SEPA API providers for regulated fintechs include companies like ClearBank, Modulr, Form3 and CentroLink or by directly integrating with SEPA. They all offer different models integrating and delivering SEPA payments. 

In this model, fintechs integrate directly with a licensed bank or payment service provider that offers SEPA connectivity via API, typically through sponsorship or a Banking-as-a-Service arrangement. 

For API-led fintechs, SEPA access is not just about reach, it’s about infrastructure compatibility. Many traditional banks provide SEPA connectivity through legacy IT stacks that were not designed for real-time, event-driven, or cloud-native architectures. While functional, these setups can create friction when payments need to be deeply integrated into modern products. 

Bank-native SEPA APIs and specialist clearing banks take a different approach. Their infrastructure is built API-first, aligning with how modern fintechs design and scale their platforms. This results in faster onboarding, cleaner integrations, and the ability to treat payments as a programmable capability rather than a static back-office function. 

How this model works 
The bank or PSP is a direct or sponsored participant in SEPA schemes. Your product connects to their API to initiate: 

• SEPA Credit Transfers 
• SEPA Instant payments 
• Sometimes SEPA Direct Debits 

The provider handles scheme participation, settlement, and regulatory obligations. 

Pros 

• Greater control over payment flows 
• Richer features such as named IBANs and ISO 20022 data 
• Better unit economics at scale 

Cons 

• More detailed onboarding and ongoing relationship management 
• Typically one integration per banking partner 
• Higher regulatory expectations for the fintech 

Best for 
Regulated fintechs and PSPs that need production-grade payment infrastructure, not just payment initiation. 

“Real-time payments only work properly when the infrastructure behind them is built for real time. Modern APIs don’t just enable instant payments – they make them usable as part of a product.” Helena Lambert, Payments Expert at ClearBank 

In this model, fintechs integrate with a specialist payment technology provider that connects directly to SEPA clearing systems and abstracts scheme complexity through modern APIs. 

Unlike bank-led models, these providers focus on scheme processing and connectivity, not on providing regulated accounts or holding client funds. They operate as technical infrastructure partners rather than banking partners. 

How this model works 
The payment platform connects to SEPA clearing systems such as: 

• RT1 
• TIPS 
• STEP2  

It manages:  

• ISO 20022 message formatting and validation 
• Scheme rule compliance 
• Clearing connectivity 
• Technical participation models (including sponsorship in some cases)  

Your product integrates into their API layer to initiate: 

• SEPA Credit Transfers 
• SEPA Instant payments 
• Sometimes SEPA Direct Debits 

However, settlement accounts and safeguarding arrangements typically sit with a separate licensed bank. 

Pros 

• Deep alignment with SEPA technical standards 
• Strong ISO 20022 capability 
• Suitable for high-volume and complex payment flows 
• Ideal for modernising legacy scheme access 
• Faster than building direct scheme connectivity in-house 

Cons 

• Requires a separate banking partner for accounts and safeguarding 
• Greater operational and liquidity coordination across multiple providers 
• Commercial and technical complexity increases with scale 
• Does not provide embedded banking economics 

Best for 
High-volume fintechs and banks that need advanced scheme processing rather than full banking infrastructure. 

ClearBank is a technology-led clearing bank and a direct participant in SEPA schemes. It provides access to SEPA Credit Transfer and SEPA Instant through a single API using ISO 20022 enhanced messaging. 

ClearBank supports: 

• SEPA Credit Transfer (standard credit transfers) 
• SEPA Instant (real-time payments, 24/7, up to scheme limits) 
• Named IBANs and multi-currency accounts 
• Bank-grade clearing and settlement infrastructure 

A real-world example is Orbital, a cross-border payments platform that bridges stablecoins and traditional rails. By partnering with ClearBank Europe, Orbital gained direct access to SEPA infrastructure, enabling faster and more transparent EUR flows while reducing reliance on slower correspondent banking rails. 

ClearBank’s model offers banking infrastructure via API. The fintech controls the customer experience, while the bank handles scheme participation, settlement, and regulatory complexity. 

Modulr positions itself as an embedded payments platform. It offers a unified API for SEPA Instant, SEPA Credit, and UK payment schemes. 

Modulr’s SEPA Instant service: 

• Operates 24/7 
• Typically settles in seconds 
• Can be combined with EUR accounts, cards, and collections 

This makes Modulr well suited to use cases where speed, automation, and operational efficiency matter, such as payroll, lending, marketplaces, and wage-advance platforms. Modulr can operate under its own regulatory permissions or support clients under theirs, depending on the structure. 

Form3 is a cloud-native payment technology provider that enables banks and regulated fintechs to connect to SEPA schemes through a modern API layer. Unlike bank-led providers, Form3 does not operate as a deposit-taking institution or hold client funds. Instead, it focuses on scheme processing and connectivity. 

Form3 provides access to: 

• SEPA Credit Transfer 
• SEPA Instant 
• ISO 20022-native message processing 
• Direct connectivity to clearing systems such as RT1 and STEP2 

Its infrastructure is built to replace legacy payment engines and support high-availability, scalable scheme participation. For regulated fintechs and banks, this can mean modernising SEPA connectivity without building direct clearing access in-house. 

Because Form3 does not provide accounts or safeguarding, settlement arrangements typically sit with a separate licensed bank. This makes Form3 well suited to institutions that already have a regulatory structure and need advanced scheme processing capabilities rather than embedded banking or account issuance. 

Form3’s model is best described as payment scheme infrastructure delivered via API. 

CentroLink is a SEPA payment system, operated by the Bank of Lithuania, providing SEPA connectivity under its regulatory permissions. Unlike pure scheme processors, CentroLink operates within a regulated framework and can offer SEPA access alongside safeguarding and compliance services. 

CentroLink supports: 

• SEPA Credit Transfer 
• SEPA Instant 
• SEPA Direct Debit 
• Regulated safeguarding and settlement structures 

Fintechs integrate into CentroLink’s API to initiate SEPA payments, while CentroLink manages scheme participation, compliance obligations, and operational oversight under its payment institution licence. 

This model is often used by regulated fintechs seeking a cost-effective entry into European markets without establishing direct scheme participation. However, firms still need to be able to handle SEPA messages directly. 

CentroLink’s approach sits closer to the bank or PSP-native integration model, combining SEPA access with regulatory coverage rather than offering scheme processing alone. 

The right SEPA API provider depends on your regulatory position, operational maturity, and long-term product strategy. 

If you are a regulated fintech or PSP that needs accounts, safeguarding, and full scheme participation handled by a licensed institution, a bank or PSP-native SEPA API model is typically the most appropriate. This model combines payment connectivity with regulatory coverage and settlement infrastructure, reducing complexity across multiple providers. 

If you already have a licensed banking partner and primarily need modern scheme processing or ISO 20022-native connectivity, a cloud-based scheme processor may be the better fit. This approach is often used by high-volume fintechs or banks, modernising legacy payment engines. 

When evaluating providers, consider: 

• Whether you need IBAN issuance and regulated fund holding 
• Your current licensing status (EMI, PI, or banking licence) 
• SEPA Instant reachability and scheme participation model 
• ISO 20022 support and message enrichment capabilities 
• Operational resilience and DORA alignment 
• Liquidity and settlement management structure 
• Long-term scalability across Europe 

The key distinction is structural: Are you looking for banking infrastructure via API, or simply scheme connectivity infrastructure? 

Choosing the right model early can prevent costly re-platforming later, particularly as transaction volumes scale and regulatory expectations increase. 

There is no single “best” SEPA API for regulated fintechs. The right choice depends on whether you need regulated banking infrastructure or technical scheme connectivity. 

Bank and PSP-native APIs combine SEPA access with proven account structures, including safeguarding. Scheme processors focus on ISO 20022-native connectivity and clearing infrastructure, but require a separate licensed bank for fund holding. 

Sources: 

• https://www.modulrfinance.com/newsroom/modulr-launches-its-sepa-instant-service-to-supercharge-real-time-european-business-payments 
• https://www.modulrfinance.com/product/pay-ins 
• https://www.modulrfinance.com/solutions/lending-and-wage-advance 
• https://www.form3.tech/ 
• https://www.form3.tech/payment-schemes/sepa-instant 
• https://www.form3.tech/payment-schemes/sepa-credit-transfer 
• https://www.centrolink.eu/ 
• https://www.centrolink.eu 
• https://www.lb.lt