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Fundiin Platform Overview

Fundiin Financial Platform has two main integration surfaces:

SurfaceAudiencePurpose
Merchant BNPLMerchants, commerce platforms, checkout teamsAdd Fundiin BNPL to checkout, refund, status, tokenization, and on-page messaging flows.
Lender IntegrationLenders, loan systems, repayment teamsSync loan lifecycle, installment schedule, payment receipt, and repayment allocation data with Fundiin.

Both surfaces use the same platform primitives: environments, credentials, HMAC signing, idempotency, webhooks, sandbox testing, and go-live review.

Start here

  1. Read Integration Steps to choose the right surface.
  2. Set up credentials and tools in Developer Setup.
  3. Review Webhooks and Callbacks.
  4. Complete Go-live Checklist.

Product surfaces

Product areaWhen to use it
Merchant BNPL APIsYou control checkout and want direct API integration.
Commerce PluginsYou use Shopify, WooCommerce, Haravan, or Sapo.
JS ElementsYou need Fundiin messaging on product, cart, or checkout pages.
Lender IntegrationYou are a lender sending loan and repayment events to Fundiin.