diff --git a/src/claude-usage.test.ts b/src/claude-usage.test.ts
index e868e2b..ce661c7 100644
--- a/src/claude-usage.test.ts
+++ b/src/claude-usage.test.ts
@@ -1,53 +1,28 @@
 import { describe, expect, it } from 'vitest';
 
-import { parseClaudeUsagePanel } from './claude-usage.js';
+import type { ClaudeUsageData } from './claude-usage.js';
 
-describe('parseClaudeUsagePanel', () => {
-  it('parses session and weekly usage from Claude CLI panel output', () => {
-    const sample = `
-Settings: Status Config Usage
-Loading usage data...
+describe('ClaudeUsageData', () => {
+  it('represents the API response structure correctly', () => {
+    const data: ClaudeUsageData = {
+      five_hour: { utilization: 45.2, resets_at: '2026-03-23T17:00:00Z' },
+      seven_day: { utilization: 72.1, resets_at: '2026-03-29T00:00:00Z' },
+      seven_day_sonnet: { utilization: 60.0, resets_at: '2026-03-29T00:00:00Z' },
+      seven_day_opus: { utilization: 80.0, resets_at: '2026-03-29T00:00:00Z' },
+    };
 
-Current session
-████ 4% used
-Resets in 8m (Asia/Seoul)
-
-Current week (all models)
-███████████████████████████████████████ 78% used
-Resets Mar 17 at 10pm (Asia/Seoul)
-
-Current week (Sonnet only)
-███ 6% used
-Resets Mar 17 at 11pm (Asia/Seoul)
-
-Extra usage
-Extra usage not enabled • /extra-usage to enable
-`;
-
-    expect(parseClaudeUsagePanel(sample)).toEqual({
-      five_hour: {
-        utilization: 4,
-        resets_at: 'Resets in 8m (Asia/Seoul)',
-      },
-      seven_day: {
-        utilization: 78,
-        resets_at: 'Resets Mar 17 at 10pm (Asia/Seoul)',
-      },
-    });
+    expect(data.five_hour?.utilization).toBe(45.2);
+    expect(data.seven_day?.utilization).toBe(72.1);
+    expect(data.seven_day_sonnet?.utilization).toBe(60.0);
+    expect(data.seven_day_opus?.utilization).toBe(80.0);
   });
 
-  it('converts percent left into used percent', () => {
-    const sample = `
-Current session
-60% left
-Resets in 1h
-`;
+  it('allows partial data (only five_hour)', () => {
+    const data: ClaudeUsageData = {
+      five_hour: { utilization: 10, resets_at: '2026-03-23T17:00:00Z' },
+    };
 
-    expect(parseClaudeUsagePanel(sample)).toEqual({
-      five_hour: {
-        utilization: 40,
-        resets_at: 'Resets in 1h',
-      },
-    });
+    expect(data.five_hour?.utilization).toBe(10);
+    expect(data.seven_day).toBeUndefined();
   });
 });
diff --git a/src/claude-usage.ts b/src/claude-usage.ts
index 3ed83c1..b286eae 100644
--- a/src/claude-usage.ts
+++ b/src/claude-usage.ts
@@ -1,183 +1,148 @@
-import { spawn } from 'child_process';
+/**
+ * Claude Usage API
+ *
+ * Fetches usage data directly from the Anthropic OAuth API.
+ * Supports multiple tokens for rotation-aware usage checking.
+ */
 
 import { logger } from './logger.js';
+import { getCurrentToken, getAllTokens } from './token-rotation.js';
 
 export interface ClaudeUsageData {
   five_hour?: { utilization: number; resets_at: string };
   seven_day?: { utilization: number; resets_at: string };
+  seven_day_sonnet?: { utilization: number; resets_at: string };
+  seven_day_opus?: { utilization: number; resets_at: string };
 }
 
-const CLAUDE_EXPECT_TIMEOUT_MS = 25000;
-const ANSI_RE = /\u001b(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])/g;
+const USAGE_ENDPOINT = 'https://api.anthropic.com/api/oauth/usage';
+const FETCH_TIMEOUT_MS = 10_000;
 
-const EXPECT_PROGRAM = `
-set timeout 20
-log_user 1
-match_max 200000
-set binary $env(CLAUDE_BINARY)
-spawn -noecho -- $binary --setting-sources user --allowed-tools ""
-expect {
-  -re "Do you trust the files in this folder\\\\?" { send "y\\r"; exp_continue }
-  -re "Quick safety check:" { send "\\r"; exp_continue }
-  -re "Yes, I trust this folder" { send "\\r"; exp_continue }
-  -re "Ready to code here\\\\?" { send "\\r"; exp_continue }
-  -re "Press Enter to continue" { send "\\r"; exp_continue }
-  timeout {}
-}
-send "/usage\\r"
-set deadline [expr {[clock seconds] + 20}]
-while {[clock seconds] < $deadline} {
-  expect {
-    -re "Do you trust the files in this folder\\\\?" { send "y\\r"; exp_continue }
-    -re "Quick safety check:" { send "\\r"; exp_continue }
-    -re "Yes, I trust this folder" { send "\\r"; exp_continue }
-    -re "Ready to code here\\\\?" { send "\\r"; exp_continue }
-    -re "Press Enter to continue" { send "\\r"; exp_continue }
-    -re "Current session" { after 2000; exit 0 }
-    -re "Failed to load usage data" { after 500; exit 2 }
-    eof { exit 3 }
-    timeout { send "\\r" }
-  }
-}
-exit 4
-`;
-
-function normalizeLines(rawText: string): string[] {
-  return rawText
-    .replace(ANSI_RE, '')
-    .replace(/\r/g, '\n')
-    .split('\n')
-    .map((line) => line.replace(/\s+/g, ' ').trim())
-    .filter(Boolean);
+interface UsageApiResponse {
+  five_hour?: { utilization: number; resets_at?: string };
+  seven_day?: { utilization: number; resets_at?: string };
+  seven_day_sonnet?: { utilization: number; resets_at?: string };
+  seven_day_opus?: { utilization: number; resets_at?: string };
 }
 
-function parsePercent(windowText: string): number | null {
-  const match = windowText.match(/(\d{1,3})%\s*(used|left)\b/i);
-  if (!match) return null;
-  const value = parseInt(match[1], 10);
-  if (Number.isNaN(value)) return null;
-  return match[2].toLowerCase() === 'left' ? 100 - value : value;
+function mapWindow(
+  w?: { utilization: number; resets_at?: string },
+): { utilization: number; resets_at: string } | undefined {
+  if (!w) return undefined;
+  return { utilization: w.utilization, resets_at: w.resets_at || '' };
 }
 
-function parseWindow(
-  lines: string[],
-  labels: string[],
-): { utilization: number; resets_at: string } | null {
-  const normalizedLabels = labels.map((label) => label.toLowerCase());
-  for (let i = 0; i < lines.length; i++) {
-    const line = lines[i].toLowerCase();
-    if (!normalizedLabels.some((label) => line.includes(label))) continue;
+async function fetchUsageForToken(
+  token: string,
+): Promise<ClaudeUsageData | null> {
+  const controller = new AbortController();
+  const timer = setTimeout(() => controller.abort(), FETCH_TIMEOUT_MS);
 
-    const windowLines = lines.slice(i, i + 6);
-    const windowText = windowLines.join('\n');
-    const utilization = parsePercent(windowText);
-    if (utilization === null) continue;
+  try {
+    const res = await fetch(USAGE_ENDPOINT, {
+      method: 'GET',
+      headers: {
+        Authorization: `Bearer ${token}`,
+        'anthropic-beta': 'oauth-2025-04-20',
+        'User-Agent': 'ejclaw/1.0',
+      },
+      signal: controller.signal,
+    });
 
-    const resetLine = windowLines.find((candidate) =>
-      candidate.toLowerCase().startsWith('resets'),
-    );
+    if (res.status === 401) {
+      logger.warn('Claude usage API: token expired or invalid (401)');
+      return null;
+    }
+    if (res.status === 429) {
+      logger.warn('Claude usage API: rate limited (429)');
+      return null;
+    }
+    if (!res.ok) {
+      logger.warn(
+        { status: res.status },
+        `Claude usage API: unexpected status ${res.status}`,
+      );
+      return null;
+    }
+
+    const data = (await res.json()) as UsageApiResponse;
 
     return {
-      utilization,
-      resets_at: resetLine || '',
+      five_hour: mapWindow(data.five_hour),
+      seven_day: mapWindow(data.seven_day),
+      seven_day_sonnet: mapWindow(data.seven_day_sonnet),
+      seven_day_opus: mapWindow(data.seven_day_opus),
     };
+  } catch (err) {
+    if ((err as Error).name === 'AbortError') {
+      logger.warn('Claude usage API: request timed out');
+    } else {
+      logger.warn(
+        { err },
+        'Claude usage API: fetch failed',
+      );
+    }
+    return null;
+  } finally {
+    clearTimeout(timer);
   }
-
-  return null;
 }
 
-export function parseClaudeUsagePanel(rawText: string): ClaudeUsageData | null {
-  const lines = normalizeLines(rawText);
-  if (lines.length === 0) return null;
-  if (
-    lines.some((line) =>
-      line.toLowerCase().includes('failed to load usage data'),
-    )
-  ) {
+/**
+ * Fetch Claude usage via the OAuth API.
+ * Uses the current active token from rotation.
+ */
+export async function fetchClaudeUsage(): Promise<ClaudeUsageData | null> {
+  const token =
+    getCurrentToken() || process.env.CLAUDE_CODE_OAUTH_TOKEN;
+  if (!token) {
+    logger.debug('No Claude OAuth token available for usage check');
     return null;
   }
-
-  const fiveHour = parseWindow(lines, ['Current session']);
-  if (!fiveHour) return null;
-
-  const sevenDay =
-    parseWindow(lines, ['Current week (all models)']) ||
-    parseWindow(lines, [
-      'Current week (Sonnet only)',
-      'Current week (Sonnet)',
-    ]) ||
-    parseWindow(lines, ['Current week (Opus)']);
-
-  return {
-    five_hour: fiveHour,
-    ...(sevenDay ? { seven_day: sevenDay } : {}),
-  };
+  return fetchUsageForToken(token);
 }
 
-export async function fetchClaudeUsageViaCli(
-  binary = 'claude',
-): Promise<ClaudeUsageData | null> {
-  return new Promise((resolve) => {
-    let output = '';
-    let finished = false;
-
-    const finish = (value: ClaudeUsageData | null) => {
-      if (finished) return;
-      finished = true;
-      clearTimeout(timer);
-      resolve(value);
-    };
-
-    let proc: ReturnType<typeof spawn> | null = null;
-    try {
-      proc = spawn('expect', ['-c', EXPECT_PROGRAM], {
-        stdio: ['ignore', 'pipe', 'pipe'],
-        env: {
-          ...(process.env as Record<string, string>),
-          CLAUDE_BINARY: binary,
-        },
-      });
-    } catch (err) {
-      logger.debug({ err }, 'Claude CLI PTY probe unavailable');
-      finish(null);
-      return;
-    }
-
-    const timer = setTimeout(() => {
-      try {
-        proc?.kill('SIGTERM');
-      } catch {
-        /* ignore */
-      }
-      finish(null);
-    }, CLAUDE_EXPECT_TIMEOUT_MS);
-
-    if (!proc.stdout || !proc.stderr) {
-      finish(null);
-      return;
-    }
-
-    proc.stdout.setEncoding('utf8');
-    proc.stderr.setEncoding('utf8');
-    proc.stdout.on('data', (chunk: string) => {
-      output += chunk;
-    });
-    proc.stderr.on('data', (chunk: string) => {
-      output += chunk;
-    });
-    proc.on('error', (err) => {
-      logger.debug({ err }, 'Claude CLI PTY probe failed to start');
-      finish(null);
-    });
-    proc.on('close', () => {
-      const parsed = parseClaudeUsagePanel(output);
-      if (!parsed && output.trim()) {
-        logger.debug(
-          { tail: output.slice(-400) },
-          'Claude CLI PTY probe produced unparsable output',
-        );
-      }
-      finish(parsed);
-    });
-  });
+export interface ClaudeAccountUsage {
+  index: number;
+  masked: string;
+  isActive: boolean;
+  isRateLimited: boolean;
+  usage: ClaudeUsageData | null;
 }
+
+/**
+ * Fetch usage for ALL configured tokens.
+ * Returns per-account usage for dashboard display.
+ */
+export async function fetchAllClaudeUsage(): Promise<ClaudeAccountUsage[]> {
+  const allTokens = getAllTokens();
+  if (allTokens.length === 0) {
+    // Single token fallback
+    const token = process.env.CLAUDE_CODE_OAUTH_TOKEN;
+    if (!token) return [];
+    const usage = await fetchUsageForToken(token);
+    return [{
+      index: 0,
+      masked: `${token.slice(0, 20)}...${token.slice(-4)}`,
+      isActive: true,
+      isRateLimited: false,
+      usage,
+    }];
+  }
+
+  const results: ClaudeAccountUsage[] = [];
+  for (const t of allTokens) {
+    const usage = await fetchUsageForToken(t.token);
+    results.push({
+      index: t.index,
+      masked: t.masked,
+      isActive: t.isActive,
+      isRateLimited: t.isRateLimited,
+      usage,
+    });
+  }
+  return results;
+}
+
+// Legacy alias
+export const fetchClaudeUsageViaCli = fetchClaudeUsage;
diff --git a/src/token-rotation.ts b/src/token-rotation.ts
index 944c7a3..997a970 100644
--- a/src/token-rotation.ts
+++ b/src/token-rotation.ts
@@ -29,7 +29,10 @@ export function initTokenRotation(): void {
   const single = process.env.CLAUDE_CODE_OAUTH_TOKEN;
 
   const raw = multi
-    ? multi.split(',').map((t) => t.trim()).filter(Boolean)
+    ? multi
+        .split(',')
+        .map((t) => t.trim())
+        .filter(Boolean)
     : single
       ? [single]
       : [];
@@ -99,6 +102,18 @@ export function getTokenCount(): number {
   return tokens.length;
 }
 
+/** Get all configured tokens (masked for display, raw for API calls). */
+export function getAllTokens(): { index: number; token: string; masked: string; isActive: boolean; isRateLimited: boolean }[] {
+  const now = Date.now();
+  return tokens.map((t, i) => ({
+    index: i,
+    token: t.token,
+    masked: `${t.token.slice(0, 20)}...${t.token.slice(-4)}`,
+    isActive: i === currentIndex,
+    isRateLimited: Boolean(t.rateLimitedUntil && t.rateLimitedUntil > now),
+  }));
+}
+
 /** Diagnostic info. */
 export function getTokenRotationInfo(): {
   total: number;
diff --git a/src/unified-dashboard.ts b/src/unified-dashboard.ts
index 2e42cf7..0fbf0bd 100644
--- a/src/unified-dashboard.ts
+++ b/src/unified-dashboard.ts
@@ -5,8 +5,10 @@ import path from 'path';
 
 import { STATUS_SHOW_ROOMS, USAGE_DASHBOARD_ENABLED } from './config.js';
 import {
-  fetchClaudeUsageViaCli,
+  fetchClaudeUsage as fetchClaudeUsageApi,
+  fetchAllClaudeUsage,
   type ClaudeUsageData,
+  type ClaudeAccountUsage,
 } from './claude-usage.js';
 import {
   composeDashboardContent,
@@ -349,10 +351,10 @@ async function fetchClaudeUsage(): Promise<ClaudeUsageData | null> {
     return null;
   }
 
-  const cliUsage = await fetchClaudeUsageViaCli();
-  if (cliUsage) {
+  const apiUsage = await fetchClaudeUsageApi();
+  if (apiUsage) {
     usageApi429Streak = 0;
-    return cliUsage;
+    return apiUsage;
   }
 
   try {
@@ -520,20 +522,18 @@ async function buildUsageContent(): Promise<string> {
   );
   const shouldFetchClaudeUsage = USAGE_DASHBOARD_ENABLED;
 
-  const [liveClaudeUsage, codexUsage] = await Promise.all([
+  const [liveClaudeAccounts, codexUsage] = await Promise.all([
     shouldFetchClaudeUsage && !hasActiveClaudeWork
-      ? fetchClaudeUsage()
+      ? fetchAllClaudeUsage()
       : Promise.resolve(null),
     fetchCodexUsage(),
   ]);
 
-  const claudeUsage = shouldFetchClaudeUsage
-    ? liveClaudeUsage || cachedClaudeUsageData
-    : null;
+  // Update cache with first account's data for backward compat
   const claudeUsageIsCached =
-    shouldFetchClaudeUsage && !liveClaudeUsage && !!cachedClaudeUsageData;
-  if (shouldFetchClaudeUsage && liveClaudeUsage) {
-    cachedClaudeUsageData = liveClaudeUsage;
+    shouldFetchClaudeUsage && !liveClaudeAccounts && !!cachedClaudeUsageData;
+  if (shouldFetchClaudeUsage && liveClaudeAccounts?.length) {
+    cachedClaudeUsageData = liveClaudeAccounts[0].usage;
   }
 
   const lines: string[] = ['📊 *사용량*'];
@@ -551,11 +551,19 @@ async function buildUsageContent(): Promise<string> {
   };
   const rows: UsageRow[] = [];
 
-  if (claudeUsage) {
-    const h5 = claudeUsage.five_hour;
-    const d7 = claudeUsage.seven_day;
+  const claudeAccounts = liveClaudeAccounts
+    || (cachedClaudeUsageData ? [{ index: 0, masked: '', isActive: true, isRateLimited: false, usage: cachedClaudeUsageData }] : []);
+
+  for (const account of claudeAccounts) {
+    const u = account.usage;
+    if (!u) continue;
+    const h5 = u.five_hour;
+    const d7 = u.seven_day;
+    const label = claudeAccounts.length > 1
+      ? `Claude${account.index + 1}${account.isActive ? '⚡' : ''}${account.isRateLimited ? '🚫' : ''}`
+      : claudeUsageIsCached ? 'Claude*' : 'Claude';
     rows.push({
-      name: claudeUsageIsCached ? 'Claude*' : 'Claude',
+      name: label,
       h5pct: h5
         ? h5.utilization > 1
           ? Math.round(h5.utilization)