# Quantum Partner API Documentation

The Quantum Partner API is a RESTful API that enables you to integrate lending capabilities into your platform. The API provides:

- **Application Lifecycle Management** — Submit loan applications, upload supporting documents, retrieve and accept offers, and track applications through underwriting to funding
- **Account Management** — Manage booked accounts including requesting draws from lines of credit, processing payments, and viewing transaction history
- **Webhooks** — Receive real-time notifications when application status changes, documents are processed, offers are created, and more

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{% card title="Getting Started" href="/getting-started.html" icon="🚀" %}
Learn how to integrate with the Quantum API, from authentication to your first application
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{% card title="Sandbox Environment" href="/sandbox-environment.html" icon="🧪" %}
Use magic values to trigger specific outcomes and test your integration end-to-end
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{% card title="Prefill Applications" href="/prefill-applications.html" icon="📝" %}
Pre-populate loan applications with known data to streamline the applicant experience
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{% card title="Webhooks Overview" href="/webhooks-overview.html" icon="📋" %}
Understand webhook concepts, event types, and the application lifecycle
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{% card title="Webhooks Integration Guide" href="/webhooks-guide.html" icon="🔧" %}
Technical guide for implementing webhooks with code examples and API reference
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{% card title="Migration Guide" href="/migration-guide.html" icon="🔄" %}
Upgrade from v2 to v3 of the Quantum Partner API with minimal disruption
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