GB Bank
GB Bank Limited is a UK challenger bank headquartered in Middlesbrough (2 Centre Square) with a London office (73 Brook Street, Mayfair). Wholly owned and privately backed rather than a mutual building society, it secured its full UK banking licence in 2022 and is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the PRA (Financial Services Register number 850286). GB Bank funds SME regional property developers and investors with development finance, buy-to-let and bridging loans (typically between £26k and £5m across underserved UK regions) and funds that lending with retail deposits - fixed-rate bonds, notice accounts and easy-access savings accounts protected by the FSCS up to £85,000, managed through an online portal and a GB Bank mobile app. As a small, non-CMA9 FCA-authorised bank focused on savings and secured lending, GB Bank does not operate a public developer portal or a documented UK Open Banking (OBIE / PSD2) API surface; the Open Banking API families listed here are represented as the shared industry standard the bank would conform to as an FCA-authorised ASPSP, and are unverified for GB Bank pending a confirmed developer portal or Open Data endpoint.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles GB Bank the way a machine reads it — 39 machine-readable artifacts across 4 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — GB Bank scores 37.1/100 (thin), with a separate agent-readiness read of 37/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/gb-bank/"
title="GB Bank on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/gb-bank.svg"
alt="GB Bank Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/gb-bank/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/gb-bank/"
title="GB Bank on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/gb-bank/card.svg"
alt="GB Bank Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile GB Bank
Each block below is one kind of artifact we hold for GB Bank. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 34
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
GB Bank Account Access Consents API
The Account Access Consents API from GB Bank — 2 operation(s) for account access consents.
GB Bank Accounts API
The Accounts API from GB Bank — 2 operation(s) for accounts.
GB Bank ATM API
Endpoint for getting ATM data
GB Bank Balances API
The Balances API from GB Bank — 2 operation(s) for balances.
GB Bank BCA API
Endpoint for getting Business Current Account data
GB Bank Beneficiaries API
The Beneficiaries API from GB Bank — 2 operation(s) for beneficiaries.
GB Bank Branch API
Endpoint for getting Branch data
GB Bank CCC API
Endpoint for getting Commercial Credit Card data
GB Bank Direct Debits API
The Direct Debits API from GB Bank — 2 operation(s) for direct debits.
GB Bank Domestic Payment Consents API
The Domestic Payment Consents API from GB Bank — 3 operation(s) for domestic payment consents.
GB Bank Domestic Payments API
The Domestic Payments API from GB Bank — 3 operation(s) for domestic payments.
GB Bank Domestic Scheduled Payment Consents API
The Domestic Scheduled Payment Consents API from GB Bank — 2 operation(s) for domestic scheduled payment consents.
GB Bank Domestic Scheduled Payments API
The Domestic Scheduled Payments API from GB Bank — 3 operation(s) for domestic scheduled payments.
GB Bank Domestic Standing Order Consents API
The Domestic Standing Order Consents API from GB Bank — 2 operation(s) for domestic standing order consents.
GB Bank Domestic Standing Orders API
The Domestic Standing Orders API from GB Bank — 3 operation(s) for domestic standing orders.
GB Bank File Payment Consents API
The File Payment Consents API from GB Bank — 3 operation(s) for file payment consents.
GB Bank File Payments API
The File Payments API from GB Bank — 4 operation(s) for file payments.
GB Bank Funds Confirmation Consents API
The Funds Confirmation Consents API from GB Bank — 2 operation(s) for funds confirmation consents.
GB Bank Funds Confirmations API
The Funds Confirmations API from GB Bank — 1 operation(s) for funds confirmations.
GB Bank International Payment Consents API
The International Payment Consents API from GB Bank — 3 operation(s) for international payment consents.
GB Bank International Payments API
The International Payments API from GB Bank — 3 operation(s) for international payments.
GB Bank International Scheduled Payments API
The International Scheduled Payments API from GB Bank — 3 operation(s) for international scheduled payments.
GB Bank International Scheduled Payments Consents API
The International Scheduled Payments Consents API from GB Bank — 3 operation(s) for international scheduled payments consents.
GB Bank International Standing Orders API
The International Standing Orders API from GB Bank — 3 operation(s) for international standing orders.
GB Bank International Standing Orders Consents API
The International Standing Orders Consents API from GB Bank — 2 operation(s) for international standing orders consents.
GB Bank Offers API
The Offers API from GB Bank — 2 operation(s) for offers.
GB Bank Parties API
The Parties API from GB Bank — 3 operation(s) for parties.
GB Bank PCA API
Endpoint for getting Personal Current Account data
GB Bank Products API
The Products API from GB Bank — 2 operation(s) for products.
GB Bank Scheduled Payments API
The Scheduled Payments API from GB Bank — 2 operation(s) for scheduled payments.
GB Bank SME API
Endpoint for getting Unsecured SME Loan data
GB Bank Standing Orders API
The Standing Orders API from GB Bank — 2 operation(s) for standing orders.
GB Bank Statements API
The Statements API from GB Bank — 5 operation(s) for statements.
GB Bank Transactions API
The Transactions API from GB Bank — 2 operation(s) for transactions.
Scroll within the panel for all 34 ·
Open Collections 1
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Open Data API
OPEN COLLECTIONSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for GB Bank — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Access & Security 3
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 5
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/gb-bank · machine-readable index on apis.io
This is an independent, third-party profile of GB Bank, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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