›_ Claude Code Issues
Claude Code Issues / #35469

[BUG] API Error: 500 Internal Server Errror

Resolved 💬 16 comments Opened Mar 17, 2026 by MrAnde7son Closed Mar 21, 2026

Preflight Checklist

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

What's Wrong?

Getting the following error while using claude code in cursor:
{"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CZ9DUaeYTNCciUDN45jcH"}

What Should Happen?

should work

Error Messages/Logs

{"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CZ9DUaeYTNCciUDN45jcH"}

Steps to Reproduce

  1. enter prompt in claude code (cursor)
  2. get error

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.71 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_

View original on GitHub ↗

16 Comments

xeayabe · 4 months ago

same

cancel-cloud · 4 months ago

same

KahunaCodes · 4 months ago

same

mritterman · 4 months ago

same

kirklandsig · 4 months ago

Samsies lol

WhatzzUp · 4 months ago

same

mateusz-kacpura · 4 months ago

Tailand, same

OptionBase · 4 months ago

same
API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"}

bmvkrd · 4 months ago

Refund!

mljaniczek · 4 months ago

same

chrisdevelops · 4 months ago

I am getting this as well. I only started getting this when I was using Superpowers across multiple projects at the same time. I suspect that it might be related to multiple concurrent processes going on at once.

ERROR

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server                        
     error"},"request_id":"req_011CZ9EFBH7wXhW2HNgAfzPh"}

DETAILS
OS: MacOS (Arm)
Model: Claude Opus 4.6 (version 2.1.76)
Terminal: Ghostty + Tmux

github-actions[bot] · 4 months ago

Found 3 possible duplicate issues:

  1. https://github.com/anthropics/claude-code/issues/35472
  2. https://github.com/anthropics/claude-code/issues/35467
  3. https://github.com/anthropics/claude-code/issues/35462

This issue will be automatically closed as a duplicate in 3 days.

  • If your issue is a duplicate, please close it and 👍 the existing issue instead
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🤖 Generated with Claude Code

bmvkrd · 4 months ago

Claude:
API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CZ9DVpYyuujt1gNJb5pAu"}

Me
What request is causing 500 error for you? Show me the URL/body?

Claude
I haven't encountered any 500 errors on my end — I was just proceeding with the implementation and hadn't made any HTTP requests.

😄

Abhisherlocked · 4 months ago

same issue !

isudoajl · 4 months ago

yeap... same

github-actions[bot] · 3 months ago

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.