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An FD SDK provider sits between regulated issuers and digital distribution platforms. The bank or NBFC issues the deposit. The fintech owns the customer relationship. The infrastructure layer connects product discovery, customer workflows, booking, and servicing.
Before comparing vendors, define which responsibilities your team wants to own. A provider that offers only booking APIs is different from one that supports the complete deposit lifecycle.
Ask for the issuers that are currently available for your programme, not a combined list of historical integrations and future plans. Confirm product types, customer eligibility, deposit limits, tenures, rate update processes, and rollout dependencies.
Coverage should also be evaluated for resilience. A multi-issuer product reduces dependence on one integration, but only if the platform can consistently normalize product data and operational states.
The booking journey is only the beginning. Evaluate whether the provider supports:
Our guide to the hidden complexity of FD distribution explains why post-booking operations matter.
A white-label FD SDK should preserve the host platform's brand without weakening clarity or required disclosures. Review color and typography controls, content configuration, accessibility, error states, mobile behaviour, and how prominently the issuer is identified.
Request evidence appropriate to your risk process. Evaluate information-security governance, encryption, access controls, data location, vulnerability management, audit trails, incident response, and third-party dependencies.
Compliance claims should clearly separate the responsibilities of the issuer, infrastructure provider, and distributor. Avoid vendors that describe every layer as automatically compliant without explaining ownership.
Good documentation makes integration behaviour predictable. It should explain environments, credentials, user context, events, retries, status models, testing, error handling, and production readiness. A sandbox should let teams exercise failure and recovery paths, not only a successful demo.
Review the Blostem FD SDK integration guides as an example of the preparation areas a project should cover.
Ask how the provider handles uncertain payment outcomes, duplicate protection, booking mismatches, issuer reports, customer escalations, and servicing requests. Confirm response ownership and what evidence your support team receives.
Availability is only one part of an SLA. Review severity definitions, response targets, communication channels, maintenance notices, dependency exclusions, recovery expectations, and escalation ownership. Also ask how issuer or SDK changes are versioned and tested.
Compare platform fees, implementation costs, transaction or revenue-share terms, minimum commitments, support inclusions, and the cost of custom requirements. Model economics using realistic customer conversion, deposit size, servicing cost, and issuer availability assumptions.
Score every provider using the same evidence-based categories: live coverage, lifecycle capability, UX control, security, documentation, sandbox, reconciliation, support, SLA, commercials, and references.
Blostem's FD SDK provider page describes its current product coverage and offers a route to request a tailored integration review.