claude-code - 💡(How to fix) Fix API Error: 500 Internal server error on every new request [1 participants]

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anthropics/claude-code#48619Fetched 2026-04-16 06:55:27
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Error Message

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5jvfHX9dK24mPKRSAzd"} API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5k5g7sbBbn2hhbmBxZR"} · check status.claude.com API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5kFKVvbGZdy5eA48kfW"} · check status.claude.com

Code Example

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5jvfHX9dK24mPKRSAzd"}
API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5k5g7sbBbn2hhbmBxZR"} · 
     check status.claude.com
API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5kFKVvbGZdy5eA48kfW"} · 
     check status.claude.com
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Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

Every new request fails with 500 Internal Server Error. Issue is reproducible on clean fresh requests, not related to context size or conversation history.

Error: API Error: 500 {"type":"error","error":{"type":"api_error", "message":"Internal server error"},"request_id":"req_011Ca5jvfHX9dK24mPKRSAzd"} API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5kFKVvbGZdy5eA48kfW"} · ⎿  API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5kFKVvbGZdy5eA48kfW"} · check status.claude.com

What Should Happen?

Request should return a valid response from the API.

Error Messages/Logs

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5jvfHX9dK24mPKRSAzd"}
API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5k5g7sbBbn2hhbmBxZR"} · 
     check status.claude.com
API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca5kFKVvbGZdy5eA48kfW"} · 
     check status.claude.com

Steps to Reproduce

  1. Open Claude Code
  2. Start a new session / fresh chat
  3. Send any message (e.g. "hello")
  4. Immediately get 500 Internal Server Error
  5. Reproducible on every attempt, multiple times

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

2.1.109

Platform

Other

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Terminal.app (macOS)

Additional Information

Error persists across multiple sessions and fresh restarts. Issue started today April 15, 2026. API status page shows operational but error is consistent.

extent analysis

TL;DR

Check the API status page and Claude Code version for any updates or known issues that may be causing the 500 Internal Server Error.

Guidance

  • Verify the API status page at status.claude.com to ensure there are no ongoing issues or maintenance that could be causing the error.
  • Review the Claude Code version (2.1.109) to see if there are any known issues or updates that may resolve the problem.
  • Try checking the error logs for any additional information that may indicate the cause of the issue.
  • Consider reaching out to the Claude Code support team for further assistance, as the issue persists across multiple sessions and fresh restarts.

Example

No code snippet is provided as the issue seems to be related to an external API error.

Notes

The issue is reported to be a regression, meaning it worked in a previous version, but the last working version is not specified. The error is consistent and reproducible, which suggests a potential issue with the API or the current version of Claude Code.

Recommendation

Apply workaround: Check the API status page and wait for any updates or fixes from the Claude Code team, as the issue may be related to a temporary problem with the API.

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claude-code - 💡(How to fix) Fix API Error: 500 Internal server error on every new request [1 participants]