claude-code - 💡(How to fix) Fix [BUG] Bug Report: Claude Code API 500 Internal Server Error [1 comments, 2 participants]

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anthropics/claude-code#47436Fetched 2026-04-14 05:49:31
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Error Message

Error Details: "type": "error", "error": { "message": "Internal server error" Error Type: api_error Error Details: "type": "error", "error": { "message": "Internal server error" Error Type: api_error

Error Messages/Logs

Error Details: "type": "error", "error": { "message": "Internal server error" Error Type: api_error Error Details: "type": "error", "error": { "message": "Internal server error" Error Type: api_error Error Details: "type": "error", "error": { "message": "Internal server error" Error Type: api_error

Code Example

Request ID: req_011Ca21far44iwgStifUcxDk
Error Details:
json{
  "type": "error",
  "error": {
    "type": "api_error",
    "message": "Internal server error"
  },
  "request_id": "req_011Ca21far44iwgStifUcxDk"
}
Environment:

Tool: Claude Code (CLI)
HTTP Status: 500
Error Type: api_error
RAW_BUFFERClick to expand / collapse

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?

Request ID: req_011Ca21far44iwgStifUcxDk Error Details: json{ "type": "error", "error": { "type": "api_error", "message": "Internal server error" }, "request_id": "req_011Ca21far44iwgStifUcxDk" } Environment:

Tool: Claude Code (CLI) HTTP Status: 500 Error Type: api_error

What Should Happen?

Request ID: req_011Ca21far44iwgStifUcxDk Error Details: json{ "type": "error", "error": { "type": "api_error", "message": "Internal server error" }, "request_id": "req_011Ca21far44iwgStifUcxDk" } Environment:

Tool: Claude Code (CLI) HTTP Status: 500 Error Type: api_error

Error Messages/Logs

Request ID: req_011Ca21far44iwgStifUcxDk
Error Details:
json{
  "type": "error",
  "error": {
    "type": "api_error",
    "message": "Internal server error"
  },
  "request_id": "req_011Ca21far44iwgStifUcxDk"
}
Environment:

Tool: Claude Code (CLI)
HTTP Status: 500
Error Type: api_error

Steps to Reproduce

Request ID: req_011Ca21far44iwgStifUcxDk Error Details: json{ "type": "error", "error": { "type": "api_error", "message": "Internal server error" }, "request_id": "req_011Ca21far44iwgStifUcxDk" } Environment:

Tool: Claude Code (CLI) HTTP Status: 500 Error Type: api_error

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

2.1.104

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Request ID: req_011Ca21far44iwgStifUcxDk Error Details: json{ "type": "error", "error": { "type": "api_error", "message": "Internal server error" }, "request_id": "req_011Ca21far44iwgStifUcxDk" } Environment:

Tool: Claude Code (CLI) HTTP Status: 500 Error Type: api_error

extent analysis

TL;DR

The issue is likely related to a regression in the Claude Code version 2.1.104, causing an internal server error with a 500 HTTP status code.

Guidance

  • Verify that the issue is indeed a regression by checking the release notes of previous versions to see if any changes could have introduced this bug.
  • Try to reproduce the issue with a minimal example to isolate the cause and see if it's related to a specific input or configuration.
  • Check the Anthropic API documentation to ensure that the request being made is correctly formatted and valid.
  • Consider reaching out to the developers or support team for Claude Code to report the regression and ask for assistance in resolving the issue.

Notes

The lack of information about the last working version and the specific steps to reproduce the issue makes it difficult to provide a more detailed solution.

Recommendation

Apply workaround: Since the issue is likely a regression, trying to use a previous version of Claude Code that is known to work might be a temporary solution until the issue is fixed in a future release.

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