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dsh-claude-oauth

Claude Pro/Max OAuth model provider for DeepSeek Harness with Google/Gmail login in Settings, auto-token refresh, live model discovery, and real-time quota tracking

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Created
Sep 6, 2026
Updated
Sep 6, 2026
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Introduction

dsh-claude-oauth

npm version License: MIT DSH Compatibility Author

Claude Pro / Max OAuth integration for DeepSeek Harness (DSH) — sign in directly with your Google / Gmail account from the DSH Web Settings page, with automatic token rotation, live model discovery, and real-time 5-hour / 7-day subscription quota tracking.

English · 简体中文 · Technical Article

Preview

Claude Settings UI

Key Features

  • 🚀 One-Click Google / Gmail Sign-In in Settings: Dedicated Claude section in DSH Settings (order: 13, beside Antigravity and Codex). Click "Sign in with Google / Gmail" to authenticate directly in your browser.
  • ⚡ Zero Terminal Hassle: No manual CLI token dumping, copying strings, or editing YAML config files.
  • 🔄 Dual-Stack PKCE OAuth Engine: Ephemeral loopback callback server listening on dual-stack IPv4 (127.0.0.1) and IPv6 (::1), avoiding Windows localhost resolution traps.
  • 🛡️ Multi-Store Credential Sync: Exchanged tokens automatically sync to:
    • ~/.claude/.credentials.json (shares authorization with the official Claude Code CLI)
    • ~/.dsh/.credentials.yaml (ANTHROPIC_OAUTH_TOKEN and CLAUDE_CODE_OAUTH_TOKEN)
    • ~/.dsh/settings.yaml (configures llm-pi-ai.providers.anthropic with active models)
  • 📊 Live Subscription Quota Meters: Displays real-time 5-hour and 7-day quota utilization bars with reset countdowns in both Settings and the ambient chat composer dock.
  • 🤖 Live Model Catalog: Queries GET /v1/models dynamically. All latest Claude releases (Claude 3.7 Sonnet, Claude Sonnet 4.5, Claude Opus 4.5, Claude Haiku 4.5) mount automatically.

Architecture Flow

OAuth Architecture Flow

Quick Start

Installation

Install dsh-claude-oauth into your active DSH Web profile:

# From GitHub repository
dsh plugin --profile web add github:grloper/dsh-claude-oauth

# Or from local checkout
dsh plugin --profile web add ./dsh-claude-oauth

Sign In via Web Settings

  1. Start or open DeepSeek Harness Web GUI: 
    dsh web
  2. Open Settings (gear icon on the sidebar).
  3. Select the Claude section from the navigation list.
  4. Click "Sign in with Google / Gmail".
  5. In the opened browser window, choose "Continue with Google", pick your Gmail account, and click Authorize.
  6. The tab will display "Claude Connected". Return to DSH — your account email, tier (CLAUDE PRO or CLAUDE MAX), live quota bars, and models are now active!

Optional: Sign In via CLI

You can also authenticate directly from the command line using the bundled bin script:

claude-oauth-login
# Or via npx
npx dsh-claude-oauth

Setting Claude as Default Agent Model

To make Claude Sonnet 4.5 your default model for all sessions:

In ~/.dsh/settings.yaml:

agent-default-model:
  provider: anthropic
  model: claude-sonnet-4-5

Or pick Claude per-session from the composer model selector.

Verification & Testing

Run the included test suite:

npm run check
npm test

License

MIT © 2026 grloper