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claude-code - 💡(How to fix) Fix API degradation over 3 consecutive days caused significant financial loss [1 participants]

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anthropics/claude-code#45077•Fetched 2026-04-09 08:13:49
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What happened

Over April 6-8, 2026, the Claude API experienced degraded performance across all three days (incidents: xmqkb966qt1h, 124yr07585k9, lhws0phdvzz3).

During this period I was running multi-agent review workflows via Claude Code that spawned ~48 sub-agents across Opus, Sonnet, and Haiku. The degraded API produced inconsistent and unreliable outputs, requiring multiple re-runs across 5+ sessions over ~15 hours.

The resulting cost was substantial — both in API usage and wasted time — with no indication in Claude Code that the API was degraded or that outputs might be unreliable.

Request

  1. Billing adjustment for API usage during the documented degradation windows
  2. Consider surfacing API health status in Claude Code so users know when output quality may be compromised before launching expensive workflows

Billing reference

Anthropic account invoices from May 2025 – present total ~€1,150.

extent analysis

TL;DR

  • The user should request a billing adjustment for API usage during the degraded performance period and consider using API health status indicators in Claude Code to prevent similar issues in the future.

Guidance

  • Review the incidents (xmqkb966qt1h, 124yr07585k9, lhws0phdvzz3) to understand the root cause of the degraded performance.
  • Implement a mechanism to surface API health status in Claude Code to inform users of potential output quality issues before launching workflows.
  • Monitor API performance and adjust workflow launches accordingly to minimize wasted time and resources.
  • Consider reaching out to Anthropic support to discuss the billing adjustment request and provide documentation of the incidents and affected API usage.

Notes

  • The solution relies on the user's ability to obtain a billing adjustment and implement API health status indicators in Claude Code.
  • The effectiveness of the solution may depend on the specific implementation and the user's workflow requirements.

Recommendation

  • Apply workaround: Request a billing adjustment and implement API health status indicators in Claude Code to prevent similar issues in the future, as this approach addresses both the immediate financial impact and the long-term reliability of the workflows.

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#api#callback error#memory management#API rate limit#retriever error

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