UMB Bank

UMB Bank, National Association is the primary banking subsidiary of UMB Financial Corporation (Nasdaq ticker UMBF), a Kansas City, Missouri financial services holding company. UMB is a commercial bank operating under a national (federal) bank charter supervised by the Office of the Comptroller of the Currency (OCC), with roughly $70 billion in assets following its 2025 acquisition of Heartland Financial and branches across the central United States. It offers personal, commercial, and institutional banking, including asset servicing, corporate trust, and healthcare (HSA) services. UMB runs a partner-facing open-banking and Banking-as-a-Service (BaaS) program through its Institutional & Fintech Banking group, exposing REST APIs across risk & compliance, customer onboarding, accounts, information (statements/check images), and cash management. Access is partner-gated through a consultation and contracting process — there is no public self-serve developer portal, no publicly downloadable OpenAPI/Swagger specification, and no published FDX or CFPB 1033 posture. Consumer-permissioned account data is reached primarily through the Plaid aggregator rather than a first-party public API.

UMB Bank is listed with 1 API on the APIs.io network. Tagged areas include Financial Services, Banking, United States, Open Finance, and Banking as a Service.

UMB Bank’s developer surface includes engineering blog, documentation, support, getting-started guide, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

16.3/100 emerging ▬ flat Agent 0/100 human only Heartbeat 98/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Financial Services Banking United States Open Finance Banking as a Service Institutional Banking

Kin Score

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

Composite quality — 16.3/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 4.9 / 17

Access Clarity 4.7 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 5.5 / 9

Regulatory Posture 1.7 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 0 / 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
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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

13 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
Access Clarity scores 27.6 — up to +14.5 composite points
Developer Ergonomics scores 28.6 — up to +14.3 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/umb-financial/apis.yml: open an issue on github.com/api-evangelist/umb-financial 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.

APIs 1

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

UMB Banking APIs (Open Banking / BaaS)

UMB's partner-facing open-banking and Banking-as-a-Service REST API program, documented across five areas — Risk & Compliance (retrieve questions required for new customer appli...

Security Posture 1

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

Umb Financial Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

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 5

The organization behind the API

Blog

Blog

BlogRSS

BlogRSS

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

aid: umb-financial
url: https://raw.githubusercontent.com/api-evangelist/umb-financial/refs/heads/main/apis.yml
name: UMB Bank
kind: company
description: UMB Bank, National Association is the primary banking subsidiary of UMB Financial Corporation (Nasdaq ticker
  UMBF), a Kansas City, Missouri financial services holding company. UMB is a commercial bank operating under a national (federal)
  bank charter supervised by the Office of the Comptroller of the Currency (OCC), with roughly $70 billion in assets following
  its 2025 acquisition of Heartland Financial and branches across the central United States. It offers personal, commercial,
  and institutional banking, including asset servicing, corporate trust, and healthcare (HSA) services. UMB runs a partner-facing
  open-banking and Banking-as-a-Service (BaaS) program through its Institutional & Fintech Banking group, exposing REST APIs
  across risk & compliance, customer onboarding, accounts, information (statements/check images), and cash management. Access
  is partner-gated through a consultation and contracting process — there is no public self-serve developer portal, no publicly
  downloadable OpenAPI/Swagger specification, and no published FDX or CFPB 1033 posture. Consumer-permissioned account data
  is reached primarily through the Plaid aggregator rather than a first-party public 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:
  - 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
- Open Finance
- Banking as a Service
- Institutional Banking
tags_raw:
- Financial Services
- Banking
- United States
- Open Finance
- Banking-as-a-Service
- Institutional Banking
- Financial-Services
created: '2026-07-23'
modified: '2026-10-06'
specificationVersion: '0.23'
apis:
- aid: umb-financial:umb-banking-apis
  name: UMB Banking APIs (Open Banking / BaaS)
  description: UMB's partner-facing open-banking and Banking-as-a-Service REST API program, documented across five areas —
    Risk & Compliance (retrieve questions required for new customer applications), Customer (onboard customers upon application
    review and approval), Accounts (retrieve customer account details such as address and phone), Information (retrieve artifacts
    such as statements and check images), and Cash Management (bill payment and remote deposit capture). Access is partner-gated
    via consultation; no public developer portal, base URL, or downloadable specification is published.
  humanURL: https://www.umb.com/institutional-banking/institutional-and-fintech-banking-services/banking-apis
  tags:
  - Open Banking
  - Banking as a Service
  - Payments
  - Onboarding
  tags_raw:
  - Open Banking
  - Banking-as-a-Service
  - Payments
  - Onboarding
  properties:
  - type: Documentation
    url: https://www.umb.com/institutional-banking/institutional-and-fintech-banking-services/banking-apis
  - type: Documentation
    url: https://www.umb.com/institutional-banking/institutional-and-fintech-banking-services
  - type: Onboarding
    url: https://www.umb.com/contact-us/institutional-fintech-banking-services
common:
- url: https://blog.umb.com/category/personal/
  type: Blog
- url: https://blog.umb.com/feed/
  type: BlogRSS
- type: DomainSecurity
  url: security/umb-financial-domain-security.yml
- type: Website
  url: https://www.umb.com/
- type: Documentation
  url: https://www.umb.com/institutional-banking/institutional-and-fintech-banking-services/banking-apis
- type: LinkedIn
  url: https://www.linkedin.com/company/umbbank/
- type: Blog
  url: https://blog.umb.com
- type: TermsOfService
  url: https://www.umb.com/terms-conditions
- type: PrivacyPolicy
  url: https://www.umb.com/privacy-security
- type: Support
  url: https://www.umb.com/contact-us
- type: Login
  url: https://www.umb.com/login
- type: GettingStarted
  url: https://www.umb.com/institutional-banking/institutional-and-fintech-banking-services/banking-apis
- type: LLMsTxt
  url: llms/umb-financial-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-tags-removed:
- Data Aggregation

UMB Bank API — frequently asked questions

Does UMB Bank have an API?

Yes. APIs.io lists 1 API from UMB Bank, including UMB Banking APIs (Open Banking / BaaS).

Is the UMB Bank API ready for AI agents?

UMB Bank has a Kin Score of 16.3 out of 100 (emerging) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-11-06.

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