Zukko Blog
Guides to Claude Code, Cursor, Codex and the Claude and GPT APIs: setup, token savings and troubleshooting.
Claude Code vs Cursor: How They Differ and What to Pick
3 min · · claude-code
Claude Code lives in the terminal, Cursor in the editor. Where each tool fits and how to connect both through one gateway.
How to Reduce Token Usage in Claude Code
3 min · · claude-code
The bill grows not from the number of tasks but from the context sent with each request. Here are practices that remove unnecessary tokens.
Claude Code slash commands worth using
3 min · · claude-code
A walkthrough of the built-in Claude Code slash commands and how to package your own for the requests you type every day.
Codex or Claude Code: comparing console agents
2 min · · codex
Both live in the terminal and edit code, but they are built differently. The differences that show up in use.
Connecting Claude Code to an existing project
3 min · · claude-code
A first run of the agent in an unfamiliar repository: what it reads, how to set boundaries, and how a project instructions file helps.
Claude Code keeps asking to log in to Anthropic
2 min · · claude-code
Claude Code insists on signing in to Anthropic even though your key is configured. One environment variable is to blame.
Base URL with or without /v1 — which client needs what
2 min · · setup
The same gateway needs different base URLs in different clients. Getting the suffix wrong yields a 404 with no useful explanation.
Claude Code from scratch: install and configure with your own key
3 min · · claude-code
Installing Claude Code and configuring it to run on your own API key, step by step, including the mistakes almost everyone makes.
Claude Code without a subscription: connecting via API key
3 min · · claude-code
Claude Code works with a plain API key, not only with a subscription. Then you pay for the tokens you used, not for a month.