Claude Code in VS Code: How to Connect and Verify the Integration
Separate the Claude Code CLI, VS Code extension, and API endpoint layers to configure and verify the integration correctly.
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Technical deep-dives, architectural patterns, and industry updates for the modern AI engineer.
Claude Code Subscription vs API Billing: Costs, Setup, and Choice
Choose the right way to pay for Claude Code without mixing up three separate billing systems. Compare Pro and Max subscriptions, the official Claude Console API, and a third-party Anthropic-compatible gateway; verify regions and current token prices; configure BetterToken safely; and measure real task costs before committing.
Read Technical ReportClaude Opus 5.5 API: First Request and 400 Error Fixes
Create a BetterToken API key, send a minimal Claude Opus 5.5 Messages request, and diagnose 400 errors involving the model ID, max_tokens, thinking, and tool_choice.
Read Technical ReportRate Limits in Claude Code: Subscription Limits vs API 429s
Use authentication, response codes, usage data, and request IDs to separate subscription limits, API 429s, and provider errors.
Read Technical ReportGPT Image 2: Your First Image API Request
Send your first GPT Image 2 request through BetterToken, save the b64_json image, and troubleshoot key, model, and balance errors.
Read Technical ReportCodex CLI vs Codex App vs VS Code Extension: Which One Should You Use?
A practical comparison of Codex CLI, the Codex view in the ChatGPT desktop app, and the Codex IDE extension. Learn what each interface is best at, how worktrees and automation differ, whether they share a subscription, and which one fits terminal work, daily editing, parallel agents, SSH, or CI.
Read Technical ReportCan You Use Claude Code for Free? Installation, Subscription, and API Access
Claude Code is free to install, but model requests require a paid Claude plan, API billing, or a supported third-party provider.
Read Technical ReportInstall Codex CLI and Complete Your First Safe Run
A current installation and first-run guide for Codex CLI, including official sign-in, custom provider setup, verification, and troubleshooting.
Read Technical ReportClaude Code in Russia Without a VPN: BetterToken Setup
Connect Claude Code to BetterToken from Russia without a VPN for API requests. Pay in rubles, use your own API key, and check your first project task.
Read Technical ReportHow to Use Claude Code for Office Work: 8 Automation Scenarios
Eight practical Claude Code scenarios for spreadsheets, PDFs, contracts, and reports — what it automates well, where it breaks, and when a human still has to decide.
Read Technical ReportInstalling Claude Code: Native vs npm, Fixing PATH, and First Run
A practical guide to installing Claude Code: comparing Native Install and npm, verifying binaries, fixing PATH and command not found errors, and running your first safe coding session.
Read Technical ReportClaude Cowork vs Chat vs Code: What to Use and How to Start
A practical guide to choosing between Claude Chat, Cowork, and Code, then running and checking a low-risk first Cowork task.
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