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

# End User Onboarding API

> Create and manage onboarding applications for business customers.

Create Know Your Business (KYB) applications for your customers. Add data,
upload files, and submit for review—all in one REST API.

<Warning>
  End User Onboarding API access is enabled per account. Contact your [Circle
  representative](mailto:sales@circle.com) to get sandbox and production access
  before calling the API.
</Warning>

## Get started

<CardGroup cols={2}>
  <Card title="End User Onboarding documentation" icon="book" href="/end-user-onboarding">
    Learn how the onboarding flow works.
  </Card>

  <Card title="Application states" icon="diagram-project" href="/end-user-onboarding/references/application-states">
    See how applications change state.
  </Card>
</CardGroup>

## Endpoint categories

<CardGroup cols={2}>
  <Card title="Partner clients" icon="users" href="/api-reference/end-user-onboarding/create-partner-client">
    Create and retrieve the businesses you onboard.
  </Card>

  <Card title="Partner applications" icon="file-lines" href="/api-reference/end-user-onboarding/list-applications">
    Track applications from draft to final review.
  </Card>

  <Card title="Partner documents" icon="file-arrow-up" href="/api-reference/end-user-onboarding/list-documents">
    Upload and manage compliance documents.
  </Card>

  <Card title="Partner RFIs" icon="clipboard-check" href="/api-reference/end-user-onboarding/list-rfis">
    Respond to compliance team requests and resubmit data.
  </Card>

  <Card title="Partner sections" icon="table-list" href="/api-reference/end-user-onboarding/list-sections">
    Read and save sections of an application.
  </Card>
</CardGroup>