BankUnited

BankUnited, N.A. is a national bank (OCC-chartered National Association) and the principal subsidiary of BankUnited, Inc. (NYSE: BKU), a bank holding company headquartered in Miami Lakes, Florida. With roughly $35 billion in total assets and banking centers across Florida, the New York metro area, Dallas, Atlanta, New Jersey and North Carolina, it is a mid-size regional commercial and consumer bank focused on business banking, commercial lending and treasury/depository services. On the open-finance front, BankUnited runs a first-party developer portal branded the "API Experience Hub" (developer.bankunited.com), a Salesforce Experience Cloud site fronting a MuleSoft Anypoint Exchange catalog with self-service registration, OAuth application provisioning and API contracts; the specific API products and any OpenAPI specifications sit behind portal registration/login rather than being openly downloadable. No FDX-conformant public data-access API or published CFPB Section 1033 posture is documented; consumer-permissioned account data is reached primarily through third-party aggregators (e.g. Plaid) rather than a public first-party consumer data API.

BankUnited is listed with 1 API on the APIs.io network. Tagged areas include Financial Services, Banking, United States, Regional Bank, and Commercial Banking.

BankUnited’s developer surface includes authentication, signup flow, developer portal, engineering blog, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

24.1/100 emerging ▬ flat Agent 11/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Financial Services Banking United States Regional Bank Commercial Banking Open Finance

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 24.1/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 4.0 / 17

Access Clarity 4.7 / 17

Operational Transparency 1.5 / 11

Contract Governance 1.9 / 10

Discoverability 6.2 / 9

Regulatory Posture 5.7 / 15

Agent readiness — 11/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 23.8 — up to +15.2 composite points
Access Clarity scores 27.6 — up to +14.5 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/bankunited/apis.yml: open an issue on github.com/api-evangelist/bankunited to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
US Banks and Credit Unions (FDIC BankFind + NCUA insured credit unions)	regulated	19.2 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

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

BankUnited API Experience Hub

BankUnited's first-party developer portal ("API Experience Hub"), a Salesforce Experience Cloud site backed by MuleSoft Anypoint Exchange. Provides self-service developer regist...

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Bankunited Authentication

oauth2/openIdConnect · 2 schemes

SECURITY

Bankunited Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Bankunited Scopes

36 scopes · authorizationCode

36 scopes

SCOPES

Resources

Get Started 4

Portal, sign-up, and the first successful call

Signup

Signup

Login

DeveloperPortal

DeveloperPortal

Portal

Portal

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

Authentication

OAuthScopes

Security

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

aid: bankunited
url: https://raw.githubusercontent.com/api-evangelist/bankunited/refs/heads/main/apis.yml
name: BankUnited
kind: company
description: 'BankUnited, N.A. is a national bank (OCC-chartered National Association) and the principal subsidiary of BankUnited,
  Inc. (NYSE: BKU), a bank holding company headquartered in Miami Lakes, Florida. With roughly $35 billion in total assets
  and banking centers across Florida, the New York metro area, Dallas, Atlanta, New Jersey and North Carolina, it is a mid-size
  regional commercial and consumer bank focused on business banking, commercial lending and treasury/depository services.
  On the open-finance front, BankUnited runs a first-party developer portal branded the "API Experience Hub" (developer.bankunited.com),
  a Salesforce Experience Cloud site fronting a MuleSoft Anypoint Exchange catalog with self-service registration, OAuth application
  provisioning and API contracts; the specific API products and any OpenAPI specifications sit behind portal registration/login
  rather than being openly downloadable. No FDX-conformant public data-access API or published CFPB Section 1033 posture is
  documented; consumer-permissioned account data is reached primarily through third-party aggregators (e.g. Plaid) rather
  than a public first-party consumer data API.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - scopes
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Financial Services
- Banking
- United States
- Regional Bank
- Commercial Banking
- Open Finance
tags_raw:
- Financial Services
- Banking
- United States
- Regional Bank
- Commercial Banking
- Open Finance
- Financial-Services
created: '2026-07-23'
modified: '2026-07-23'
specificationVersion: '0.23'
apis:
- aid: bankunited:bankunited-api-experience-hub
  name: BankUnited API Experience Hub
  description: BankUnited's first-party developer portal ("API Experience Hub"), a Salesforce Experience Cloud site backed
    by MuleSoft Anypoint Exchange. Provides self-service developer registration, OAuth application provisioning and API contract
    management. The underlying API catalog and any OpenAPI/RAML specifications require portal registration/login and are not
    publicly downloadable; no anonymous API reference is exposed.
  humanURL: https://developer.bankunited.com/s/
  baseURL: https://developer.bankunited.com/aeh/
  properties:
  - type: Documentation
    url: https://developer.bankunited.com/s/
  - type: Signup
    url: https://developer.bankunited.com/aeh/s/login
  - type: Authentication
    url: authentication/bankunited-authentication.yml
  - type: OpenIDConnect
    url: https://developer.bankunited.com/aeh/.well-known/openid-configuration
common:
- type: DomainSecurity
  url: security/bankunited-domain-security.yml
- type: WellKnown
  url: well-known/bankunited-well-known.yml
- type: Authentication
  url: authentication/bankunited-authentication.yml
- type: OAuthScopes
  url: scopes/bankunited-scopes.yml
- type: Conformance
  url: conformance/bankunited-conformance.yml
- type: LLMsTxt
  url: llms/bankunited-llms.txt
- type: Signup
  url: https://developer.bankunited.com/aeh/s/login
- type: Login
  url: https://developer.bankunited.com/aeh/s/login
- type: Website
  url: https://www.bankunited.com/
- type: DeveloperPortal
  url: https://developer.bankunited.com/s/
- type: Portal
  url: https://developer.bankunited.com/aeh/s/
- type: GitHubOrganization
  url: https://github.com/bankunited
- type: LinkedIn
  url: https://www.linkedin.com/company/bankunited
- type: Blog
  url: https://www.bankunited.com/resource-corner
- type: TermsOfService
  url: https://www.bankunited.com/legal
- type: PrivacyPolicy
  url: https://www.bankunited.com/privacy
- type: Security
  url: https://www.bankunited.com/security
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-tags-removed:
- Developer Portal

BankUnited API — frequently asked questions

Does BankUnited have an API?

Yes. APIs.io lists 1 API from BankUnited, including BankUnited API Experience Hub.

How do I authenticate with the BankUnited API?

BankUnited documents its authentication (oauth2/openIdConnect · 2 schemes). The details are profiled on APIs.io as Bankunited Authentication.

Is the BankUnited API ready for AI agents?

BankUnited has a Kin Score of 24.1 out of 100 (emerging) and an Agent Readiness score of 10.8 (agent-aware), scored by API Evangelist on 2026-11-06.

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