C. Hoare & Co.

C. Hoare & Co. (Hoares Bank) is the United Kingdom's oldest privately-owned bank, founded in 1672 by Sir Richard Hoare and owned continuously by the Hoare family for twelve generations, operating a bespoke private banking, lending, and wealth business from Fleet Street in London and an office in Cambridge. It is an FCA-authorised ASPSP (Account Servicing Payment Service Provider) and a regulated participant in UK Open Banking under PSD2. As a private bank it is not one of the CMA9 mandated institutions, so it does not publish the unauthenticated Open Data (ATM / branch / product) reference APIs; instead it exposes the OBIE Read/Write standard through a MuleSoft Anypoint developer portal at developer.hoaresbank.co.uk, publishing Account and Transaction Information (AIS), Payment Initiation (PIS), and Dynamic Client Registration conformant to the Open Banking Implementation Entity (OBIE) v3.1 standard. Production access is FAPI-secured with OAuth2/OIDC, PSD2 strong customer authentication, and mutual-TLS client authentication using OBIE/eIDAS certificates after third-party provider onboarding.

C. Hoare & Co. publishes 3 APIs on the APIs.io network: Account and Transaction Information API, Payment Initiation API, and Dynamic Client Registration API. Tagged areas include Financial Services, Banking, Private Bank, Open Banking, and PSD2.

C. Hoare & Co.’s developer surface includes authentication, documentation, support, legal docs, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

43.8/100 thin ▬ flat Agent 74/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5

3 APIs 1 MCP Servers

Financial ServicesBankingPrivate BankOpen BankingPSD2OBIEFAPIUnited KingdomPaymentsAccount Information

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 43.8/100 · thin

Contract Quality 10.9 / 25

Developer Ergonomics 9.6 / 20

Commercial Clarity 5.8 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 10.0 / 10

Agent readiness — 74/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 15 / 15

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/c-hoare-and-co: 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 3

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.

C Hoare And Co Scopes

2 scopes · authorizationCode/clientCredentials

2 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

AgentSkill

MCPServer

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Conformance

Lifecycle

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

OAuthScopes

Authentication

Compliance

Operate 2

Status, limits, changes, and where to get help

Support

Support

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Legal

Legal

Company 2

The organization behind the API

Website

Website

LinkedIn

Other 2

Properties that don't map to a standard resource type

OpenID

OpenID

Registration

Registration

Source (apis.yml)

aid: c-hoare-and-co
url: https://raw.githubusercontent.com/api-evangelist/c-hoare-and-co/refs/heads/main/apis.yml
name: C. Hoare & Co.
kind: company
description: C. Hoare & Co. (Hoares Bank) is the United Kingdom's oldest privately-owned bank, founded in 1672 by Sir Richard
  Hoare and owned continuously by the Hoare family for twelve generations, operating a bespoke private banking, lending, and
  wealth business from Fleet Street in London and an office in Cambridge. It is an FCA-authorised ASPSP (Account Servicing
  Payment Service Provider) and a regulated participant in UK Open Banking under PSD2. As a private bank it is not one of
  the CMA9 mandated institutions, so it does not publish the unauthenticated Open Data (ATM / branch / product) reference
  APIs; instead it exposes the OBIE Read/Write standard through a MuleSoft Anypoint developer portal at developer.hoaresbank.co.uk,
  publishing Account and Transaction Information (AIS), Payment Initiation (PIS), and Dynamic Client Registration conformant
  to the Open Banking Implementation Entity (OBIE) v3.1 standard. Production access is FAPI-secured with OAuth2/OIDC, PSD2
  strong customer authentication, and mutual-TLS client authentication using OBIE/eIDAS certificates after third-party provider
  onboarding.
accessModel:
  pricing: unknown
  onboarding: partner
  trial: false
  try_now: false
  public: false
  label: TPP onboarding · OBIE/eIDAS certificates required
  confidence: medium
  source:
  - authentication
  generated: '2026-07-23'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Financial Services
- Banking
- Private Bank
- Open Banking
- PSD2
- OBIE
- FAPI
- United Kingdom
- Payments
- Account Information
created: '2026-07-23'
modified: '2026-07-23'
specificationVersion: '0.19'
apis:
- aid: c-hoare-and-co:c-hoare-and-co-account-and-transaction-api
  name: C. Hoare & Co. Account and Transaction Information API
  description: OBIE Read/Write Account & Transaction Information (AIS) API — lets onboarded, consented AISP third-party providers
    retrieve C. Hoare & Co. account, balance, transaction, beneficiary, standing order, direct debit, product, and party data.
    Conformant to the OBIE v3.1 Read/Write standard; FAPI-secured (OAuth2/OIDC + PSD2 SCA + mTLS).
  humanURL: https://developer.hoaresbank.co.uk/apis/ob-account-and-transaction-api-v3-1-0/docs
  baseURL: https://api.hoaresbank.co.uk/open-banking/v3.1/aisp
  tags:
  - Account Information
  - Transactions
  - Open Banking
  - AISP
  properties:
  - type: OpenAPI
    url: openapi/c-hoare-and-co-account-and-transaction-api-openapi.yml
  - type: Documentation
    url: https://developer.hoaresbank.co.uk/apis/ob-account-and-transaction-api-v3-1-0/docs
  - type: APIReference
    url: https://developer.hoaresbank.co.uk/apis/ob-account-and-transaction-api-v3-1-0/docs
  - type: Documentation
    url: https://www.hoaresbank.co.uk/open-banking
  - type: Overlay
    url: overlays/c-hoare-and-co-account-and-transaction-api-overlay.yaml
- aid: c-hoare-and-co:c-hoare-and-co-payment-initiation-api
  name: C. Hoare & Co. Payment Initiation API
  description: OBIE Read/Write Payment Initiation (PIS) API — lets onboarded, consented PISP third-party providers initiate
    domestic and scheduled payments and standing orders and retrieve payment/consent status on behalf of C. Hoare & Co. customers.
    Conformant to the OBIE v3.1 Read/Write standard; FAPI-secured (OAuth2/OIDC + PSD2 SCA + mTLS).
  humanURL: https://developer.hoaresbank.co.uk/apis/ob-payment-initiation-v3-1-0/docs
  baseURL: https://api.hoaresbank.co.uk/open-banking/v3.1/pisp
  tags:
  - Payment Initiation
  - Payments
  - Open Banking
  - PISP
  properties:
  - type: OpenAPI
    url: openapi/c-hoare-and-co-payment-initiation-api-openapi.yml
  - type: Documentation
    url: https://developer.hoaresbank.co.uk/apis/ob-payment-initiation-v3-1-0/docs
  - type: APIReference
    url: https://developer.hoaresbank.co.uk/apis/ob-payment-initiation-v3-1-0/docs
  - type: Documentation
    url: https://www.hoaresbank.co.uk/open-banking
  - type: Overlay
    url: overlays/c-hoare-and-co-payment-initiation-api-overlay.yaml
- aid: c-hoare-and-co:c-hoare-and-co-dynamic-client-registration-api
  name: C. Hoare & Co. Dynamic Client Registration API
  description: OBIE Dynamic Client Registration (DCR) proxy — lets third-party providers submit a signed Software Statement
    Assertion to register an OAuth2 client with C. Hoare & Co. as part of TPP onboarding. Published on the developer portal
    as v3.1-RC1; the harvested contract is the shared OBIE client-registration standard.
  humanURL: https://developer.hoaresbank.co.uk/apis/ob-dynamic-client-registration-proxy-v3-1-rc1/docs
  baseURL: https://api.hoaresbank.co.uk/open-banking/v3.1
  tags:
  - Dynamic Client Registration
  - OAuth2
  - Onboarding
  - Open Banking
  properties:
  - type: OpenAPI
    url: openapi/c-hoare-and-co-dynamic-client-registration-api-openapi.yml
  - type: Documentation
    url: https://developer.hoaresbank.co.uk/apis/ob-dynamic-client-registration-proxy-v3-1-rc1/docs
  - type: APIReference
    url: https://developer.hoaresbank.co.uk/apis/ob-dynamic-client-registration-proxy-v3-1-rc1/docs
  - type: Overlay
    url: overlays/c-hoare-and-co-dynamic-client-registration-api-overlay.yaml
common:
- type: DomainSecurity
  url: security/c-hoare-and-co-domain-security.yml
- type: AgenticAccess
  url: agentic-access/c-hoare-and-co-agentic-access.yml
- type: OAuthScopes
  url: scopes/c-hoare-and-co-scopes.yml
- type: Authentication
  url: authentication/c-hoare-and-co-authentication.yml
- type: Website
  url: https://www.hoaresbank.co.uk/
- type: DeveloperPortal
  url: https://developer.hoaresbank.co.uk/
- type: Documentation
  url: https://www.hoaresbank.co.uk/open-banking
- type: OpenID
  url: https://developer.hoaresbank.co.uk/.well-known/openid-configuration
- type: Support
  url: https://www.hoaresbank.co.uk/contact-us
- type: Support
  url: mailto:developersupport@hoaresbank.co.uk
- type: TermsOfService
  url: https://www.hoaresbank.co.uk/terms-and-conditions
- type: PrivacyPolicy
  url: https://www.hoaresbank.co.uk/privacy
- type: Legal
  url: https://www.hoaresbank.co.uk/legal
- type: Compliance
  url: https://register.fca.org.uk/s/firm?id=001b000000MfFMxAAN
- type: Registration
  url: https://www.openbanking.org.uk/regulated-providers/c-hoare-co-2/
- type: LinkedIn
  url: https://uk.linkedin.com/company/c-hoare-&-co
- type: Conventions
  url: conventions/c-hoare-and-co-conventions.yml
- type: Idempotency
  url: conventions/c-hoare-and-co-conventions.yml
- type: ErrorCatalog
  url: errors/c-hoare-and-co-problem-types.yml
- type: Conformance
  url: conformance/c-hoare-and-co-conformance.yml
- type: Lifecycle
  url: lifecycle/c-hoare-and-co-lifecycle.yml
- type: LLMsTxt
  url: llms/c-hoare-and-co-llms.txt
- type: DataModel
  url: data-model/c-hoare-and-co-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: MCPServer
  url: mcp/c-hoare-and-co-mcp.yml
- type: ToolCrosswalk
  url: mcp/c-hoare-and-co-tool-crosswalk.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

C. Hoare & Co.

Kin Score

APIs 3

C. Hoare & Co. Account and Transaction Information API

C. Hoare & Co. Payment Initiation API

C. Hoare & Co. Dynamic Client Registration API

MCP Servers 1

c-hoare-and-co-mcp.yml

Security Posture 2

C Hoare And Co Authentication

C Hoare And Co Domain Security