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

# Subscription & Billing

> A monthly plan with included credits, plus usage-based overage.

AgentKey bills through a **subscription**. Each plan includes a monthly **credit
allowance** shared across every service your agent uses. If you use up your
allowance before the month ends, additional usage is billed as **overage** at
per-credit rates — your agent keeps working without interruption.

## How it works

<CardGroup cols={3}>
  <Card title="One plan" icon="wallet">
    A single subscription covers every service — no per-provider signups or
    invoices.
  </Card>

  <Card title="Monthly credits" icon="coins">
    Your plan includes a credit allowance that resets each billing cycle.
  </Card>

  <Card title="Overage beyond it" icon="trending-up">
    Past your allowance, usage is billed per credit — no hard cutoff, no
    interruption.
  </Card>
</CardGroup>

Each tool has a known per-call cost in credits, surfaced when you describe it.
Calls draw down your monthly allowance first, then bill as overage.

## See the cost before you spend

Every `find_tools` and `describe_tool` result includes the per-call cost in
credits. Before any bulk work, multiply that cost by your planned call count, and
check your remaining allowance with the free
[`account`](/api-reference/account) tool.

<Tip>
  For work involving several calls or a meaningful credit estimate, confirm the
  plan and cost with the user before proceeding.
</Tip>

## Managing your plan

Choose or change your plan, set overage limits, and review usage from the
[console](https://console.agentkey.app). The `account` tool returns your
remaining credits and upstream health at any time — and never costs credits to
call.

<Note>
  Plan tiers, included allowances, and overage rates are shown in the
  [console](https://console.agentkey.app); each tool's per-call cost appears in
  its describe output.
</Note>