Coventry Building Society

Coventry Building Society is the United Kingdom's second-largest building society, a member-owned mutual founded in 1884 and headquartered in Coventry, England, offering savings and residential mortgages to millions of members and in January 2025 completing its acquisition of The Co-operative Bank. As an FCA-authorised and PRA-regulated deposit-taker and Account Servicing Payment Service Provider (ASPSP), it participates in UK Open Banking under PSD2 and the Open Banking Implementation Entity (OBIE) standards. It is not one of the CMA9 mandated banks, but operates a public developer portal at developer.coventrybuildingsociety.co.uk that publishes CBS v2.0 Open Banking APIs - Account Information Services (AIS), Payment Initiation Services (PIS), and Confirmation of Funds (CBPII) - conformant to the OBIE Read/Write API Standard, alongside a public FCA Service Metrics open-data endpoint and a sandbox for TPP onboarding. Read/Write access is secured with FAPI-grade OAuth2/OIDC, PSD2 strong customer authentication, and mutual-TLS using Open Banking WAC or eIDAS QWAC certificates, with registered TPP onboarding handled via open.banking@thecoventry.co.uk.

Coventry Building Society publishes 4 APIs on the APIs.io network, including Open Data FCA Service Metrics API, Account & Transaction Information API (AIS), Payment Initiation API (PIS), and 1 more. Tagged areas include Financial-Services, Banking, Building Society, Open Banking, and PSD2.

Coventry Building Society’s developer surface includes authentication, documentation, support, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub

44.7/100 developing ▬ flat Agent 40/100 agent ready Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

4 APIs 1 MCP Servers

Financial-Services Banking Building Society Open Banking PSD2 OBIE United Kingdom Payments Account Information Confirmation of Funds Fintech

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 44.7/100 · developing

Contract Quality 10.9 / 21

Developer Ergonomics 6.4 / 17

Access Clarity 4.9 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.7 / 10

Discoverability 6.9 / 9

Regulatory Posture 13.1 / 15

Agent readiness — 40/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/coventry-building-society: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

Individual APIs this provider publishes, each with its own machine-readable definition.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Scopes 1

OAuth scopes governing access to this provider's APIs.

Coventry Building Society Scopes

3 scopes · clientCredentials/authorizationCode

3 scopes

SCOPES

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LLMsTxt

MCPServer

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Access & Security 4

Authentication, authorization, and security posture

Compliance

DomainSecurity

OAuthScopes

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

LinkedIn

Other 5

Properties that don't map to a standard resource type

Overlay

Overlay

Overlay

Overlay

OpenBanking

Source (apis.yml)

aid: coventry-building-society
url: https://raw.githubusercontent.com/api-evangelist/coventry-building-society/refs/heads/main/apis.yml
name: Coventry Building Society
kind: company
description: Coventry Building Society is the United Kingdom's second-largest building society, a member-owned mutual founded
  in 1884 and headquartered in Coventry, England, offering savings and residential mortgages to millions of members and in
  January 2025 completing its acquisition of The Co-operative Bank. As an FCA-authorised and PRA-regulated deposit-taker and
  Account Servicing Payment Service Provider (ASPSP), it participates in UK Open Banking under PSD2 and the Open Banking Implementation
  Entity (OBIE) standards. It is not one of the CMA9 mandated banks, but operates a public developer portal at developer.coventrybuildingsociety.co.uk
  that publishes CBS v2.0 Open Banking APIs - Account Information Services (AIS), Payment Initiation Services (PIS), and Confirmation
  of Funds (CBPII) - conformant to the OBIE Read/Write API Standard, alongside a public FCA Service Metrics open-data endpoint
  and a sandbox for TPP onboarding. Read/Write access is secured with FAPI-grade OAuth2/OIDC, PSD2 strong customer authentication,
  and mutual-TLS using Open Banking WAC or eIDAS QWAC certificates, with registered TPP onboarding handled via open.banking@thecoventry.co.uk.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Financial-Services
- Banking
- Building Society
- Open Banking
- PSD2
- OBIE
- United Kingdom
- Payments
- Account Information
- Confirmation of Funds
- Fintech
tags_raw:
- Financial Services
- Banking
- Building Society
- Open Banking
- PSD2
- OBIE
- United Kingdom
- Payments
- Account Information
- Confirmation of Funds
- Fintech
created: '2026-07-23'
modified: '2026-07-23'
specificationVersion: '0.23'
apis:
- aid: coventry-building-society:coventry-building-society-open-data-fca-service-metrics-api
  name: Coventry Building Society Open Data FCA Service Metrics API
  description: Public, unauthenticated OBIE Open Data endpoint publishing FCA service metrics for personal current accounts
    at Coventry Building Society (CBS v1.0). Live JSON host confirmed responding at the documented base URL; at review time
    the /pca endpoint returned an HTTP 500 JSON error rather than a 200, so a successful data payload was not confirmed.
  humanURL: https://developer.coventrybuildingsociety.co.uk/
  baseURL: https://connect.coventrybuildingsociety.co.uk/pd/digital/open-banking/v1.0
  tags:
  - Open Data
  - FCA Service Metrics
  - Personal Current Accounts
  properties:
  - type: Documentation
    url: https://developer.coventrybuildingsociety.co.uk/
  - type: APIReference
    url: https://openbanking.atlassian.net/wiki/spaces/DZ/pages/195068329/FCA+Service+Metrics+API+Specification+-+v1.0.0
  - type: OpenAPI
    url: openapi/obie-opendata-swagger.json
- aid: coventry-building-society:coventry-building-society-account-information-api
  name: Coventry Building Society Account & Transaction Information API (AIS)
  description: OBIE Read/Write Account and Transaction Information Services (AIS) API, CBS v2.0, providing consented third-party
    read access to account, balance, transaction, standing order, direct debit, beneficiary, and product data. FAPI-secured
    (OAuth2/OIDC, PSD2 SCA, mTLS); documented, authenticated, onboarding required. OpenAPI pointer is the shared OBIE Read/Write
    standard, not a Coventry proprietary contract.
  humanURL: https://developer.coventrybuildingsociety.co.uk/
  baseURL: https://connect.coventrybuildingsociety.co.uk/pd/digital/open-banking/v2.0/aisp
  tags:
  - Account Information
  - AIS
  - Open Banking
  properties:
  - type: Documentation
    url: https://developer.coventrybuildingsociety.co.uk/
  - type: APIReference
    url: https://openbankinguk.github.io/read-write-api-site3/
  - type: OpenAPI
    url: openapi/obie-account-info-openapi.yaml
- aid: coventry-building-society:coventry-building-society-payment-initiation-api
  name: Coventry Building Society Payment Initiation API (PIS)
  description: OBIE Read/Write Payment Initiation Services (PIS) API, CBS v2.0, enabling consented third-party initiation
    of domestic single, scheduled, standing order, and file payments. FAPI-secured (OAuth2/OIDC, PSD2 SCA, mTLS); documented,
    authenticated, onboarding required. OpenAPI pointer is the shared OBIE Read/Write standard, not a Coventry proprietary
    contract.
  humanURL: https://developer.coventrybuildingsociety.co.uk/
  baseURL: https://connect.coventrybuildingsociety.co.uk/pd/digital/open-banking/v2.0/pisp
  tags:
  - Payment Initiation
  - PIS
  - Open Banking
  properties:
  - type: Documentation
    url: https://developer.coventrybuildingsociety.co.uk/
  - type: APIReference
    url: https://openbankinguk.github.io/read-write-api-site3/
  - type: OpenAPI
    url: openapi/obie-payment-initiation-openapi.yaml
- aid: coventry-building-society:coventry-building-society-confirmation-of-funds-api
  name: Coventry Building Society Confirmation of Funds API (CBPII)
  description: OBIE Read/Write Confirmation of Funds Services (CBPII) API, CBS v2.0, allowing a consented card-based payment
    instrument issuer to confirm whether funds are available on an account. FAPI-secured (OAuth2/OIDC, PSD2 SCA, mTLS); documented,
    authenticated, onboarding required. OpenAPI pointer is the shared OBIE Read/Write standard, not a Coventry proprietary
    contract.
  humanURL: https://developer.coventrybuildingsociety.co.uk/
  baseURL: https://connect.coventrybuildingsociety.co.uk/pd/digital/open-banking/v2.0/cbpii
  tags:
  - Confirmation of Funds
  - CBPII
  - Open Banking
  properties:
  - type: Documentation
    url: https://developer.coventrybuildingsociety.co.uk/
  - type: APIReference
    url: https://openbankinguk.github.io/read-write-api-site3/
  - type: OpenAPI
    url: openapi/obie-confirmation-funds-openapi.yaml
common:
- type: AgenticAccess
  url: agentic-access/coventry-building-society-agentic-access.yml
- type: Conventions
  url: conventions/coventry-building-society-conventions.yml
- type: Idempotency
  url: conventions/coventry-building-society-conventions.yml
- type: ErrorCatalog
  url: errors/coventry-building-society-problem-types.yml
- type: Lifecycle
  url: lifecycle/coventry-building-society-lifecycle.yml
- type: Conformance
  url: conformance/coventry-building-society-conformance.yml
- type: Compliance
  url: https://www.coventrybuildingsociety.co.uk/member/help/savings/open-banking.html
- type: DataModel
  url: data-model/coventry-building-society-data-model.yml
- type: LLMsTxt
  url: llms/coventry-building-society-llms.txt
- type: MCPServer
  url: mcp/coventry-building-society-mcp.yml
- type: ToolCrosswalk
  url: mcp/coventry-building-society-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Overlay
  name: AIS overlay
  url: overlays/coventry-building-society-account-info-overlay.yaml
- type: Overlay
  name: PIS overlay
  url: overlays/coventry-building-society-payment-initiation-overlay.yaml
- type: Overlay
  name: CBPII overlay
  url: overlays/coventry-building-society-confirmation-funds-overlay.yaml
- type: Overlay
  name: Open Data overlay
  url: overlays/coventry-building-society-opendata-overlay.yaml
- type: TermsOfService
  url: https://www.coventrybuildingsociety.co.uk/member/help/terms-of-use.html
- type: PrivacyPolicy
  url: https://www.coventrybuildingsociety.co.uk/consumer/help/privacy-policy.html
- type: DomainSecurity
  url: security/coventry-building-society-domain-security.yml
- type: OAuthScopes
  url: scopes/coventry-building-society-scopes.yml
- type: Authentication
  url: authentication/coventry-building-society-authentication.yml
- type: Website
  url: https://www.coventrybuildingsociety.co.uk/
- type: DeveloperPortal
  url: https://developer.coventrybuildingsociety.co.uk/
- type: Documentation
  url: https://developer.coventrybuildingsociety.co.uk/
- type: OpenBanking
  url: https://www.coventrybuildingsociety.co.uk/member/help/savings/open-banking.html
- type: LinkedIn
  url: https://www.linkedin.com/company/coventry-building-society
- type: Support
  url: https://developer.coventrybuildingsociety.co.uk/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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Coventry Building Society

Kin Score

APIs 4

Coventry Building Society Open Data FCA Service Metrics API

Coventry Building Society Account & Transaction Information API (AIS)

Coventry Building Society Payment Initiation API (PIS)

Coventry Building Society Confirmation of Funds API (CBPII)

Open Collections 1

Open Data API

MCP Servers 1

Coventry Building Society MCP Server

Security Posture 2

Coventry Building Society Authentication

Coventry Building Society Domain Security

Scopes 1

Coventry Building Society Scopes

Agentic Access 1

Coventry Building Society Agentic Access

Resources

Get Started 1

Documentation 1

Agent Surfaces 4

Design & Contract 6

Build 1

Access & Security 4

Operate 1

Commercial 2

Company 2

Other 5

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