[Bug] Anthropic API Error: Internal Server Error (500)

Resolved 💬 17 comments Opened Nov 25, 2025 by budivoogt Closed Nov 25, 2025
💡 Likely answer: A maintainer (ashwin-ant, collaborator) responded on this thread — see the highlighted reply below.

Bug Description
getting 500 error API Error: 500 {"type":"error","error":{"typ
e":"api_error","message":"Internal server
error"},"request_id":null}

Environment Info

  • Platform: darwin
  • Terminal: vscode
  • Version: 2.0.53
  • Feedback ID: f9d95f2c-9705-423b-9325-9ec437d05996

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/budi_daily/.local/share/claude/versions/2.0.53 (expected in multi-process scenarios)\n    at nL0 (/$bunfs/root/claude:2656:1622)\n    at F6A (/$bunfs/root/claude:2656:1300)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-25T20:31:44.798Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/budi_daily/.local/share/claude/versions/2.0.53 (expected in multi-process scenarios)\n    at nL0 (/$bunfs/root/claude:2656:1622)\n    at E6A (/$bunfs/root/claude:2654:12709)\n    at async p97 (/$bunfs/root/claude:2654:13911)\n    at async Zx (/$bunfs/root/claude:2656:236)\n    at async <anonymous> (/$bunfs/root/claude:2656:12469)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-25T20:31:53.211Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at readFileSync (unknown)\n    at readFileSync (/$bunfs/root/claude:12:370)\n    at $rB (/$bunfs/root/claude:4243:16975)\n    at call (/$bunfs/root/claude:1459:912)\n    at call (/$bunfs/root/claude:1455:5768)\n    at lt8 (/$bunfs/root/claude:2164:20837)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-25T20:32:16.339Z"},{"error":"ZodError\n    at error (/$bunfs/root/claude:77:18464)\n    at parse (/$bunfs/root/claude:77:11726)\n    at GC7 (/$bunfs/root/claude:4025:4752)\n    at async <anonymous> (/$bunfs/root/claude:4025:6267)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-25T20:37:39.810Z"},{"error":"Error: Request was aborted.\n    at H (/$bunfs/root/claude:2026:1477)\n    at abort (unknown)\n    at R_ (/$bunfs/root/claude:2748:64249)\n    at <anonymous> (/$bunfs/root/claude:2737:3633)\n    at <anonymous> (/$bunfs/root/claude:832:645)\n    at <anonymous> (/$bunfs/root/claude:717:51118)\n    at G (/$bunfs/root/claude:832:638)\n    at emit (/$bunfs/root/claude:824:1505)\n    at processInput (/$bunfs/root/claude:831:740)\n    at flushIncomplete (/$bunfs/root/claude:831:564)","timestamp":"2025-11-25T20:43:34.460Z"},{"error":"Error: 500 {\"type\":\"error\",\"error\":{\"type\":\"api_error\",\"message\":\"Internal server error\"},\"request_id\":null}\n    at generate (/$bunfs/root/claude:415:9679)\n    at makeRequest (/$bunfs/root/claude:1262:5434)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-25T20:43:41.361Z"},{"error":"Error: 500 {\"type\":\"error\",\"error\":{\"type\":\"api_error\",\"message\":\"Internal server error\"},\"request_id\":null}\n    at generate (/$bunfs/root/claude:415:9679)\n    at makeRequest (/$bunfs/root/claude:1262:5434)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-25T20:43:48.776Z"}]

View original on GitHub ↗

17 Comments

mike1858 · 7 months ago

I'm having overloaded errors.

<img width="2559" height="578" alt="Image" src="https://github.com/user-attachments/assets/fdd28228-f8e1-4766-9778-ed48456ad33d" />

beardsciences · 7 months ago

<img width="1044" height="108" alt="Image" src="https://github.com/user-attachments/assets/82acd3b7-ab03-4c0a-9eb9-289fad87ed7b" />

I am also experiencing this.

ciefa · 7 months ago

I'm having error 529:

API Error: 529 
{"type":"error","error":{"type":"overloaded_error","message":"Overloaded"},"request_id":null}
kualta · 7 months ago

not experiencing this, skill issue?

kolkov · 7 months ago

API Error: 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded"},"request_id":null} +1

github-actions[bot] · 7 months ago

Found 3 possible duplicate issues:

  1. https://github.com/anthropics/claude-code/issues/12342
  2. https://github.com/anthropics/claude-code/issues/12197
  3. https://github.com/anthropics/claude-code/issues/9066

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
  • To prevent auto-closure, add a comment or 👎 this comment

🤖 Generated with Claude Code

ciefa · 7 months ago

wen fix

ciefa · 7 months ago

oki its working for me again

cya next gh issue nerds <3

kolkov · 7 months ago

 Set model to sonnet (claude-sonnet-4-5-20250929) - this solve my problem.

JulianPatty · 7 months ago

Without Claude I have to think. This is cruelty.

ashwin-ant collaborator · 7 months ago
MatthewJamisonJS · 7 months ago

<img width="1183" height="230" alt="Image" src="https://github.com/user-attachments/assets/60dd952d-8a74-4188-8161-fb78fe4534e3" />

This typically happens during a complex task, right before an "auto-compaction" occurs

athilasb · 7 months ago

529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded"},"request_id":null}

<img width="768" height="99" alt="Image" src="https://github.com/user-attachments/assets/acdc371c-a29a-42ea-a6d0-c28f63c60dfe" />

genesiscz · 7 months ago

Seems to work again

<img width="1204" height="140" alt="Image" src="https://github.com/user-attachments/assets/a5aa8c9f-0b91-491f-941b-cb866522215d" />

pchalasani · 7 months ago
<img alt="Image" width="1183" height="230" src="https://private-user-images.githubusercontent.com/99699313/518856693-60dd952d-8a74-4188-8161-fb78fe4534e3.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.5SEcFNnM25ue9lsCln4ZQT14Cd5y6b0nZwi_FgSU1F8"> This typically happens during a complex task, right before an "auto-compaction" occurs

It's happening to me at 56% usage, not close to compaction at all (only for opus; sonnet is fine)

ashwin-ant collaborator · 7 months ago

This is now resolved.

github-actions[bot] · 7 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.