Zukko Blog
Guides to Claude Code, Cursor, Codex and the Claude and GPT APIs: setup, token savings and troubleshooting.
How to pay for the DeepSeek API from Russia: options and steps
5 min · · payments
Two ways to pay for the DeepSeek API from Russia: directly at the provider and through a gateway. Amounts, fees with calculations and a step-by-step guide to the first request.
Claude on Android in Russia: what to do if the app won't install
5 min · · models
If the official Claude app won't install on Android in Russia, you can still use the model from your phone: through the gateway's web chat or a client with your own key.
Buying an AI API key: what you actually buy and what you risk
5 min · · API keys
Listings that say "buy a ChatGPT API key" sell different things. We explain the difference between someone else's key and your own key with a balance, and give a checklist.
Cursor AI setup: models, your own key, rules and indexing
6 min · · IDE
A step-by-step Cursor setup: your own key with the gateway address, models, project rules, context exclusions and a connection check. What to do on day one.
LangChain4j: connect a Java app to Claude and GPT via a gateway
4 min · · development
LangChain4j works with any OpenAI-compatible address. Build setup, chat, streaming and an AI Service with @Tool on the Zukko gateway.
An AI agent for marketplaces: product cards, reviews and replies
4 min · · автоматизация
Seller tasks you can hand to a model through an API: product cards, review replies, return-reason analysis. Pipeline, code and a cost estimate for 5,000 reviews as an example.
Checking documents with AI: a checklist of errors it finds well
5 min · · бизнес
A checklist of checks that are convenient to give a model, and the ones that are not. Plus short code: rule checks in code, semantic findings from the model.
Codex limits: why they run out and how to keep working
6 min · · errors
Codex subscription limits are consumed by OpenAI's rules and cannot be reset. What drives usage, and how to continue on a key with a dollar limit.
Claude Code through OpenRouter or the Zukko gateway: setup and differences
6 min · · IDE
Claude Code connects to both services through an Anthropic-compatible entry point. We show the configs side by side, the differences in model names, the connection check, and how cache affects the bill.
Legal documents with AI: drafting claims, letters and contracts
5 min · · бизнес
How to get a clean draft of a claim or letter from a model: source data, a template, a ban on invented citations and mandatory human review.
Vibe coding apps: from idea to a working MVP with an agent
6 min · · development
A practical route for building a small web app with an agent, from the idea to deployment. Where a human is required, and what it costs.
Vibe coding downsides: a risk checklist and how to reduce them
5 min · · агенты
Vibe coding speeds up prototypes, but it has a price. A checklist of nine risks with a practical measure for each and a calculation of possible losses.
Codex on Windows: native and WSL install with a gateway
5 min · · development
Codex CLI runs on Windows natively or inside WSL. Installation, where config.toml lives, connecting a Zukko key, and what to do when it fails.
Cline or Kilo Code: how they differ and which to choose
7 min · · сравнение
Both are VS Code agents that accept your own key. Where their modes, default providers and approach to multitasking differ, and what that costs.
API for Qwen: connecting Qwen 3.8 Max, pricing and Python examples
4 min · · models
Connect qwen3.8-max through the OpenAI SDK, send images, feed a long document and calculate the price of a typical request by formula.
OpenCode Zen API key or your own provider: what to pick and how to pay
6 min · · агенты
Zen is a ready-made model catalog from the opencode team. A custom provider is your own key and your own endpoint. When to use which, and how to pay from Russia.
Dify vs n8n: LLM apps versus process automation
6 min · · автоматизация
Dify and n8n are often placed side by side though they solve different problems. We cover when you need an LLM app builder and when you need integration flows.
Vibe coding on Android: how to program with AI from a phone
5 min · · development
A phone will not replace a laptop, but vibe coding from it is possible: the agent runs on a server and you drive it over SSH or a web chat. What you need and where the limit is.
OpenRouter: what the service is and who it suits in 2026
6 min · · сравнение
OpenRouter offers one API and one balance for many models from different providers. We cover how it works, its fees and limits, and when another gateway is more convenient.
Qwen Code with a local model through Ollama: pros and limits
5 min · · сравнение
Qwen Code can connect to Ollama so your code never leaves the machine. Setup, the limits of local models and a money comparison with a cloud API.
RAG for 1C: searching documentation and configuration code with AI
5 min · · бизнес
Build an assistant that answers questions about your configuration and internal rules with a source reference. Python code and a per-query cost estimate.
Cline in JetBrains: Installing in IntelliJ IDEA and PyCharm
6 min · · IDE
The Cline plugin is in the JetBrains Marketplace. Installation, provider setup with the gateway address, auto-approve and a fallback via ACP.
How to pay for the OpenAI API from Russia: why it fails and what to do
5 min · · payments
Paying an OpenAI account directly from Russia is not available. A working replacement: a gateway balance and the same OpenAI SDK code with two lines changed.
MCP servers for Cursor: how to connect them without overloading context
6 min · · IDE
Connecting MCP servers in Cursor through mcp.json, the types of servers and ways to store tokens. Plus how extra tools eat context and money.