OAuth usage API (/api/oauth/usage) returns persistent 429 rate limit

[moonchan-park]

Description

The OAuth usage API endpoint (api.anthropic.com/api/oauth/usage) is returning persistent HTTP 429 (rate_limit_error) responses, preventing the HUD statusline from displaying rate limit / token usage information.

Environment

• Claude Code version: 2.1.69
• OS: Ubuntu Linux 6.17.0-14-generic
• oh-my-claudecode plugin: 4.1.8 (uses this API for HUD statusline)

Steps to Reproduce

1. Have valid OAuth credentials (~/.claude/.credentials.json with non-expired accessToken)
2. Call the usage API:

node -e "
const creds = JSON.parse(require('fs').readFileSync(require('os').homedir() + '/.claude/.credentials.json', 'utf-8'));
const c = creds.claudeAiOauth || creds;
const https = require('https');
const req = https.request({
  hostname: 'api.anthropic.com',
  path: '/api/oauth/usage',
  method: 'GET',
  headers: {
    'Authorization': 'Bearer ' + c.accessToken,
    'anthropic-beta': 'oauth-2025-04-20',
    'Content-Type': 'application/json',
  },
  timeout: 10000,
}, (res) => {
  let data = '';
  res.on('data', chunk => data += chunk);
  res.on('end', () => console.log('Status:', res.statusCode, 'Body:', data));
});
req.on('error', e => console.log('Error:', e.message));
req.end();
"

3. Consistently returns: Status: 429 Body: {"error":{"message":"Rate limited. Please try again later.","type":"rate_limit_error"}}

Expected Behavior

The usage API should return rate limit utilization data (five_hour, seven_day percentages) when called with valid OAuth credentials at reasonable intervals.

Actual Behavior

Persistent 429 responses regardless of retry interval. The /usage command in Claude Code also fails to display usage information.

Impact

• HUD statusline cannot display rate limit information
• Users cannot monitor their token usage during sessions

[github-actions]

Found 3 possible duplicate issues:

1. [BUG] /api/oauth/usage endpoint returns persistent 429 for Claude Max users (retry-after: 0) #30930
2. [Bug] /usage command shows indefinite loading state #30221
3. [BUG] Error: Failed to load usage data #8473

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🤖 Generated with Claude Code

[sk-ruban]

have the same issue too!

[ksc98]

same issue!

[moonchan-park]

Closing as duplicate of #30930 — same persistent 429 on /api/oauth/usage endpoint. Upvoted the original issue.