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Web Development

Mobile Development

UX/UI Design

Staff Augmentation

CTO as a Service

Dedicated Team

Low code development

Fintech Integration Services

At Stubbs, we help fintech products connect banks, payment providers, and financial APIs into a single working system.

Custom Fintech Data Integration Services We Provide

Payments Integration

We connect your systems with payment gateways and acquiring networks so you can process payments, refunds, and payouts smoothly.

Card Issuing Integration

Integration with card issuing providers to support physical and virtual cards, balances, and transaction flows.

Open Banking Integration

Connection to open banking APIs for secure access to account data and payment initiation.

KYC and AML Integration

We connect your platform with services for identity verification, sanctions screening, PEP checks, and fraud detection.

Banking as a Service Integration

Integration with BaaS platforms for account management, ledgers, and card programs.

Lending and BNPL Integration

We provide APIs for credit scoring, loan servicing, repayments, and buy now pay later workflows.

Brokerage and Trading Integration

Integration with trading platforms for order execution and market data access.

FX and Cross Border Payments Integration

We support currency exchange, international transfers, and connections to settlement providers.

Digital Wallets and Pay by Bank Integration

We connect your business to digital wallets and direct bank payment methods.

Accounting, ERP, and Tax Integration

Data exchange with accounting systems, ERP platforms, and tax tools.

Data Pipelines for BI and Reporting

We build reliable data pipelines to support analytics, reporting, and financial visibility.

Fintech Integration Areas We Cover

Identity, Risk, and Compliance

Our team connects identity verification, screening, fraud signals, and risk data into a single, consistent flow.

Payments, Cards, and Payouts

We integrate payment processing, card operations, and payout systems to help money move smoothly across your platform.

Embedded Finance and Financial Data

We help add financial features directly into your product, whether it’s payments, accounts, or financial data access.

Reporting, Dashboards, and Insights

Our integrations bring data from different providers into clear dashboards used by finance and operations teams.

Global Payments and Multi-Currency

We support cross-border payments, currency conversion, and local payment methods in various regions.

Get a technical consultation with senior fintech integration engineers

Discuss your integrations, providers, and system architecture before development starts.

Name

Email

Prebuilt Connectors and Typical Providers

Payments

Stripe, Adyen, Checkout, PayPal

Open Banking

Plaid, TrueLayer, Tink

Card Issuing

Marqeta, Galileo, Adyen Issuing

Identity and AML

Onfido, Trulioo, Alloy

Banking as a Service and Core Systems

Mambu, Solaris, Treasury Prime

Brokerage and Trading

Alpaca, DriveWealth, Interactive Brokers

Accounting and Tax Systems

NetSuite, Xero, QuickBooks, Avalara

Messaging and Event Processing

Kafka, Webhooks, WebSockets

Security and Compliance for Fintech Integrations

1

OAuth2 and PSD2-ready Flows

Secure authorization flows for banking and financial APIs.

2

Data Encryption in Transit and at Rest

Protection of sensitive financial and personal data.

3

Role-Based Access and MFA

Controlled access for internal teams and system components.

4

Audit Trails, Monitoring, Alerting

Logs and monitoring to track system behavior and detect issues.

5

Compliance Readiness

Architecture prepared for common security and regulatory requirements used in fintech.

Team

How We Deliver Seamless Fintech Integrations

Discovery and Provider Selection

We review your product goals and pick providers that fit your region, use case, and compliance needs.

Solution Architecture and Data Contracts

We define how systems exchange data to keep integrations stable and easy to scale.

API Integration and Webhook Orchestration

APIs and webhooks are connected with proper handling of async events and failures.

Sandbox Certification and Negative Testing

Integrations are tested against provider sandboxes, limits, and error scenarios.

Performance, Reliability, and Failover

We design fallback and monitoring logic to reduce downtime and provider dependency.

Launch, Observability, and Runbooks

After launch, we add monitoring, alerts, and clear operational documentation.

Fintech Integration Services — Results You Can Expect

1

Faster launch windows with certified connectors

Using ready integrations with financial providers helps reduce setup time and avoids rebuilding the same logic from scratch.

2

Higher approval rates with smart routing

Requests are sent to different providers depending on their availability and response times, which leads to higher success rates.

3

Lower chargebacks and fraud losses

Consistent data and shared risk signals make it easier to spot issues early and cut down on losses.

4

Unified data for finance and analytics

All your financial data is organized in one place, which is essential for scalable fintech development services.

Why Choose Our Fintech Integration Company

Mykola Bilous

CEO

Book a consultation

1

Deep Domain Expertise Across Payments, Banking, and Trading

Our specialists work with payment flows, banking APIs, and trading data on a regular basis. This allows integrations to be built with a clear understanding of how money, transactions, and data actually move inside financial products.

2

Proven Playbooks for Regulated Environments

Fintech integrations often depend on compliance, provider rules, and strict data handling. We rely on structured integration approaches that help products pass audits and remain stable as requirements evolve.

3

Flexible Engagement Models

Projects can start with a focused integration task, expand into a dedicated team, or support your internal developers.

4

Transparent SLAs and Post-Launch Support

After launch, integrations are monitored, documented, and supported so your platform continues to operate reliably as volumes, providers, or regions grow.

Fintech Integration Cost — What Drives Budget

1

Number of providers, regions, and payment methods

Each new provider or market adds its own APIs, rules, and edge cases, which increases the overall scope of integration work.

2

Compliance scope and certification requirements

Regulatory steps around payments, banking, or identity verification directly influence both development time and complexity.

3

Data mapping, reconciliation, and reporting depth

If your financial data needs to match across different systems, integrations require more checks and careful balancing.

4

Performance targets and redundancy

High availability, fallback providers, and failover scenarios require additional architecture and testing effort.

FAQs

1.

What do fintech integration services include end to end?

Fintech integration services include choosing providers, connecting APIs, mapping data, handling webhooks, testing, and supporting your launch. These services cover payments, banking, identity checks, and syncing your internal systems.

2.

How do fintech data integration services unify data from multiple providers?

We standardize data from different APIs into one format. This keeps your transactions, balances, and reports consistent, even if each provider uses a different data structure.

3.

Which payments, open banking, and KYC providers can you integrate?

We work with most major payment, banking, and identity providers. The exact setup depends on your region, local rules, and your product’s needs.

4.

How do you secure sensitive financial data during integrations?

We keep your data secure with encrypted communication, limited access, token-based authentication, and by keeping sensitive data separate across services.

5.

What is the typical timeline and cost for a fintech integration project?

The timeline depends on how many providers, regions, and compliance steps are involved. Simple projects can take a few weeks, but more complex setups with several providers may take a few months.

6.

Can you orchestrate multiple KYC / AML vendors to improve pass rates?

Yes, we can connect several providers in one workflow. If one service fails or gives incomplete data, another provider can step in as a backup.

7.

Do you support reconciliation, chargeback flows, and dispute data?

Yes, we can add reconciliation logic, track chargebacks, and handle dispute data to help keep your financial records accurate.

8.

How do you handle webhooks, retries, and idempotency at scale?

We process webhook events with managed queues, using retries and validation to avoid duplicates or data loss. Idempotency ensures each event is handled exactly once.

9.

Can you migrate from an existing provider with minimal downtime?

We handle migration step by step. The new integration runs alongside your current provider until we confirm your data is consistent and stable.

10.

Do you offer ongoing monitoring, incident response, and SLA-based support?

Yes, after launch we provide monitoring, alerts, incident response, and clear SLAs to keep your integrations running smoothly.

Have a project?
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