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GitHub
github.com › anthropics › claude-code › issues › 3127
[BUG] API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"}} · Issue #3127 · anthropics/claude-code
July 8, 2025 - When the remaining context left is at exactly 0% and Claude Code has failed to auto-compact in a timely manner, I receive these errors. It to work. API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"}}1 · Regenerated API Token didn't work, but just starting a new chat did. Resuming the old one failed. 👍React with 👍4sangdth, LucaL1fe, proyectosssss and behroozazarkhalili ·
Published   Jul 08, 2025
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Stack Overflow
stackoverflow.com › questions › 78534165 › claude-api-error-despite-showing-that-its-working-in-anthropic-console
Claude API error despite showing that it's working in Anthropic Console
import { NextApiRequest, NextApiResponse } from 'next'; import Anthropic from '@anthropic-ai/sdk'; const client = new Anthropic({ apiKey: process.env.ANTHROPIC_API_KEY }); export async function POST(req: NextApiRequest, res: NextApiResponse) { const { message } = req.body; try { const result = await client.messages.create({ messages: [ { role: 'user', content: "Hello there", }, ], model: 'claude-3-haiku-20240307', max_tokens: 100, }); res.status(200).json({ text: result.content }); } catch (error) { console.error('Error fetching response:', error); res.status(500).json({ error: 'Error fetching response' }); } } ... [React][Node][MSSql] API Get Request Returns Array of Objects; Fetching Same Array on React Returns JSON.parse Error
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GitHub
github.com › anthropics › claude-code › issues › 9066
[BUG] API Error: 500 · Issue #9066 · anthropics/claude-code
October 7, 2025 - ⎿ API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":null} This means that there’s an internal server error on Claude’s side (a “500” error).
Published   Oct 07, 2025
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GitHub
github.com › anthropics › claude-code › issues › 3871
Anthropic API Overloaded: 500 Error on Simple Request · Issue #3871 · anthropics/claude-code
July 17, 2025 - [{"error":"Error: Command failed: ...rsions/node/v24.1.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:640:19174)","timestamp":"2025-07-17T21:08:24.476Z"},{"error":"Error: 500 {\"type\":\"error\",\"error\":{\"type\":\"api_error\",\"message\":\"Overloaded\"}}\n at eQ.generate ...
Published   Jul 17, 2025
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GitHub
github.com › anthropics › anthropic-sdk-typescript › issues › 425
Claude API error despite showing that its working in Anthropic Console. · Issue #425 · anthropics/anthropic-sdk-typescript
March 29, 2024 - try { const result = await client.messages.create({ messages: [ { role: 'user', content: "Hello there", }, ], model: 'claude-3-haiku-20240307', max_tokens: 100, }); res.status(200).json({ text: result.content }); } catch (error) { console.error('Error fetching response:', error); res.status(500).json({ error: 'Error fetching response' }); } }`
Published   May 26, 2024
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GitHub
github.com › musistudio › claude-code-router › issues › 98
API Error (500 · Issue #98 · musistudio/claude-code-router
July 3, 2025 - (attempt 3/10) ⎿ API Error (500 {"error":{"message":"Cannot read properties of undefined (reading 'default')","type":"api_error","code":"internal_error"}}) · Retrying in 4 seconds… (attempt 4/10) ⎿ API Error (500 {"error":{"message":"Cannot read properties of undefined (reading 'default')","type":"api_error","code":"internal_error"}}) · Retrying in 9 seconds… (attempt 5/10) 👍React with 👍2SamDc73 and real-marshal ·
Published   Jul 03, 2025
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Reddit
reddit.com › r/anthropic › 500 internal server error - internal claude.ai api for artifacts
r/Anthropic on Reddit: 500 internal server error - Internal Claude.ai API for artifacts
July 18, 2025 -

Guys, I'm sorry if this shouldnt go here but I dont really know what to do, I bought claude pro 2 days ago just to test artifacts that interact with the Claude.ai internal api and it just doesnt works, artifacts all return empty json errors and claude sonnet says the api is returning a 500 error, havent even been able to test artifacts, all status reports say everything is running, the connector and functions for artifacts its enabled, is this expected behaivour?, its with the window.claude.complete() api

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Hostingseekers
hostingseekers.com › hostingseekers - blog › how to fix claude ai internal server error (500, 403, 429 & more)
How to Fix Claude AI Internal Server Error
August 8, 2025 - If you are accessing Claude AI through an API or third-party application, any problem within that platform can also result in internal errors. For instance, if an API endpoint is misconfigured, access tokens are expired, or the hosting platform experiences downtime, it can impact your ability to interact with Claude.
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Reddit
reddit.com › r/claudecode › claude code max x5 ($100) – api error 500 “overloaded”
r/ClaudeCode on Reddit: Claude Code Max x5 ($100) – API Error 500 “Overloaded”
September 24, 2025 -

Has anyone else been running into this with Claude Code Max x5 ($100 plan)?

I keep getting:

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

This usually pops up when I’m working in Claude Code and trying to run requests. For something that costs $100/month, I didn’t expect “overloaded” errors like this.

  • Is this happening to others?

  • Is it a temporary Anthropic server capacity issue?

  • Or am I hitting some hidden rate limit even though I’m on the Max x5 plan?

Would appreciate any insights or workarounds from people who’ve faced this. Thanks!

Find elsewhere
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GitHub
github.com › musistudio › claude-code-router › issues › 527
API Error: 500 · Issue #527 · musistudio/claude-code-router
June 29, 2025 - There was an error while loading. Please reload this page · ⎿ API Error: 500 {"error":{"message":"fetch failedTypeError: fetch failed\n at node:internal/deps/undici/undici:13510:13\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async c0 (/usr/lib/nod ...
Published   Aug 11, 2025
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Claude
docs.claude.com › en › api › errors
Errors - Claude Docs
The maximum request size is 32 MB for standard API endpoints. 429 - rate_limit_error: Your account has hit a rate limit. 500 - api_error: An unexpected error has occurred internal to Anthropic’s systems.
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Reddit
reddit.com › r/claudecode › api error 500: internal server error - how to fix it?
r/ClaudeCode on Reddit: API Error 500: Internal Server Error - How to fix it?
November 18, 2025 -

I'm getting the following error when making an API call:

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CVF5U5Qc7DhyDdJW4RVeU"}

Anyone know what might be causing this? How can I resolve it?

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GitHub
github.com › anthropics › claude-code › issues › 8122
[BUG] Claude Code opus 500 error · Issue #8122 · anthropics/claude-code
August 21, 2025 - I'm using Claude's code, and this issue only occurs when making requests with the Opus model. Error: API Error: 500 {"type":"error","error":{"type":"api_error","message":"Overloaded"},"request_id":null} Requests with the Sonnet model work fine, but Opus consistently fails with the error above. 😕React ...
Published   Sep 24, 2025
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GitHub
github.com › anthropics › claude-code › issues › 7223
[Bug] Anthropic API Error: 500 Internal Server Error · Issue #7223 · anthropics/claude-code
August 2, 2025 - There was an error while loading. Please reload this page · Bug Description yes eactly. this is efficient and logical approach! ⎿ API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":null}
Published   Sep 05, 2025
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Latenode
community.latenode.com › bugs & issues
Error messages Claude API - Bugs & Issues - Latenode Official Community
November 27, 2024 - I’ve been running a flow for re-writing articles for a client based on their current URL. I’m running into a few errors now then: exec command error: request to pd server code 500 error: Error: {“type”:“error”,“error”:{“type”:“api_error”,“message”:“Internal server ...
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GitHub
github.com › anthropics › claude-code › issues › 4989
Anthropic API: Unexpected 500 Internal Server Error Causing Request Failures · Issue #4989 · anthropics/claude-code
August 2, 2025 - Bug Description API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"}} 動不動就卡住 要不然就是API有問題 這些token 你們會退還嗎?應該也不會 ... [{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code...
Published   Aug 02, 2025
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GitHub
github.com › ruvnet › claude-flow › issues › 183
API Error: 500 when starting a swarm · Issue #183 · ruvnet/claude-flow
July 9, 2025 - The swarm should be self-documenting - use memory_store to save all important information, decisions, and results throughout the execution. ⎿ API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"}}
Published   Jul 09, 2025
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Webvator
webvator.com › home › how to fix claude ai internal server error (what you need to know)
How to Fix Claude AI Internal Server Error (What You Need to Know) | Webvator
May 29, 2025 - In this article, we’ll explain what an Internal Server Error actually means, why it happens with Claude AI, and what steps you can take while waiting for it to resolve. An Internal Server Error (often shown as a 500 Error) is a general message that means something went wrong on the web server that’s hosting the service — in this case, Claude AI by Anthropic.