Open Banking Sandbox & Marketplace

Open Banking Sandbox
and Marketplace

Safely test, publish, onboard, and monetize your open banking APIs from one platform. DigitalAPI gives fintechs a compliant sandbox with synthetic data and consent flows for testing, plus a white-label marketplace for developers and partners to discover, test, and subscribe to your APIs.

ISO 27001 certified

Supports PSD2 and Open Banking requirements

Trusted by 240+ API teams

From cloud-first banks to global telcos

Trusted by
Trusted by API teams at cloud-first companies

Definition

What is an open banking sandbox and marketplace?

An open banking sandbox is a controlled, isolated environment that simulates a bank's open banking APIs, so fintechs and partners can build and test against realistic, synthetic data with consent and authentication flows, without ever touching live systems or real customer information.

An open banking marketplace is where those APIs are published as products that third parties can discover, subscribe to, and onboard themselves: the route from a successful test to a live integration.

Together they turn a regulatory obligation into a commercial channel. Test safely, publish openly, onboard self-serve, and monetize, all while staying aligned with open banking requirements.

Sandbox

Where fintechs test safely against synthetic data with consent and SCA flows, before anything goes live.

Marketplace

Where APIs are published as products so fintechs discover, subscribe, and onboard themselves. DigitalAPI gives you both.

How it works

How does open banking work with DigitalAPI?

You go from existing open banking APIs to a compliant, self-serve marketplace in four steps, on top of the gateways you already run.

1

Expose your open banking APIs

Connect the gateways you already run and aggregate your account and payment APIs into one catalog, no rip-and-replace.

2

Spin up a compliant sandbox

Give partners a production-like environment with synthetic data and consent and authentication flows, so they build safely and never touch live systems.

3

Publish a white-label marketplace

Publish APIs as products with documentation and subscription plans so fintechs discover, subscribe, and integrate on their own.

4

Govern and monetize

Enforce consent, access, throttling, and data-handling policies, capture full audit logs, and package APIs into monetizable products with usage and revenue tracking.

CompliaNT by design

Built for open banking compliance

Open banking is unforgiving on compliance. DigitalAPI builds the controls regulators and security teams expect into the sandbox and marketplace, so you can open up safely and prove it.

Synthetic data, no PII

Realistic, production-like test data with no real customer information.

Consent management

Model consent capture and revocation the way open banking flows require.

Strong customer 
authentication

Test SCA, OAuth, and OIDC flows exactly as partners will use them.

Financial-grade security

Scoped tokens and access patterns built for regulated, sensitive data.

PSD2 and Open Banking

Support OBL and PSD requirements, with room for regional standards.

Policy enforcement

Access, throttling, and data-handling rules across every API and partner.

Full audit trail

Complete logs, approvals, and usage history for regulatory confidence.

TPP access controls

Verify, scope, and manage third-party access from one place.

How we compare

How does DigitalAPI compare to other open banking approaches?

Most open banking platforms lock you into their standards, gateway, or rails. DigitalAPI sits across your existing gateways, giving you one layer to test, publish, govern, and monetize open banking APIs.

Capability

Open banking specialists

Gateway-native accelerators

Sandbox / aggregators

Works across your existing gateways

Every gateway

Own stack

One gateway

Their rails

Compliant sandbox, synthetic data

Mock data

Consent & SCA flows

Framework

Varies

White-label marketplace & onboarding

Built in

Varies

Portal

Built-in monetization

Built in

Some

Add-on

Some

Governance & audit trail

Yes

Strong

Gateway-level

Limited

Standards support (PSD2, OBL)

PSD2 & OBL

Strong

Per spec

Varies

Multi-gateway unified catalog

Works across your existing gateways

Every gateway

Open banking specialists

Own stack

Gateway-native accelerators

One gateway

Sandbox / aggregators

Their rails

Compliant sandbox, synthetic data

Open banking specialists

Gateway-native accelerators

Mock data

Sandbox / aggregators

Consent & SCA flows

Open banking specialists

Gateway-native accelerators

Framework

Sandbox / aggregators

Varies

White-label marketplace & onboarding

Built in

Open banking specialists

Varies

Gateway-native accelerators

Portal

Sandbox / aggregators

Built-in monetization

Built in

Open banking specialists

Some

Gateway-native accelerators

Add-on

Sandbox / aggregators

Some

Governance & audit trail

Yes

Open banking specialists

Strong

Gateway-native accelerators

Gateway-level

Sandbox / aggregators

Limited

Standards support (PSD2, OBL)

PSD2 & OBL

Open banking specialists

Strong

Gateway-native accelerators

Per spec

Sandbox / aggregators

Varies

Multi-gateway unified catalog

Open banking specialists

Gateway-native accelerators

Sandbox / aggregators

Outcomes

What results can you expect?

With DigitalAPI, Implementing Fintech Onboarding and API monetization has been a game-changer for our business.

Sovdeep Das

Sr. Director, Product Management, Fiserv

“A true partner in every sense-reliable, responsive, and always on the same page. Collaboration was effortless.”

Roberto Salomone

Business Transformation Manager @SRG SSR

14d

From signed contract to first onboarded developer.

5x

Faster partner onboarding than stitching gateway portals.

Zero

Gateways you have to rip out and replace.

100%

Of partner activity captured for audit.

Frequently asked questions

Open banking FAQs

What is an open banking sandbox?

An open banking sandbox is a controlled, isolated environment that simulates a bank's open banking APIs, so fintechs and partners can build and test against realistic, synthetic data with consent and authentication flows, without ever touching live systems or real customer information.

How is test data kept safe and compliant?

Sandboxes use synthetic, production-like data with no real customer information, and they are isolated from production. Consent capture and strong customer authentication can be modeled exactly as partners will use them, so high-risk flows are tested without exposing PII.

Which open banking standards does it support?

DigitalAPI supports Open Banking (OBL) and PSD requirements with policy-driven governance and reporting, with room for regional standards. Confirm coverage for your specific market and standard with the team before relying on it.

How do you monetize open banking APIs?

Package APIs into products with custom plans and subscriptions, track usage, and feed it into billing. You get a unified view of usage and revenue, and consumers can track their own usage too, so a compliance program becomes a commercial channel.

What is the difference between an open banking sandbox and a marketplace?

The sandbox is where fintechs test safely against synthetic data with consent and SCA flows. The marketplace is where those APIs are published as products that third parties can discover, subscribe to, and onboard themselves. DigitalAPI provides both in one platform.

Do we have to replace our existing API gateway?

No. DigitalAPI is gateway-agnostic and sits on top of the gateways you already run, such as Apigee, Kong, AWS, and Azure. You deliver open banking without ripping out infrastructure or migrating APIs.

How do fintechs onboard?

Through a white-label marketplace. Fintechs discover APIs, get keys, subscribe to a plan, and test in the sandbox, then go live, all self-serve, with no back-and-forth support tickets.

Get started

Turn your open banking APIs into a revenue channel

From day one, DigitalAPI gives you a compliant sandbox, a white-label marketplace, and built-in monetization for your open banking APIs, across every gateway, without replacing the infrastructure you already run.

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