Zukko Blog

Guides to Claude Code, Cursor, Codex and the Claude and GPT APIs: setup, token savings and troubleshooting.

Translating games with AI: localizing strings without broken tags

5 min · · автоматизация

How to translate thousands of game strings without breaking placeholders, tags or UI layout: batch format, checks, retries and cost.

MCP server for web search: how to give an agent access to the web

6 min · · агенты

A model only knows what was in its training data. Here is how to connect web search through MCP, how the options differ and how many tokens the results take.

AI for a WordPress site: theme, plugin and edits with an AI agent

5 min · · development

A working process: a local copy of the site, a terminal agent, WordPress rules, code checks and safe storage of the API key.

AI for HTML and CSS: layout from a description or a screenshot

5 min · · development

How to get a model to write markup without junk divs and broken responsiveness: prompt, mockup screenshot input, a Python script and result checks.

An MCP server for Jira: tasks and comments straight from the agent

6 min · · агенты

We connect the official Atlassian MCP server to Claude Code: JQL search, comments, access rights and safe token handling.

Vibe coding a game: building a browser game with an AI agent

4 min · · агенты

Step by step we build a simple JavaScript game with the Claude Code agent: how to phrase the mechanics, how to iterate, which bugs to catch and what a session costs.

A neural-network chat on Gradio: a streaming UI in an hour

5 min · · development

We build a Gradio chat web UI where the reply streams in, you can pick a model and a system prompt, and every answer shows its cost in dollars.

A neural network for Excel macros: VBA code from a task description

5 min · · автоматизация

How to phrase a task for the model to get a working VBA macro, how to test it on a copy of the file and what to do about Run-time errors.

Windsurf vs Cursor: comparing AI editors by verifiable traits

6 min · · IDE

We compare Windsurf and Cursor on what can be verified: agent modes, Tab, rules, MCP and bringing your own key, with an honest note where the docs are silent.

Formatting documents to GOST with a neural network: what AI can and cannot do

5 min · · автоматизация

The model helps with structure, bibliography and captions, but margins, fonts and spacing are better set by a template. A division of labour and a .docx assembly example.

How much the Gemini API costs: 3.8 Flash and 3.7 Flash calculated on examples

6 min · · экономия

A price table for Gemini 3.8 Flash and 3.7 Flash and three calculations with formulas: a chatbot, bulk classification and a long document, with and without cache.

A GPT chatbot in Russian: how to use GPT and Claude models in the browser

5 min · · models

What a GPT chatbot is, how to open a Russian-language chat with GPT and Claude models without a subscription, how to choose a model and what ten messages cost.

opencode: what this agent is and how to connect your own models

5 min · · агенты

opencode is an open-source coding agent for the terminal that is not tied to one model vendor. Install, first commands and connecting a key.

Gemini API: what it is, which models are available and how to call it

6 min · · API keys

What the Gemini API is, which Gemini models are available, how the native format differs from the OpenAI-compatible one, and a first request.

How to pay for the Qwen API from Russia: a gateway instead of an Alibaba Cloud card

5 min · · payments

The official Qwen API is provided by Alibaba Cloud with its own payment terms. Here is another path, a gateway balance: top-up, key, request and a price calculation with the fee.

AI for a Tilda website: copy, HTML blocks and page structure

5 min · · бизнес

AI will not assemble a Tilda site in a minute, but it helps with block copy, page structure and code for embeds. Working techniques and pitfalls.

opencode or Claude Code: two terminal agents and how they differ

5 min · · агенты

Both read your project, edit files and run commands in the terminal. We compare how they connect to models, where settings live, how agents and MCP work, and what it costs.

Claude Sonnet: what it is for and which version to pick in 2026

5 min · · models

What Claude Sonnet is, which tasks it usually gets and how versions 5.5, 5 and 4.6 differ in price, context and index. With a calculation and a test script.

Claude Projects: What They Are and How to Build the Same Workflow via API

5 min · · API keys

Projects in claude.ai store instructions, documents and chat history. Through the API the same is built from a system prompt, documents in context and a cache.

Claude API error: Anthropic-format error types and what to do

5 min · · errors

A table of Messages API errors: what each type means, which HTTP code arrives through the gateway, what to retry with a pause and what to fix in the request.

Claude Desktop for Linux: Is There a Version and What to Use Instead

5 min · · IDE

An official Linux beta exists, but only for the Debian family. Its limits and alternatives for other distributions.

Rate limits in an API: the kinds of limits and a client built for them

5 min · · API keys

What a 429 really means, how RPM differs from TPM and burst, and how to write a client that stays under limits and does not retry what cannot be retried.

Dify: what this platform is and how to connect your own models

6 min · · автоматизация

Dify builds chatbots, workflows and agents in a visual editor. We cover app types, the knowledge base, publishing and connecting models through an OpenAI-compatible API.

Gemini CLI or Claude Code: comparing terminal coding agents

6 min · · агенты

Gemini CLI and Claude Code compared by models, custom provider support, access from Russia and cost, plus how to run Gemini through a gateway.