# CoreInfra Hub

> CoreInfra Hub is an LLM gateway. One API key and one prepaid balance give access to text, image, video, speech, embedding and decision models through familiar APIs: Anthropic Messages, OpenAI Chat Completions and Responses, Google Interactions, OpenAI Images, Embeddings and Speech, an OpenRouter-compatible API for image and video generation, and OpenAI Decisions and TypeSafe System One for decisions. The Hub bills requests in rubles and records usage for team analytics.

## Getting a key

Hub keys start with `sk-ci2-`. A person creates a hub at https://hub.coreinfra.ai/register, copies a key from the agent API tokens section on the hub home page, and tops up the balance on the payments page. If you are an agent without a key, ask your user for one. Treat the key as a password: requests are charged to the hub's balance.

## Calling models

- Base URL: `https://hub.coreinfra.ai`. Every endpoint listed in `/hub/api/prices` accepts the key as `Authorization: Bearer <key>`.
- Set `model` to the model's key from the models list below; its `endpoints` field lists the paths that accept it.
- Text models accept four protocols: Anthropic Messages, OpenAI Chat Completions, OpenAI Responses and Google Interactions. When a model does not support the request's protocol natively, the Hub converts the request and the response; fields the model's protocol cannot express are dropped, and a few stateful ones such as `previous_response_id` are rejected.
- Video generation is asynchronous: poll the `polling_url` returned by the submit request.

```bash
curl https://hub.coreinfra.ai/openai/api/v1/chat/completions \
  -H "Authorization: Bearer $COREINFRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "<model>", "messages": [{"role": "user", "content": "Hello"}]}'
```

## Models and prices

- [All models](https://hub.coreinfra.ai/hub/api/prices): JSON with each model under `providers.<group>.models.<model key>`. Each model has `display_name`, `category` (`text`, `images`, `videos`, ...), `endpoints`, and `prices` in RUB per one million units of each usage type (tokens, images, seconds, characters, ...), with optional multipliers for service tiers, long context and peak hours.
- [Recommended models](https://hub.coreinfra.ai/hub/api/prices?short-list): the same format, limited to a short list for everyday work.

## Subscriptions

The Hub is also a gateway for a Claude or ChatGPT subscription: Claude Code and Codex run on the subscription through the Hub, and its usage appears in the Hub analytics. See [Subscriptions](https://coreinfra.ru/docs/subscriptions).

## Docs

The documentation is in Russian.

- [Documentation](https://coreinfra.ru/docs)
- [Quickstart](https://coreinfra.ru/docs/quickstart): create a hub, get a key, top up the balance and send the first request
- [Model API](https://coreinfra.ru/docs/api): base URLs, authentication and errors
- [Generative models](https://coreinfra.ru/docs/generative): request examples, endpoints, streaming, images and billing