> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hopscotchlabs.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Uniblock Gateway

> An OpenAI-compatible LLM router. Change one base URL and one API key, keep your OpenAI SDK, and call models across providers on one prepaid balance.

Uniblock Gateway is an OpenAI-compatible LLM router. You change one base URL and
one API key, keep the OpenAI SDK you already use, and call models across
providers on a single prepaid balance. We hold the provider accounts and meter
the requests, so you never hold a provider credential.

## The two lines that change

Point your existing client at `https://ai.uniblock.dev` and give it a Uniblock
key. Nothing else in your code moves.

```python Python {2-3} theme={null}
client = OpenAI(
    base_url="https://ai.uniblock.dev/v1",
    api_key="ub_live_YOUR_KEY_HERE",
)

response = client.chat.completions.create(
    model="openai/gpt-4o-mini",
    messages=[{"role": "user", "content": "Say hi in five words."}],
)
```

Model ids are `provider/model`, so the id you send says which provider serves it. A bare model
name with no provider is refused rather than routed for you.

## What it costs

Credit is prepaid. A platform fee of 2.5% is added when you buy credit, and
requests take the provider's rate at face value with no markup on top. Buying
100 credits charges 102.50 and grants 100 credits, all 100 of which are
spendable. The 2.5% rate is the current rate rather than a permanent one, and
the rate that applies to a purchase is fixed when you start checkout.

## Start here

<CardGroup cols={2}>
  <Card title="Quickstart" icon="player-play" href="/get-started/quickstart">
    Get a key, set the base URL, and send your first chat completion.
  </Card>

  <Card title="OpenAI compatibility" icon="plug" href="/get-started/openai-compatibility">
    Which endpoints exist today, what is additive, and what is refused.
  </Card>

  <Card title="Authentication" icon="key" href="/get-started/authentication">
    Key format, the Bearer header, shown-once keys, and revocation.
  </Card>

  <Card title="API reference" icon="code" href="/api-reference/introduction">
    The wire contract: endpoints, headers, and the error envelope.
  </Card>
</CardGroup>

## What is not here

There is no self-hosted or downloadable version of the gateway. The product is
hosted: we hold the provider accounts, meter the requests, and sell prepaid
credit, and none of that works from a copy running somewhere else.

There is no static list of providers or models on this site, because that set is
a live fact rather than a documentation fact. Ask
[`GET /v1/models`](/api-reference/introduction) or read the model list in the
[dashboard](https://app.uniblock.dev) instead of a page that would go stale.