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

# How to Subscribe to an API Product in Palladium AI

> Learn how to browse API products, choose a plan, and complete your subscription in the Palladium AI marketplace to unlock API access for your team.

Subscribing to an API product gives your team an active plan and provisions an API key you can use to authenticate requests immediately. The process takes only a few steps: browse the marketplace, pick the plan that matches your usage needs, and confirm at checkout. This guide walks you through each step.

<Steps>
  <Step title="Open the marketplace">
    Navigate to your team workspace and select **APIs** from the sidebar. This opens the API Marketplace at `/dashboard/[teamId]/apis`, where all available products — both built-in and custom — are listed.
  </Step>

  <Step title="Browse products">
    Scroll through the product catalog to find the API you need. Built-in products (Risk Score API, KYC Verify API, and Ledger Events API) are always available. Products published by your platform owner appear with a **Custom** badge.
  </Step>

  <Step title="Review plans">
    Expand a product to view its **plans table**. Each row shows the plan name, monthly price, quota (calls/month), rate limit (calls/min), and billing mode (Free, Fixed, or Metered). Compare rows to find the plan that suits your team's expected call volume and budget.
  </Step>

  <Step title="Select a plan">
    Click **Select → billing** on the plan row you want. You are taken to the billing checkout page with your chosen product and plan pre-filled.
  </Step>

  <Step title="Complete checkout">
    Review your subscription parameters on the checkout page — product name, plan name, and pricing. Confirm the subscription to activate your plan. Your new subscription will be listed under **My Subscriptions** in the marketplace.
  </Step>
</Steps>

<Note>
  Free plans activate immediately with no payment details required. Paid plans will prompt for payment information at checkout.
</Note>

## After subscribing

Once your subscription is active, an API key is provisioned for that product and plan. You can find your key under **APIs → My Subscriptions** in your team workspace. Use it in the `Authorization` header of every request you make to the product's endpoints.

<Card title="Using your API key" icon="key" href="/marketplace/api-keys">
  Learn how to locate your API key, include it in requests, and understand key lifecycle behaviour.
</Card>