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Part of obconnect’s Product Delivery Ecosystems

What is an Open Banking ecosystem?

An Open Banking ecosystem is a community of participants — banks, building societies, fintechs, corporates and regulators — that can all interact through one shared, trusted framework rather than a tangle of private, one-to-one integrations. Before it, connecting to a bank meant learning that bank’s proprietary interface: where the data sat, how balances were retrieved, how a payment was initiated. A customer with accounts at two banks faced two entirely different systems. An ecosystem removes that friction by giving every participant a single, standardised way to connect — so a third party can access account information or initiate a payment across many banks through one interface, with the customer’s consent.

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Who's in the ecosystem, and what do they do?

Account-holding institutions (ASPSPs) — the banks and building societies that hold customer accounts and expose them, securely, through standardised APIs.

Third-party providers (TPPs) — regulated firms that use those APIs to provide services: aggregating account information, initiating payments, verifying names.

The regulator / scheme authority — maintains the rules and the register of who is allowed to take part.

Aggregators and infrastructure providers such as obconnect — the connective layer that lets participants join the ecosystem once, rather than integrating bank by bank.

Why the trust framework is the foundation

An ecosystem only works if every participant can trust every other participant. That trust is not assumed — it is engineered, through a trust framework: a central authority that holds a register of approved participants and issues the credentials that let them prove who they are to one another. In UK Open Banking, that authority sits under the FCA-regulated regime, and security is built on open standards so that any compliant participant can be trusted by default. More on this in how a trust framework works.

The biggest misconception

The common mistake is to think an ecosystem is a single product. It isn’t. It is the shared infrastructure through which many products are delivered — Confirmation of Payee, payment initiation, account information, fraud-data sharing and more. Build the ecosystem once, and each new product reaches every participant through it.

Why it matters commercially, not just technically

For a bank or corporate, the ecosystem is the difference between building and maintaining bespoke connections to every counterparty, and connecting once to reach the whole market. That is faster to launch, cheaper to run, and far easier to extend — which is why obconnect builds and operates ecosystems as centralised, managed infrastructure. See: Product Delivery Ecosystems.

FAQ

Frequently asked questions

A shared, trusted framework that lets banks, fintechs and third parties connect through one standardised interface instead of building private integrations with each other.

Account-holding banks (ASPSPs), regulated third-party providers (TPPs), the scheme regulator, and infrastructure providers/aggregators that connect them.

They let every participant prove who they are and trust each other by default, which is what makes safe data sharing and payments possible at scale.

No — it's the infrastructure through which many products are delivered.