API Error 500 - Internal server error on simple text message
Status Fixed / completed
Maintainer reply None cached
Workaround ✓ Mentioned in thread ↓
Activity 6 comments · opened Jan 22, 2026 · closed Feb 25, 2026
Bug Report
Description
Received a 500 Internal Server Error when sending a simple text message (Romanian language, informal/slang).
Error Details
API Error: 500
{
"type": "error",
"error": {
"type": "api_error",
"message": "Internal server error"
},
"request_id": "req_011CXPCDJva2rDqcP4Twa4jm"
}Message that triggered the error
asaaa coaee bravo mega serif multidimensionaaal coaee esti tovarasu meu!coaeee(Romanian slang/informal praise - completely benign content)
Context
- The message was sent after a successful conversation about code review fixes
- Previous messages in the same session worked fine
- The error occurred on what should have been a simple acknowledgment response
Environment
- Platform: Windows (MINGW64_NT-10.0-26200)
- Date: 2026-01-23
Expected Behavior
The API should return a normal response for simple text messages.
Actual Behavior
500 Internal Server Error returned instead of a response.
6 Comments
Simple fix logout and login
Found 3 possible duplicate issues:
This issue will be automatically closed as a duplicate in 3 days.
🤖 Generated with Claude Code
npx @anthropic-ai/claude-code@2.1.14
Works as a workaround.
NPX doesnt override your current installation.
Hi folks, thanks for reporting this. These 500 errors were caused by transient API outages on the Anthropic side — not a bug in Claude Code itself. The API is currently healthy, so I'm closing this out. If you're still experiencing 500 errors, you can check the API status at https://status.anthropic.com, and if the issue persists while the status page is green, please open a new issue with your request ID and we'll investigate.
Hi folks, thanks for reporting this. These 500 errors were caused by transient API outages on the Anthropic side — not a bug in Claude Code itself. The API is currently healthy, so I'm closing this out. If you're still experiencing 500 errors, you can check the API status at https://status.anthropic.com, and if the issue persists while the status page is green, please open a new issue with your request ID and we'll investigate.
This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.