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

# API patterns and tools

> API patterns and tools that keep Lerian integrations stable, scalable, and maintainable as the platform evolves.

Seamless integration and smooth operation are at the core of Lerian's platform. Whether you're developing a new application or refining an existing one, it's essential to understand the key mechanisms that keep interactions reliable and efficient.

This section breaks down the best practices that ensure your integrations are stable, scalable, and easy to maintain.

## Available pages

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<div className="space-y-6 w-full sm:max-w-4xl">
  <Columns cols={2}>
    <Card title="Retries and idempotency" icon="rotate-right" href="/en/reference/retries-idempotency">
      Ensure safe retries and prevent duplicate transactions using idempotency keys.
    </Card>

    <Card title="Metadata" icon="tags" href="/en/reference/metadata">
      Structure and optimize data use with custom metadata fields.
    </Card>

    <Card title="Pagination" icon="layer-group" href="/en/reference/pagination">
      Manage large datasets efficiently while keeping performance high.
    </Card>

    <Card title="Tolerant reader" icon="shield-halved" href="/en/reference/tolerant-reader">
      Build integrations that adapt to changes without breaking.
    </Card>

    <Card title="Default network ports" icon="network-wired" href="/en/reference/default-network-ports">
      Check the default ports used by Midaz and the plugins.
    </Card>

    <Card title="Postman integration" icon="paper-plane" href="/en/reference/postman-integration">
      Use our Postman collection to interact with our APIs.
    </Card>
  </Columns>
</div>