# Zukko

> Zukko is an AI API gateway: one API key (fetch_*) gives access to Claude, GPT and GLM models through OpenAI-compatible and Anthropic-compatible endpoints. It works with Claude Code, Cursor, Codex and any OpenAI or Anthropic SDK. Billing is pay-as-you-go per token, with no Anthropic or OpenAI subscription required; top-ups are available from Russia (SBP, Russian bank cards, USDT).

Website: https://zukko.pro (Russian), https://zukko.pro/en (English)
API host: https://api.zukko.pro

## Connecting

- OpenAI format (Chat Completions, Responses, Images, Models): base URL `https://api.zukko.pro/v1`
- Anthropic format (Messages API, Anthropic SDK, Claude Code): base URL `https://api.zukko.pro` (no `/v1` suffix; the SDK or Claude Code adds the path)
- Auth header: `Authorization: Bearer fetch_YOUR_KEY` (the same key works for both formats; Anthropic-format requests also send `anthropic-version`)
- Claude Code: set `ANTHROPIC_BASE_URL=https://api.zukko.pro` and `ANTHROPIC_AUTH_TOKEN=fetch_YOUR_KEY`
- Keys are created in the dashboard: https://zukko.pro/app/api-keys

## Models

Currently enabled model ids:

- claude-opus-5-5 (Claude Opus 5.5)
- claude-sonnet-5 (Claude Sonnet 5)
- gpt-5.6-sol
- gpt-5.6-luna
- glm-5.3
- glm-5.3-flash

The list changes over time. The live list is `GET https://api.zukko.pro/v1/models`.

## Pricing

- Pricing overview: https://zukko.pro/#pricing (EN: https://zukko.pro/en#pricing)
- Per-model prices: https://zukko.pro/app/models
- Business and reseller terms: https://zukko.pro/commercial (EN: https://zukko.pro/en/commercial)

## Docs

- Introduction: https://zukko.pro/docs/introduction/introduction (EN: https://zukko.pro/en/docs/introduction/introduction)
- Quick start: https://zukko.pro/docs/introduction/quick-start (EN: https://zukko.pro/en/docs/introduction/quick-start)
- For beginners: https://zukko.pro/docs/introduction/for-beginners (EN: https://zukko.pro/en/docs/introduction/for-beginners)
- Choosing OpenAI vs Anthropic format: https://zukko.pro/docs/ide-integrations/choose-provider (EN: https://zukko.pro/en/docs/ide-integrations/choose-provider)
- Claude Code: https://zukko.pro/docs/ide-integrations/claude-code (EN: https://zukko.pro/en/docs/ide-integrations/claude-code)
- Cursor: https://zukko.pro/docs/ide-integrations/cursor-ide (EN: https://zukko.pro/en/docs/ide-integrations/cursor-ide)
- Codex: https://zukko.pro/docs/ide-integrations/codex (EN: https://zukko.pro/en/docs/ide-integrations/codex)
- Authentication: https://zukko.pro/docs/api-reference/authentication (EN: https://zukko.pro/en/docs/api-reference/authentication)
- Chat Completions: https://zukko.pro/docs/api-reference/chat-completions (EN: https://zukko.pro/en/docs/api-reference/chat-completions)
- Messages (Anthropic): https://zukko.pro/docs/api-reference/messages (EN: https://zukko.pro/en/docs/api-reference/messages)
- Models: https://zukko.pro/docs/api-reference/models (EN: https://zukko.pro/en/docs/api-reference/models)
- Python examples: https://zukko.pro/docs/api-reference/python (EN: https://zukko.pro/en/docs/api-reference/python)
- All docs: https://zukko.pro/docs (EN: https://zukko.pro/en/docs)

## Full knowledge pack (for loading into an AI)

- Markdown RU: https://zukko.pro/docs/pack?format=md&lang=ru
- Markdown EN: https://zukko.pro/docs/pack?format=md&lang=en
- Plain text: https://zukko.pro/docs/pack?format=txt&lang=ru

## Blog

- Guides and troubleshooting (RU): https://zukko.pro/blog
- English: https://zukko.pro/en/blog

## Contact

- Telegram: https://t.me/zukkopro