Asima delivers the regulated rails for account access and instant bank payments, trusted by UK fintechs, merchants and platforms that scale.
Automate instant bank transfers, gather account details, check account balances, verify identities and more. Built for speed, scale, and simplicity, so you can focus on your product, not payments infrastructure.
Bank payments, not card rails
Build direct account-to-account payment flows without the cost, chargebacks, or complexity of legacy schemes. Lower friction for users, lower fees for you. No intermediaries means no surprises.
Real-time account access
Read balances and transactions with user consent. Ideal for onboarding, reconciliation, and smarter financial journeys. Turn raw data into insights that reduce risk, personalise experiences, and accelerate decision-making.
Regulated and compliant
We’re an FCA-authorised provider of account access and payment services. Everything we offer is built and operated by us, giving you complete control, visibility, and compliance.
UK-first, developer-ready
Clean APIs, clear documentation. Asima is purpose-built for UK platforms, apps, and fintechs. Go from sandbox to live with confidence, backed by responsive support and proven reliability.
await asima.instant_payment.create({
amount: 20000,
currency: "GBP",
payment_reference: "BILL-REF-12345",
from_account: {
identification: "04000412345678",
name: "John Smith",
bank_id: "monzo",
},
to_account: {
identification: "53612112345678",
name: "The Bill Payments Company",
},
initiated_at: new Date().toISOString(),
});
Asima provides regulated, read-only access to customer bank account data across UK institutions under our FCA authorisation as an Account Information Service Provider (AISP), in line with the Payment Services Regulations 2017 implementing PSD2. With explicit consent and Strong Customer Authentication (SCA), we retrieve transaction history, balances and scheduled payments directly from ASPSP APIs via open banking.
We then normalise and enrich this data into a consistent schema to support analytics, reconciliation, affordability checks, onboarding and credit workflows. Businesses embed financial insight quickly, while Asima manages the regulatory perimeter, data security and consent lifecycle as the authorised data aggregator.
As an FCA-authorised Payment Initiation Service Provider (PISP), Asima enables authenticated bank-to-bank payments initiated directly from the Payment Service User's (PSU's) account. Our APIs connect to ASPSPs under the open banking framework, prompting the payer to authenticate using SCA before we submit a validated payment instruction, supporting both one-off and repeatable flows.
Funds settle account-to-account without card schemes, acquirers or PCI DSS scope, typically at lower cost and with reduced friction compared to card payments. Asima orchestrates consent, handles errors and status callbacks and provides a clear settlement signal, so merchants and platforms can embed instant payments without inheriting payment-scheme complexity.
Asima isn’t just infrastructure. We work with your team to design, build, and deliver secure, scalable open banking solutions. From strategic input to hands-on implementation, we’re a long-term technical partner, not just a provider.
Map your architecture, scope your use case. A focused technical engagement to assess integration points, define requirements, and accelerate time to value.
From checkout flows to embedded dashboards. We deliver robust, production-grade components on a fixed scope and timeline, built to meet your exact specifications.
Need an open banking expert on your team this month? Embed Asima’s domain specialists into your workflow for architecture reviews, API integration, or compliance planning.
Ongoing support, regulatory input, roadmap shaping. A flexible engagement model for scaling businesses who need senior technical and strategic input as they grow.
From scoping to scale, Asima provides the regulated infrastructure and technical support to move fast, without cutting corners.
Start with a discovery call or structured technical sprint to explore your goals, architecture, and data needs. We help identify where open banking adds real value—whether it’s improving onboarding, enabling real-time payments, or unlocking financial insights.
Integrate via our platform or engage us for fixed-scope delivery of your MVP, payment flows, or data services. With clean APIs, clear documentation, and expert support, your team can stay focused on product while we handle the complexity beneath the surface.
Move to live with confidence, processing real payments and accessing account data on fully compliant rails. Asima is engineered for reliability, security, and scale. We're trusted by fast-moving businesses and large charities across the UK.
For early-stage or testing usage
For scaling businesses
For high-volume needs
For early-stage or testing usage
For scaling businesses
For high-volume needs
Need AIS and PIS? Mix and match both plans and enjoy an additional 20% discount on platform and overage fees.
All plans are subject to a £500 account setup fee, payable on contract signature.
All prices displayed exclude VAT.
Stay up to date with the latest insights on open banking, payments innovation, and fintech trends.
March 12, 2026
Pay by Bank becomes a habit when the journey is simple and predictable. Fast bank selection, clear confirmation and well-designed app flows matter more than branding or pricing when it comes to repeat usage.
Read further
February 26, 2026
Pay by Bank is being positioned as an everyday payment method, not just an alternative checkout option. But habit formation depends on governance, reliability and measurable outcomes. Here’s what enterprise buyers should look for.
Read further
February 20, 2026
Talk of a UK alternative to Visa/Mastercard raises questions about sovereignty and control. But reinventing a rail isn’t the answer. Open banking, account-to-account rails and proper governance already give the UK what it needs to compete and innovate.
Read further
Before implementing Asima, payments for fundraising and events were taken exclusively via card processors, direct debits and manual bank transfers. This approach created several challenges:
With a growing calendar of events and ambitious fundraising targets, the team sought a faster, lower-cost solution that could integrate directly with their platforms.
Download case study →