Fix Claude Code OAuth Error 500: Causes and Solutions

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Learn to fix Claude Code OAuth Error 500 by understanding its causes and applying verified solutions such as cache clearing and session reset.

intermediate Published 14 Apr 2026

Action Steps

Identify the cause of the OAuth error 500
Clear the cache at ~/.claude/cache
Start a new conversation session
Update Claude Code to the latest version
Verify authentication handshake between browser and CLI

Who Needs to Know This

Developers and engineers working with Claude Code and OAuth authentication can benefit from this guide to resolve common errors and improve their productivity.

Key Insight

💡 OAuth error 500 occurs when the authentication handshake between the browser and CLI fails, and can be fixed by updating Claude Code, clearing cache, and starting a new session.

Key Takeaways

Learn to fix Claude Code OAuth Error 500 by understanding its causes and applying verified solutions such as cache clearing and session reset.

Full Article

Title: Fix Claude Code OAuth Error 500: Causes and Solutions

URL Source: https://dev.to/zacvibecodez/fix-claude-code-oauth-error-500-causes-and-solutions-1cai

Published Time: 2026-04-14T00:14:03Z

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Posted on Apr 14 • Originally published at [remoteopenclaw.com](https://remoteopenclaw.com/blog/claude-code-oauth-error-500-fix/)

# Fix Claude Code OAuth Error 500: Causes and Solutions

[#claude](https://dev.to/t/claude)[#ai](https://dev.to/t/ai)[#productivity](https://dev.to/t/productivity)[#tutorial](https://dev.to/t/tutorial)

> Originally published on [Remote OpenClaw](https://remoteopenclaw.com/blog/claude-code-oauth-error-500-fix/).

Claude Code OAuth error 500 occurs when the authentication handshake between your browser and the CLI fails during login. The most common fixes are updating Claude Code, clearing the cache at `~/.claude/cache`, and starting a new conversation session.

Key Takeaways

* OAuth error 500 means the server-side authentication flow failed, not a pr

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Fix Claude Code OAuth Error 500: Causes and Solutions

Key Takeaways

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