Error listings
Fix Anthropic API 429 OverloadedError caused by high traffic, implement retry/backoff strategy to continue API usage on paid plans Includes evidence for Anthropic API troubleshooting demand.
overloaded_error: Your API request is overloaded Resolve OpenAI API 429 rate limit errors affecting production AI integrations — increase quota, implement exponential backoff, adjust TPM/RPM limits Includes evidence for OpenAI API troubleshooting demand.
HTTPError: 429 Too Many Requests / rate limit reached for requests / exceeded token rate limit of your current pricing tier Fix Cursor editor where no AI models work despite correct network — requires troubleshooting model provider API key status, subscription tier, or backend outage Includes evidence for Cursor troubleshooting demand.
model service unavailable / model not available (all models affected) Fix Vercel preview deployment returning 403 forbidden despite successful build — check preview settings, team/org permissions, domain restrictions, and environment variable exposure Includes evidence for Vercel troubleshooting demand.
403 Error in Preview Panel even though site is working Developer using Claude Code with custom MCP tools experiences infinite hangs because server-level timeouts don't apply to individual tool invocations Includes evidence for Claude Code troubleshooting demand.
MCP per-server timeout not enforced on individual tool calls (stdio hangs indefinitely) User pays for Claude Pro plan but usage quota fills up overnight with no active sessions, losing access unexpectedly Includes evidence for Claude Code troubleshooting demand.
Current session limit already at 100% despite no activity; Usage limit reached message while limits far from being reached Paid Claude Code Max subscriber unable to launch remote sessions despite confirmed subscription and correct auth Includes evidence for Claude Code troubleshooting demand.
Remote session create failed: Request failed with status code 403 User encounters Anthropic API 500 internal server error when using Claude Code desktop app; needs to understand if this is transient or requires action. Includes evidence for Anthropic API / Claude Code troubleshooting demand.
API Error: 500 status code (no body). NON-FATAL: Lock acquisition failed for /Users/.../.local/share/claude/versions/ Developer building Cloudflare Worker with Python runtime hits silent upload failure when sending files above 1MB via multipart/form-data; no documentation warning about this limit exists. Includes evidence for Cloudflare troubleshooting demand.
Python Workers: multipart/form-data body parsing fails at ~1 MB (undocumented limit). Upload file <=1024 KB succeeds, >=1040 KB fails before reaching application code. After upgrading GitHub Copilot CLI to v1.0.51, the /remote on command shows a misleading admin-only error even when the user hasn't changed any org policies. Users need to re-enable or configure remote sessions. Includes evidence for GitHub Copilot troubleshooting demand.
Remote sessions are not enabled. Contact your organization administrator to enable remote sessions. (after updating to Copilot v1.0.51) Teams running LiteLLM proxy encounter 401 Unauthorized errors due to Pydantic v2 Optional field handling changes where missing default values break team membership validation. Includes evidence for LiteLLM troubleshooting demand.
LiteLLM_TeamMembership.litellm_budget_table missing default causes ValidationError → 401 response Developer using OpenAI Python SDK with a reverse-proxy base URL encounters WebSocket connection failure because the SDK incorrectly replaces all 'http://' substrings instead of only the scheme prefix. Includes evidence for OpenAI API troubleshooting demand.
websocket_base_url.replace() replaces ALL occurrences of http:// in URL, corrupting proxy configs: https://proxy.com/forward?target=http://backend → wss://proxy.com/forward?target=ws://backend Fix missing error type mapping so Bedrock/Vertex users get specific typed exceptions (413→RequestTooLargeError, 529→OverloadedError) matching canonical Anthropic client behavior Includes evidence for Anthropic API troubleshooting demand.
Bedrock and Vertex client _make_status_error missing 413/529 status codes — returns generic APIStatusError instead of RequestTooLargeError / OverloadedError Fix Azure OpenAI authentication regression where AAD bearer tokens stopped working after SDK upgrade, causing production auth failures Includes evidence for OpenAI API troubleshooting demand.
AzureOpenAI with AAD bearer token passed via api_key works in 2.33.0 but returns 401 Unauthorized in 2.34.0 Understand and fix unexpected token billing overcharge caused by prompt caching extending beyond configured cache_control breakpoint, wasting money on cached-but-unread tokens Includes evidence for Anthropic API troubleshooting demand.
Server writes additional cache entries past explicit cache_control breakpoint, billing 1.25x for tokens that are never read by downstream models Fix parsing race condition where intermediate incomplete SSE events trigger premature JSON parse on partial response data before the terminal 'incomplete' status arrives Includes evidence for OpenAI API troubleshooting demand.
Responses streaming structured output parses incomplete JSON before terminal incomplete status, producing malformed parsed results Handle Anthropic mid-stream SSE overloaded_error gracefully; prevent raw JSON leak to end-user UI; add proper error classification and retry logic Includes evidence for Anthropic API troubleshooting demand.
SSE event type 'overloaded_error' from Anthropic API surfaces raw JSON blob '{"type":"error","error":{"type":"overloaded_error",...}}' in Copilot chat bubble instead of user-safe error message Fix OAuth 2.1 connection failure for custom MCP servers in Claude Code; resolve infinite restart loop during authentication flow Includes evidence for Claude Code troubleshooting demand.
Custom MCP server with OAuth 2.1 authentication fails to connect in Claude Code/Claude Desktop — OAuth flow opens about:blank page and creates infinite restart loop instead of initiating auth prompt Stop false positive rate_limit classification when OpenAPI rejects unknown parameters containing rate_limit in their names; fix exception mapping in LiteLLM proxy Includes evidence for LiteLLM troubleshooting demand.
OpenAI's Unknown parameter 400 errors get misclassified as 429 RateLimitError when the rejected field name contains 'rate_limit' substring (e.g., _litellm_rate_limit_descriptors) Fix false rate_limit classification when OpenAI returns insufficient_quota as 429; understand how to distinguish quota exhaustion from rate limiting Includes evidence for OpenAI API troubleshooting demand.
HTTP 429 with error.code 'insufficient_quota' — billed account exhausts credits but receives 429 status instead of 402, causing client SDKs to treat it as rate_limit instead of billing_failure