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

# VAULT Service

> Crypto payment processor

## Overview

VAULT is Null Pass's crypto payment processor service. Users can manage crypto payments, API keys and much more.

## Service Identifier

```
VAULT
```

## Entitlement Fields

<ResponseField name="tier" type="string" default="free">
  Access tier: "free", "premium", "enterprise"
</ResponseField>

<ResponseField name="isPremium" type="boolean" default="false">
  Premium access flag
</ResponseField>

<ResponseField name="customStorageLimit" type="number">
  Custom storage limit in bytes (null for default tier limits)
</ResponseField>

<ResponseField name="customApiKeyLimit" type="number">
  Custom API key limit (null for default tier limits)
</ResponseField>

## Related Endpoints

<Card title="Service Access" icon="server" href="/api-reference/services/access">
  Manage VAULT service entitlements
</Card>

<Card title="Webhooks" icon="webhook" href="/api-reference/webhooks/vault">
  VAULT subscription webhooks
</Card>