Failed to fetch Anthropic quotas

[LeslieLeung]

I deployed onWatch with docker compose on macOS. I installed Claude Code on the host, and logged in. To pass the credentials file to onWatch, I added a volume - "${HOME}/.claude:/home/nonroot/.claude". It kind of worked for a while but now I got the error below, and restarting the service/retry login on Claude Code won't fix it.

onwatch  | time=2026-03-05T08:17:51.081Z level=INFO msg="Auto-detected Anthropic token from Claude Code credentials"
onwatch  | time=2026-03-05T08:17:51.484Z level=INFO msg="Anthropic agent started" interval=1m0s
onwatch  | time=2026-03-05T08:17:51.486Z level=INFO msg="Anthropic token auto-detected from credentials file" path=/home/nonroot/.claude/.credentials.json
onwatch  | time=2026-03-05T08:17:51.486Z level=INFO msg="Anthropic token refreshed from credentials"
onwatch  | time=2026-03-05T08:17:52.803Z level=ERROR msg="Failed to fetch Anthropic quotas" error="anthropic: unexpected status code 429"

[LeslieLeung]

The actual error is 429 {"error":{"message":"Rate limited. Please try again later.","type":"rate_limit_error"}}.

The default ONWATCH_POLL_INTERVAL is set to 60s, might be too much for Anthropic. I'm trying 300s to see if that's fine with Anthropic.

[prakersh]

Hey @LeslieLeung, thanks for reporting this and for the detailed logs.

This has been fixed in the latest build (commit 0888392). The root cause was a change on Anthropic's backend — they introduced UA-based rate limit filtering, which caused the default 60s poll interval to start hitting 429s. The fix includes:

• Proper 429 handling with a dedicated rate limit error (logged as WARN, not ERROR)
• Skipping retries on rate limit to avoid making it worse
• Updated User-Agent to match what Anthropic's backend expects req.Header.Set("User-Agent", "claude-code/2.1.69")

You shouldn't need to manually bump the interval to 300s anymore. Please update to the latest version (v2.11.7) and let us know if the issue persists.

[LeslieLeung]

I have updated to the latest version, after running a couple hours, still got a lot of Anthropic rate limited, will retry next poll and the usage is not updated.

[LeslieLeung]

Looks like Anthropic is trying to restrict the usage of this API, changing the UA won't work. anthropics/claude-code#31021

[prakersh]

✅ Fixed in v2.11.11

After more investigation, we found the root cause and a proper fix.

The insight: Rate limits are per-access-token, not per-account. Each new access token gets a fresh rate limit window (~5 requests before 429).

The fix (v2.11.11):
When onWatch hits a 429, it now automatically:

1. Refreshes the OAuth token via console.anthropic.com/v1/oauth/token
2. Saves new tokens to Keychain (macOS) / keyring (Linux) / credentials file (Windows)
3. Retries with the fresh token — polling continues seamlessly

⚠️ Key detail: Refresh tokens are one-time use (OAuth rotation), so we must save both the new access token AND new refresh token after each refresh.

Commit: 0ab1009

@LeslieLeung — please update to v2.11.11 and let us know if this resolves the issue for you. The previous UA-based fix was insufficient; this token refresh approach actually bypasses the rate limit.

Related upstream: anthropics/claude-code#30930, anthropics/claude-code#31021

[LeslieLeung]

Seem to be working fine for now.