[BUG] Constantly Getting API Error: 500

Resolved 💬 68 comments Opened Oct 7, 2025 by gidorah Closed Feb 25, 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?

I am getting error below for nearly every prompt.

  • Tried plan mode on and off.
  • Cleared session
  • Closed terminal (ghostty) and opened again
  • It seems like when files are not involved in the session errors don't occur.

What Should Happen?

Claude should run prompts successfully

Error Messages/Logs

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

Steps to Reproduce

The prompt is use:

You are an expert project manager. Your task is to update Duration calculation of "Phase 2: Design" in @"Project Management/Project_Timeline_Estimates.md".

Detailed task descriptions and info is in @"Project Management/WBS.csv".

When calculating duration of a phase you should consider effort shared by the roles. For example implementing login screen task can have total effort of 20 hours but if 12 hours of
BE dev 8 hours of FE dev is involved and it is possible them to work in parallel in this specific task you can estimate the duration lets say 13 hours. Assume that team has high
collaboration capacity, maybe it is impossible to total parallelization but members can work together efficiently.

Also you can find team configuration in @"Project Management/Project_Timeline_Estimates.md" too to understand resources.

ultrahink

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.9 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

_No response_

View original on GitHub ↗

68 Comments

lwagner-getmomo · 9 months ago

Same, it's pretty frequent.

And as per usual, the status page shows everything is just fine:

<img width="913" height="916" alt="Image" src="https://github.com/user-attachments/assets/b9ca3fd2-8278-4c8a-b2b8-efa6b9918551" />

Clearly, it's not fine:

<img width="828" height="395" alt="Image" src="https://github.com/user-attachments/assets/754bba4d-0531-4e71-97dc-f657904f6f98" />

parkertoddbrooks · 8 months ago

+1

ayo-sattere · 8 months ago

+1

<img width="492" height="85" alt="Image" src="https://github.com/user-attachments/assets/6a2797c5-3676-4210-a576-6ef2d01bfd93" />

ibrahimrajabli · 8 months ago

+1

⎿  API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CVF3pFmX1PX1Eox6oo7ZR"}

bejewel-siyoon · 8 months ago

+1

sidequestlegend · 8 months ago

+1

gafarcode · 8 months ago

+1

Jacki1223 · 8 months ago

+1

devr-tech · 8 months ago

+1

RomanBiniukov · 8 months ago

You could have just said hi to me :(
<img width="828" height="158" alt="Image" src="https://github.com/user-attachments/assets/e46ed041-3368-43f1-9548-04b66c5c7e64" />

juuuuuuuuuuuuuu · 8 months ago

저도 동일한 이슈 발생합니다. 어떻게 해야할까요?

YuzuRain · 8 months ago

any sol?

YounesFl · 8 months ago

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CVF3vMcv5w9jN4RMjMod4"}

linhuiw · 8 months ago

https://status.claude.com/

Elevated error rates to Sonnet 4.5 on Claude Code

pranetrameshcn · 8 months ago

+1

shshjhjh4455 · 8 months ago

+1

hendersonunno · 8 months ago

+1

hecateKat · 8 months ago

+1

Kakeru-Ishii · 8 months ago

+1

dev0zzz · 8 months ago

+1

AlexNevoScub · 8 months ago

+1

MrFluffSoft · 8 months ago

+1

sudashui6 · 8 months ago

+1

SylvainKlein · 8 months ago

+1

Siyabulela · 8 months ago

+1

OwenWo0 · 8 months ago

+1

zewcro · 8 months ago

+1

shshjhjh4455 · 8 months ago

SOLVED;

Yoogi-7 · 7 months ago

Not working...

github-actions[bot] · 6 months ago

This issue has been inactive for 30 days. If the issue is still occurring, please comment to let us know. Otherwise, this issue will be automatically closed in 30 days for housekeeping purposes.

redblacktree · 5 months ago

Still occurring.

<img width="2070" height="218" alt="Image" src="https://github.com/user-attachments/assets/04fbea57-eeef-46b5-aeab-bcb70d89e900" />

Chemaclass · 5 months ago

+1

UPDATE: Ok, now it worked again after restarting the IDE 🤔

legion-support · 5 months ago

+1

UPDATE: it’s working. “go on” did the trick after a few tries.

IggyGG · 5 months ago

+1

keriat · 5 months ago

+1

Katahdin · 5 months ago

+1

legion-support · 5 months ago

+1

API ERROR: 500

UPDATE: it’s working again. “go on” finally got through my jobs with no API errors.

rhythmSpotlight · 5 months ago

Hey, +1

<img width="1470" height="452" alt="Image" src="https://github.com/user-attachments/assets/46d0c62b-acda-414f-be27-8d8e6619c2d9" />

Reza-Nazemzadegan · 5 months ago

+1
Just happened to me

alonsoburon · 5 months ago

+1 Me too

nickdryder · 5 months ago

+1 also experiencing this.

reqlex · 5 months ago

+1

boru80 · 5 months ago

+1

illiachumak · 5 months ago

+1

pierreclouard · 5 months ago

same

prompt-ai-studio · 5 months ago

looks like claude code for VS has a error, I have the
same issue now , we are almost 10 users with the same issue, but nobody from claude response

robertdaykin84-ops · 5 months ago

+1

Danz192 · 5 months ago

+1

bmamouri · 5 months ago

+1

enzolarosa · 5 months ago

+1

lordisp · 5 months ago

+1

athanormark · 5 months ago

+1

gavriushkinegor · 5 months ago

+1

prompt-ai-studio · 5 months ago

<img width="1245" height="653" alt="Image" src="https://github.com/user-attachments/assets/a0de6e40-84b2-45ff-b096-cf537939dc56" />

prompt-ai-studio · 5 months ago

you can follow the incident in the page:
https://status.claude.com/

robertdaykin84-ops · 5 months ago

Appears to be fixed on my end

bkorpan · 5 months ago

Am getting this now for the first time.

akash2017sky · 5 months ago

I am getting the same error at my end right now.
API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server
error"},"request_id":"req_011CXoMf77mvycuNJ23kZwGP"}

EdiWeeks · 5 months ago

Same here:

<img width="845" height="46" alt="Image" src="https://github.com/user-attachments/assets/ffed54d1-6dc2-4b44-8512-1b822017c000" />

dev-bernardo · 5 months ago

Same here:

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

warrenhharding · 5 months ago

I've been getting this on and off for the last 24 hours. Very irritating. Sometimes closing VS Code and re-opening works - and sometimes it doesn't.

HynDuf · 4 months ago

+1

VadimSterlin · 4 months ago

+1

eepson123tw · 4 months ago

+1

Chaysen · 4 months ago

+1

pcavendano · 4 months ago

+1

grandones · 4 months ago

+1

stevenpetryk · 4 months ago

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.