Lending API Platform

Reference APIs, events, and webhook patterns for connecting the Lending Operating System to enterprise channels, core systems, and partners.

Governed interfaces reduce implementation risk

Developer, integration, and platform teams move faster when interfaces are predictable, versioned, and traceable across environments.

For executives and transformation teams

This page frames the integration model in business terms: security, change control, implementation reuse, and the operating boundaries between LL and existing enterprise systems.

Detailed technical specifications extend across the API, event, and webhook utilities, while this page remains the reference view for architecture and implementation planning.

Open the event catalog

Example API

POST /loan/applications

{
 "customer_id": "CUS123",
 "product_code": "PL01",
 "amount": 150000
}

The Lending OS exposes event-driven APIs enabling partners, core systems, and fintech ecosystems to integrate lifecycle capabilities.

Developer Portal

API-first, event-driven integration patterns for the Lending Operating System.

Auth
OAuth2 / OIDC, mTLS, versioned APIs, and audit-ready request tracing.
Events
Standard lifecycle events for LOS, LMS, Collections, and Litigation—ready for streaming.
Webhooks
Subscribe once, reuse everywhere. Governed delivery with replay & signature verification.
Create Loan Application
POST /loan/applications
POST /loan/applications
{
  "customer_id": "CUS123",
  "product_code": "PL01",
  "amount": 150000
}
Webhook Example
event: PaymentReceived
POST https://your-webhook.endpoint/ll/events
{
  "event_type": "PaymentReceived",
  "loan_id": "LN-00991",
  "amount": 8500,
  "occurred_at": "2026-03-04T10:15:22Z"
}
Event Catalog (excerpt)
EventDomainPurpose
LoanApplicationCreatedLOSIntake + traceability
UnderwritingCompletedLOSDecision execution
PaymentReceivedLMSPosting + reconciliation
DelinquencyDetectedCollectionsTrigger strategies
LegalCaseOpenedLitigationEnforcement workflow