PRODUCT · LARK GRID

Developer-first LAS APIs

Build custom experiences with unified REST, official SDKs, and webhooks. Secure, observable, and fast.

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CORE PLATFORM

Build with confidence

Unified APIs, robust SDKs, and first-class tooling to ship LAS features fast.

APIs

Unified REST

Consistent resource model for accounts, positions, loans, collateral, and workflows.

  • CRUD endpoints with filters
  • Idempotent writes & retries
  • Strong typing & versioning
SDKs

Official SDKs

First-party SDKs for TypeScript/JS and mobile to accelerate development.

  • Typed clients & helpers
  • Auth, retries, backoff
  • Example apps
Events

Webhooks & events

Event-driven architecture with secure delivery and replay.

  • Signed payloads
  • Automatic retries
  • Dead-letter queue
Security

Auth & permissions

OAuth2, API keys, and fine-grained RBAC for teams and services.

  • OAuth2 & PATs
  • Role-based access
  • Audit logs
Observability

Logs, metrics, traces

Comprehensive visibility across API calls, webhooks, and background jobs.

  • Correlation IDs
  • Rate limits & quotas
  • Status page
Sandbox

Test data & simulators

Deterministic test data, scenario simulators, and seeded accounts.

  • Seeded portfolios
  • Loan lifecycle simulator
  • Clock controls
ARCHITECTURE

Secure, scalable, observable

A modern cloud stack with first-class security and visibility for your ops.

API gateway

Globally distributed gateway with autoscaling and zero-downtime deploys.

  • Rate limiting & quotas
  • Blue/green deploys
  • Global CDN
  • mTLS upstreams

Event backbone

Durable event bus powering webhooks and streaming consumers.

  • Exactly-once semantics
  • Retries & DLQ
  • Ordering by key

Security & compliance

Bank-grade security across data, transport, and operations.

  • RBI-aligned controls
  • KMS-backed key mgmt
  • Field-level encryption

Performance & scale

Low-latency APIs with horizontal scale and backpressure handling.

  • <150ms P95
  • Autoscaling workers
  • Bulk APIs
<150ms
P95 API latency
99.9%
Availability
Real-time
Event delivery
Unlimited
Sandbox calls

See Lark Grid in action

We'll provision a sandbox and share docs tailored to your use case.

+91 78360 05500
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LARK LAS·OS

The operating system for Loan Against Securities in India. Launch your own LAS product on Lark's rails: white-labelled, programmable, and yours from day one.

LAS·OS is a B2B platform of Lark Finserv. Lending services are provided by RBI-regulated NBFCs and banks in our network.LAS·OS is a B2B platform of Lark Finserv. Lending services are provided by RBI-regulated NBFCs and banks in our network.LAS·OS is a B2B platform of Lark Finserv. Lending services are provided by RBI-regulated NBFCs and banks in our network.LAS·OS is a B2B platform of Lark Finserv. Lending services are provided by RBI-regulated NBFCs and banks in our network.LAS·OS is a B2B platform of Lark Finserv. Lending services are provided by RBI-regulated NBFCs and banks in our network.LAS·OS is a B2B platform of Lark Finserv. Lending services are provided by RBI-regulated NBFCs and banks in our network.

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