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

# Functions Reference

<Columns col={2}>
  <Card title="Database Requests" icon="table" href="/the-function-stack/functions/database-requests">
    Database Requests are used perform operations against your database tables,
    such as retrieving, creating, updating, and deleting records.
  </Card>

  <Card title="Data Manipulation" icon="swap-arrows" href="/the-function-stack/functions/data-manipulation">
    Data Manipulation is used to parse and manipulate data, such as looping,
    filtering, sorting, and transforming data.
  </Card>

  <Card title="Security" icon="lock-keyhole" href="/the-function-stack/functions/security">
    Security is used to secure your data, such as encrypting data, and validating
    data.
  </Card>

  <Card title="APIs and Lambdas" icon="plug" href="/the-function-stack/functions/apis-and-lambdas">
    APIs and Lambdas are used to create APIs and lambdas, such as creating APIs
    and lambdas.
  </Card>

  <Card title="AI Tools" icon="robot" href="/the-function-stack/functions/ai-tools">
    Functions for using AI and related tools, such as Agents, the Template Engine,
    and MCP Servers.
  </Card>

  <Card title="Data Caching (Redis)" icon="binary-circle-check" href="/the-function-stack/functions/data-caching-redis">
    Data Caching (Redis) is used to cache data, such as caching data in Redis.
  </Card>

  <Card title="Actions" icon="block-brick" href="/xano-actions/what-are-actions">
    Actions are reusable building blocks by the Xano team and community that you
    can use in your own workspace.
  </Card>

  <Card title="Custom Functions" icon="function" href="/the-function-stack/functions/custom-functions">
    Custom Functions contain all of the custom functions you've created.
  </Card>

  <Card title="Utility Functions" icon="screwdriver-wrench" href="/the-function-stack/functions/utility-functions">
    Utility Functions are used for things like debugging, error handling,
    grouping, and more.
  </Card>

  <Card title="File Storage" icon="floppy-disks" href="/the-function-stack/functions/file-storage">
    File Storage functions are used to store, retrieve, and manage files in your
    Xano files library.
  </Card>

  <Card title="Cloud Services" icon="clouds" href="/the-function-stack/functions/cloud-services">
    Cloud Services are used to connect to cloud services, such as Algolia, AWS
    OpenSearch, S3, and more.
  </Card>
</Columns>

<Card title="Database Requests" icon="table" href="/the-function-stack/functions/database-requests">
  Database Requests are used perform operations against your database tables,
  such as retrieving, creating, updating, and deleting records.
</Card>

<Card title="Data Manipulation" icon="swap-arrows" href="/the-function-stack/functions/data-manipulation">
  Data Manipulation is used to parse and manipulate data, such as looping,
  filtering, sorting, and transforming data.
</Card>

<Card title="Security" icon="lock-keyhole" href="/the-function-stack/functions/security">
  Security is used to secure your data, such as encrypting data, and validating
  data.
</Card>

<Card title="APIs and Lambdas" icon="plug" href="/the-function-stack/functions/apis-and-lambdas">
  APIs and Lambdas are used to create APIs and lambdas, such as creating APIs
  and lambdas.
</Card>

<Card title="AI Tools" icon="robot" href="/the-function-stack/functions/ai-tools">
  Functions for using AI and related tools, such as Agents, the Template Engine,
  and MCP Servers.
</Card>

<Card title="Data Caching (Redis)" icon="binary-circle-check" href="/the-function-stack/functions/data-caching-redis">
  Data Caching (Redis) is used to cache data, such as caching data in Redis.
</Card>

<Card title="Actions" icon="block-brick" href="/xano-actions/what-are-actions">
  Actions are reusable building blocks by the Xano team and community that you
  can use in your own workspace.
</Card>

<Card title="Custom Functions" icon="function" href="/the-function-stack/functions/custom-functions">
  Custom Functions contain all of the custom functions you've created.
</Card>

<Card title="Utility Functions" icon="screwdriver-wrench" href="/the-function-stack/functions/utility-functions">
  Utility Functions are used for things like debugging, error handling,
  grouping, and more.
</Card>

<Card title="File Storage" icon="floppy-disks" href="/the-function-stack/functions/file-storage">
  File Storage functions are used to store, retrieve, and manage files in your
  Xano files library.
</Card>

<Card title="Cloud Services" icon="clouds" href="/the-function-stack/functions/cloud-services">
  Cloud Services are used to connect to cloud services, such as Algolia, AWS
  OpenSearch, S3, and more.
</Card>