Claude Code auth

OAuth Token Lost Between Sessions

After successfully authenticating with OAuth during a Claude Code session, the token is lost when starting a new session. Users are forced to re-authenticate every time they run Claude Code, defeating the purpose of persistent authentication.

This commonly occurs when the agent doesn't properly serialize session state or when the token storage mechanism isn't configured for persistence across CLI invocations.

Error Messages You Might See

Error: No valid OAuth token found Session expired, re-authentication required Failed to load persisted credentials
Error: No valid OAuth token foundSession expired, re-authentication requiredFailed to load persisted credentials

Common Causes

  1. Session token stored in memory-only structures instead of persistent storage (files or database)
  2. Token refresh mechanism not triggered before token expiration
  3. Missing environment variable or config file for token persistence path
  4. Session directory permissions preventing write/read operations
  5. Token encryption/decryption logic failing silently on reload

How to Fix It

Implement a token store using a local file (e.g., ~/.claude-code/tokens.json) with proper encryption. Add a token refresh check at CLI startup. Ensure the session directory exists with correct permissions (700). Test token round-trip serialization with unit tests.

Real developers can help you.

Franck Plazanet Franck Plazanet I am a Strategic Engineering Leader with over 8 years of experience building high-availability enterprise systems and scaling high-performing technical teams. My focus is on bridging the gap between complex technology and business growth. Core Expertise: 🚀 Leadership: Managing and coaching teams of 15+ engineers, fostering a culture of accountability and continuous improvement. 🏗️ Architecture: Enterprise Core Systems, Multi-system Integration (ERP/API/ETL), and Core Database Structure. ☁️ Cloud & Scale: AWS Expert; architected systems handling 10B+ monthly requests and managing 100k+ SKUs. 📈 Business Impact: Aligning tech strategy with P&L goals to drive $70k+ in monthly recurring revenue. I thrive on "out-of-the-box" thinking to solve complex technical bottlenecks and am always looking for ways to use automation to improve business productivity. BurnHavoc BurnHavoc Been around fixing other peoples code for 20 years. Dor Yaloz Dor Yaloz SW engineer with 6+ years of experience, I worked with React/Node/Python did projects with React+Capacitor.js for ios Supabase expert Krishna Sai Kuncha Krishna Sai Kuncha Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : ) AUXLE AUXLE I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies. prajwalfullstack prajwalfullstack Hi Im a full stack developer, a vibe coded MVP to Market ready product, I'm here to help Anthony Akpan Anthony Akpan Developer with 8 years of experience building softwares fro startups David Olverson David Olverson Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production. Mehdi Ben Haddou Mehdi Ben Haddou - Founder of Chessigma (1M+ users) & many small projects - ex Founding Engineer @Uplane (YC F25) - ex Software Engineer @Amazon and @Booking.com ISHANTDEEP SINGH ISHANTDEEP SINGH Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems.

You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.

Get Help

Frequently Asked Questions

Where should OAuth tokens be stored?

Store encrypted tokens in a platform-specific config directory (~/.claude-code on Unix, %APPDATA% on Windows). Never commit tokens to version control.

How often should tokens be refreshed?

Check token expiration at CLI startup and refresh if within 10 minutes of expiry. Implement automatic refresh during long-running sessions.

What encryption should be used for stored tokens?

Use AES-256-GCM encryption with a key derived from a system keychain or master password stored securely.

Related Claude Code Issues

Can't fix it yourself?
Real developers can help.

You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.

Get Help