [
     { id: "claude-opus-4-8", name: "Claude Opus 4.8" },
@@ -24,6 +27,10 @@ export default {
     { id: "claude-opus-4-6-thinking", name: "Claude Opus 4.6 (Thinking)" },
   ],
   serviceKinds: ["llm"],
+  features: {
+    usage: true,
+    usageApikey: true,
+  },
   thinkingConfig: {
     options: ["auto", "on", "off"],
     defaultMode: "auto",
diff --git a/open-sse/services/usage.js b/open-sse/services/usage.js
index dabe53e0..fe51115f 100644
--- a/open-sse/services/usage.js
+++ b/open-sse/services/usage.js
@@ -12,6 +12,7 @@ import { getKiroUsage } from "./usage/kiro.js";
 import { getMiniMaxUsage } from "./usage/minimax.js";
 import { getCodeBuddyCnUsage } from "./usage/codebuddy-cn.js";
 import { getGrokCliUsage } from "./usage/grok-cli.js";
+import { getOrbitUsage } from "./usage/orbit.js";
 import {
   getQwenUsage,
   getIflowUsage,
@@ -45,6 +46,7 @@ const USAGE_HANDLERS = {
   "vercel-ai-gateway": (c) => getVercelAiGatewayUsage(c.apiKey, c.proxyOptions),
   "codebuddy-cn": (c) => getCodeBuddyCnUsage(c.accessToken, c.apiKey, c.providerSpecificData, c.proxyOptions),
   "grok-cli": (c) => getGrokCliUsage(c.accessToken, c.providerSpecificData, c.proxyOptions),
+  "orbit-provider": (c) => getOrbitUsage(c.apiKey, c.proxyOptions),
 };
 
 export async function getUsageForProvider(connection, proxyOptions = null) {
diff --git a/open-sse/services/usage/orbit.js b/open-sse/services/usage/orbit.js
new file mode 100644
index 00000000..18921b69
--- /dev/null
+++ b/open-sse/services/usage/orbit.js
@@ -0,0 +1,118 @@
+/**
+ * Orbit Provider usage handler.
+ */
+
+import { proxyAwareFetch } from "../../utils/proxyFetch.js";
+import { U, parseResetTime, toFiniteNumber } from "./shared.js";
+
+const ORBIT_USAGE_URL = U("orbit-provider").url;
+
+function clampPercentage(value) {
+  return Math.min(100, Math.max(0, value));
+}
+
+function getRemainingPercentage(used, total, upstreamUsagePercent) {
+  if (total <= 0) return 0;
+  const usagePercent = Number.isFinite(Number(upstreamUsagePercent))
+    ? toFiniteNumber(upstreamUsagePercent)
+    : (used / total) * 100;
+  return clampPercentage(100 - usagePercent);
+}
+
+/**
+ * Normalize Orbit's usage response into quota rows consumed by the dashboard.
+ * @param {object} responseBody Orbit API response.
+ * @returns {object} Normalized provider usage.
+ */
+export function parseOrbitUsage(responseBody) {
+  if (responseBody?.success !== true || !responseBody?.data || typeof responseBody.data !== "object") {
+    return { message: "Orbit Provider usage response was invalid." };
+  }
+
+  const data = responseBody.data;
+  const used = Math.max(0, toFiniteNumber(data.tokensUsed));
+  const total = Math.max(0, toFiniteNumber(data.tokenLimit));
+  const upstreamRemaining = Math.max(0, toFiniteNumber(data.tokensRemaining, Math.max(0, total - used)));
+  const remaining = data.isExhausted === true ? 0 : Math.min(total, upstreamRemaining);
+  const remainingPercentage = data.isExhausted === true
+    ? 0
+    : getRemainingPercentage(used, total, data.usagePercent);
+  const resetPeriod = typeof data.resetPeriod === "string" && data.resetPeriod.trim()
+    ? data.resetPeriod.trim().toLowerCase()
+    : "period";
+  const resetAt = parseResetTime(data.periodEnd);
+  const quotas = {
+    [`Tokens (${resetPeriod})`]: {
+      used,
+      total,
+      remaining,
+      remainingPercentage,
+      resetAt,
+      unlimited: false,
+    },
+  };
+
+  const credit = data.credit;
+  if (credit && typeof credit === "object") {
+    const balance = Math.max(0, toFiniteNumber(credit.balanceUsd));
+    const granted = Math.max(0, toFiniteNumber(credit.grantedUsd));
+    const spent = Math.max(0, toFiniteNumber(credit.spentUsd));
+    const creditTotal = granted > 0 ? granted : balance + spent;
+    const creditRemainingPercentage = creditTotal > 0
+      ? clampPercentage((balance / creditTotal) * 100)
+      : 0;
+
+    quotas["Credit (USD)"] = {
+      used: spent,
+      total: creditTotal,
+      remaining: balance,
+      remainingPercentage: creditRemainingPercentage,
+      resetAt: null,
+      unlimited: false,
+    };
+  }
+
+  return {
+    plan: typeof data.plan === "string" && data.plan.trim() ? data.plan.trim() : "Unknown",
+    quotas,
+    isExhausted: data.isExhausted === true,
+    resetPeriod,
+  };
+}
+
+/**
+ * Fetch usage for an Orbit Provider API-key connection.
+ * @param {string} apiKey Orbit API key.
+ * @param {object|null} proxyOptions Connection proxy configuration.
+ * @returns {Promise<object>} Normalized usage data.
+ */
+export async function getOrbitUsage(apiKey, proxyOptions = null) {
+  if (!apiKey) {
+    return { message: "Orbit Provider API key not available." };
+  }
+
+  try {
+    const response = await proxyAwareFetch(ORBIT_USAGE_URL, {
+      method: "GET",
+      headers: {
+        Authorization: `Bearer ${apiKey}`,
+        Accept: "application/json",
+      },
+    }, proxyOptions);
+
+    if (response.status === 401 || response.status === 403) {
+      return { message: "Orbit Provider API key invalid or expired." };
+    }
+
+    if (!response.ok) {
+      const errorText = await response.text().catch(() => "");
+      const detail = errorText ? `: ${errorText.slice(0, 200)}` : "";
+      return { message: `Orbit Provider usage API error (${response.status})${detail}` };
+    }
+
+    const body = await response.json().catch(() => null);
+    return parseOrbitUsage(body);
+  } catch (error) {
+    return { message: `Orbit Provider usage error: ${error.message}` };
+  }
+}
diff --git a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/utils.js b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/utils.js
index 7befe9fb..f338073f 100644
--- a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/utils.js
+++ b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/utils.js
@@ -492,6 +492,24 @@ export function parseQuotaData(provider, data) {
         }
         break;
 
+      case "orbit-provider":
+        // Orbit exposes both token usage and USD credit balance, but only the
+        // credit balance is useful in the quota dashboard. Keep token usage
+        // in the server response for diagnostics without rendering its row.
+        if (data.quotas) {
+          Object.entries(data.quotas).forEach(([name, quota]) => {
+            if (name !== "Credit (USD)") return;
+            normalizedQuotas.push({
+              name,
+              used: quota.used || 0,
+              total: quota.total || 0,
+              resetAt: quota.resetAt || null,
+              remainingPercentage: quota.remainingPercentage,
+            });
+          });
+        }
+        break;
+
       default:
         // Generic fallback for unknown providers
         if (data.quotas) {
diff --git a/tests/unit/orbit-usage.test.js b/tests/unit/orbit-usage.test.js
new file mode 100644
index 00000000..5c2c58ec
--- /dev/null
+++ b/tests/unit/orbit-usage.test.js
@@ -0,0 +1,142 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+vi.mock("../../open-sse/utils/proxyFetch.js", () => ({
+  proxyAwareFetch: vi.fn(),
+}));
+
+import { proxyAwareFetch } from "../../open-sse/utils/proxyFetch.js";
+import { getUsageForProvider } from "../../open-sse/services/usage.js";
+import { parseOrbitUsage } from "../../open-sse/services/usage/orbit.js";
+import { PROVIDERS } from "../../open-sse/providers/index.js";
+import { USAGE_APIKEY_PROVIDERS, USAGE_SUPPORTED_PROVIDERS } from "../../src/shared/constants/providers.js";
+import { parseQuotaData } from "../../src/app/(dashboard)/dashboard/usage/components/ProviderLimits/utils.js";
+
+const ORBIT_USAGE_RESPONSE = {
+  success: true,
+  data: {
+    plan: "starter",
+    usagePercent: 100,
+    isExhausted: true,
+    resetPeriod: "monthly",
+    periodEnd: null,
+    tokensUsed: 57288213,
+    tokenLimit: 50000000,
+    tokensRemaining: 0,
+    daily: null,
+    credit: {
+      balanceMicroUsd: 397891136,
+      balanceUsd: 397.891136,
+      balanceUsdFormatted: "$397.89",
+      grantedMicroUsd: 500000000,
+      grantedUsd: 500,
+      spentMicroUsd: 102108864,
+      spentUsd: 102.108864,
+      currency: "USD",
+      source: "ledger",
+    },
+  },
+};
+
+function jsonResponse(body, status = 200) {
+  return new Response(JSON.stringify(body), {
+    status,
+    headers: { "Content-Type": "application/json" },
+  });
+}
+
+describe("Orbit Provider usage registry", () => {
+  it("exposes its usage endpoint and API-key eligibility", () => {
+    expect(PROVIDERS["orbit-provider"].usage?.url).toBe(
+      "https://api.orbit-provider.com/v1/usage",
+    );
+    expect(USAGE_SUPPORTED_PROVIDERS).toContain("orbit-provider");
+    expect(USAGE_APIKEY_PROVIDERS).toContain("orbit-provider");
+  });
+});
+
+describe("parseOrbitUsage", () => {
+  it("normalizes exhausted monthly tokens and USD credit", () => {
+    const usage = parseOrbitUsage(ORBIT_USAGE_RESPONSE);
+
+    expect(usage).toMatchObject({
+      plan: "starter",
+      isExhausted: true,
+      resetPeriod: "monthly",
+    });
+    expect(usage.quotas["Tokens (monthly)"]).toMatchObject({
+      used: 57288213,
+      total: 50000000,
+      remaining: 0,
+      remainingPercentage: 0,
+      resetAt: null,
+    });
+    expect(usage.quotas["Credit (USD)"]).toMatchObject({
+      used: 102.108864,
+      total: 500,
+      remaining: 397.891136,
+    });
+    expect(usage.quotas["Credit (USD)"].remainingPercentage).toBeCloseTo(79.5782272);
+  });
+
+  it("rejects an unsuccessful or malformed payload", () => {
+    expect(parseOrbitUsage({ success: false })).toEqual({
+      message: "Orbit Provider usage response was invalid.",
+    });
+  });
+});
+
+describe("getUsageForProvider(orbit-provider)", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("fetches Orbit usage with the connection API key", async () => {
+    proxyAwareFetch.mockResolvedValueOnce(jsonResponse(ORBIT_USAGE_RESPONSE));
+    const proxyOptions = { connectionProxyEnabled: true };
+
+    const usage = await getUsageForProvider({
+      provider: "orbit-provider",
+      apiKey: "test-orbit-key",
+    }, proxyOptions);
+
+    expect(usage.plan).toBe("starter");
+    expect(usage.quotas["Tokens (monthly)"].remainingPercentage).toBe(0);
+    expect(proxyAwareFetch).toHaveBeenCalledWith(
+      "https://api.orbit-provider.com/v1/usage",
+      expect.objectContaining({
+        method: "GET",
+        headers: {
+          Authorization: "Bearer test-orbit-key",
+          Accept: "application/json",
+        },
+      }),
+      proxyOptions,
+    );
+  });
+
+  it("returns an authentication message for an invalid API key", async () => {
+    proxyAwareFetch.mockResolvedValueOnce(jsonResponse({ error: "unauthorized" }, 401));
+
+    const usage = await getUsageForProvider({
+      provider: "orbit-provider",
+      apiKey: "invalid",
+    });
+
+    expect(usage.message).toMatch(/invalid or expired/i);
+  });
+});
+
+describe("parseQuotaData(orbit-provider)", () => {
+  it("renders only the credit progress bar", () => {
+    const usage = parseOrbitUsage(ORBIT_USAGE_RESPONSE);
+    const rows = parseQuotaData("orbit-provider", usage);
+
+    expect(rows).toHaveLength(1);
+    expect(rows[0]).toMatchObject({
+      name: "Credit (USD)",
+      used: 102.108864,
+      total: 500,
+    });
+    expect(rows[0].remainingPercentage).toBeCloseTo(79.5782272);
+  });
+});
diff --git a/tests/unit/usage-dispatch.test.js b/tests/unit/usage-dispatch.test.js
index 75096d78..097aa83b 100644
--- a/tests/unit/usage-dispatch.test.js
+++ b/tests/unit/usage-dispatch.test.js
@@ -16,6 +16,7 @@ const SUPPORTED = [
   "github", "gemini-cli", "antigravity", "claude", "codex", "kiro",
   "qoder", "qwen", "iflow", "ollama", "glm", "glm-cn",
   "minimax", "minimax-cn", "vercel-ai-gateway", "grok-cli",
+  "orbit-provider",
 ];
 
 describe("usage dispatch", () => {