# Agent checkout

> ACP and UCP checkout sessions over an orders cart with idempotency keys, and AP2 checkout mandates verified with signing keys and used once.

- Category: Billing & commerce
- Module: `agent-checkout`
- Modes: `managed`, `custom`
- Docs: https://bettersupabase.com/docs/blocks/agent-checkout
- Page: https://bettersupabase.com/blocks/agent-checkout

## Install

```bash
npx better-supabase add agent-checkout
```

The command also installs `updated-at`, `memberships`, `permissions`.

## Configure

Add the block to `better-supabase.config.ts`:

```ts
import { defineConfig } from "better-supabase/config";

export default defineConfig({
  blocks: {
    // Required by agent-checkout; add installs them too.
    "updated-at": {},
    memberships: {},
    permissions: {},
    // Modes: "managed", "custom". The default is "managed".
    "agent-checkout": { mode: "managed" },
  },
});
```

## Client

The block has no React entry yet. Its server-side TypeScript is in `better-supabase/blocks/agent-checkout`.

## Events

- `agent_mandate.consumed`
- `agent_mandate.created`
- `agent_mandate.revoked`
- `checkout_session.completed`
- `checkout_session.created`
- `checkout_session.updated`

## Related blocks

Requires: [memberships](https://bettersupabase.com/blocks/memberships.md), [permissions](https://bettersupabase.com/blocks/permissions.md)

Works with: [orders](https://bettersupabase.com/blocks/orders.md), [outbox](https://bettersupabase.com/blocks/outbox.md), [audit](https://bettersupabase.com/blocks/audit.md)