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

# Your first run

> Write a prompt and run it — no API key required.

Once you're signed in, you can test a prompt right away. **You don't need an API key
to start** — your account comes with a credit wallet and access to Viorant's managed
models.

<CardGroup cols={2}>
  <Card title="Start with credits" icon="coins" href="/providers/credits">
    Every account gets **2,500 credits**, once. Pick a Viorant tier and run — no card,
    no key, no setup.
  </Card>

  <Card title="Or bring your own key" icon="key" href="/providers/byok">
    Add your OpenAI, Anthropic, Google, or other provider key in the Model Master.
    Keys live in your OS credential store and never leave your machine — and cost no
    credits.
  </Card>
</CardGroup>

## Run a prompt in three steps

<Steps>
  <Step title="Create a prompt in your Space">
    Add a new prompt to your [Space](/concepts/spaces) and write a system instruction —
    e.g. *"You are a concise assistant. Answer in one sentence."* It opens in the
    [Prompt](/masters/prompt) editor.
  </Step>

  <Step title="Pick a model">
    In the Test panel, choose a model. Use a **Viorant** tier — **Medium** or **Low** —
    to run on credits, or [add your own provider key](/providers/byok) and pick one of
    yours.
  </Step>

  <Step title="Test it">
    Send a message and watch the response stream back live. Switch between
    single-shot and chat to see how the prompt behaves.
  </Step>
</Steps>

<Tip>
  Start on **Low** while you're iterating on wording — it's the cheaper tier and
  usually enough to tell whether a prompt is heading the right way. Move up to
  **Medium** for the runs that matter.
</Tip>

## Keeping an eye on credits

Your balance sits next to your profile. For the breakdown, open the profile menu and
choose **Usage** — you'll see a day-by-day history and can expand any date to see the
individual runs behind it.

If the balance reaches zero, managed models stop and the Hub prompts you to
[add your own key](/providers/byok), which has no credit cost.

## Where to go next

<CardGroup cols={2}>
  <Card title="Understand the building blocks" icon="lightbulb" href="/concepts/agents">
    Agents, the Masters, Skills, Connectors, and Models.
  </Card>

  <Card title="Compose an agent" icon="robot" href="/masters/agent">
    Combine a prompt, a model, and skills into one runnable agent.
  </Card>
</CardGroup>