Huntington Bancshares website screenshot

Huntington Bancshares

Huntington Bancshares is a regional bank holding company that provides full-service consumer and business banking, insurance, investment, mortgage, equipment leasing, and commercial banking services. Huntington operates a developer portal at hnbdevportal.huntington.com built on Apigee X, offering API-first treasury management solutions with over 500 interfaces that process more than 10 million transaction events daily.

Huntington Bancshares publishes 3 API contracts indexed on the APIs.io network: Accounts API, Payments API, and Transactions API. Tagged areas include Banking, ERP Integration, Open Banking, Payments, and Treasury.

Huntington Bancshares’ developer surface includes authentication, developer portal, and 10 more developer resources.

🌐 Visit website📡 Profile data on GitHub
27.5/100 thin ▬ flat Agent 21/100 agent aware Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0
AccessFreeSelf serve⚡ Free to try
1 published contract
BankingERP IntegrationOpen BankingPaymentsTreasuryFortune 1000

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Payments & Card Management
BC-1340
Payments
POST /payments
Deposits & Savings Management
BC-1330
Accounts
GET /accounts GET /accounts/{accountId}/balances

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0
Composite quality — 27.5/100 · thin
Contract Quality 9.5 / 19
Developer Ergonomics 3.2 / 15
Access Clarity 2.4 / 15
Operational Transparency 0.5 / 10
Contract Governance 0.0 / 9
Discoverability 5.0 / 8
Regulatory Posture 3.9 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 21/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 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 7 / 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
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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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/. 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 github.com/api-evangelist/huntington-bancshares: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

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

Huntington Bancshares Accounts API

Account information and balances

Huntington Bancshares Payments API

Payment initiation and management

Huntington Bancshares Transactions API

Transaction reporting and history

Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Huntington Bank Treasury Management Accounts API

OPEN COLLECTION

Huntington Bank Treasury Management Accounts Payments API

OPEN COLLECTION

Huntington Bank Treasury Management Accounts Transactions API

OPEN COLLECTION

Huntington Bank Treasury Management API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Huntington Bancshares Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Huntington Bancshares Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Huntington Bancshares Finops

FINOPS

Security Posture 2

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

Huntington Bancshares Authentication

oauth2 · 1 scheme

SECURITY

Huntington Bancshares Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Huntington Bancshares Scopes

3 scopes · clientCredentials

3 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Huntington Bancshares Agentic Access

4 operations · 1 acting

4 operations · 1 acting

AGENTIC

Press 5

Recent news and press coverage referencing this provider.

Huntington Launches Huntington Heads Up® with AI to ...

Huntington Bank Announces Treasury Management ...

BANK INVESTMENT AIMS TO IMPROVE REVENUE ...

Veuu Announces Partnership with Huntington Bancshares ...

Huntington Launches Huntington Heads Up® with AI to ...

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal
Portal

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap

Source (apis.yml)

apis.yml Raw ↑ 
aid: huntington-bancshares
name: Huntington Bancshares
description: Huntington Bancshares is a regional bank holding company that provides full-service consumer and business banking,
  insurance, investment, mortgage, equipment leasing, and commercial banking services. Huntington operates a developer portal
  at hnbdevportal.huntington.com built on Apigee X, offering API-first treasury management solutions with over 500 interfaces
  that process more than 10 million transaction events daily.
url: https://raw.githubusercontent.com/api-evangelist/huntington-bancshares/refs/heads/main/apis.yml
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/huntington-bancshares.png
tags:
- Banking
- ERP Integration
- Open Banking
- Payments
- Treasury
- Fortune 1000
created: '2026-03-21'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: huntington-bancshares:huntington-bancshares-accounts-api
  name: Huntington Bancshares Accounts API
  description: Account information and balances
  humanURL: https://hnbdevportal.huntington.com/
  baseURL: https://api.huntington.com
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/huntington-bancshares-accounts-api-openapi.yml
  - type: Portal
    url: https://hnbdevportal.huntington.com/
- aid: huntington-bancshares:huntington-bancshares-payments-api
  name: Huntington Bancshares Payments API
  description: Payment initiation and management
  humanURL: https://hnbdevportal.huntington.com/
  baseURL: https://api.huntington.com
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/huntington-bancshares-payments-api-openapi.yml
  - type: Portal
    url: https://hnbdevportal.huntington.com/
- aid: huntington-bancshares:huntington-bancshares-transactions-api
  name: Huntington Bancshares Transactions API
  description: Transaction reporting and history
  humanURL: https://hnbdevportal.huntington.com/
  baseURL: https://api.huntington.com
  tags:
  - Transaction
  tags_raw:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/huntington-bancshares-transactions-api-openapi.yml
  - type: Portal
    url: https://hnbdevportal.huntington.com/
common:
- type: Plans
  url: plans/huntington-bancshares-plans-pricing.yml
- type: RateLimits
  url: rate-limits/huntington-bancshares-rate-limits.yml
- type: FinOps
  url: finops/huntington-bancshares-finops.yml
- type: CapabilityMap
  url: capabilities/huntington-bancshares-capability-edges.yml
  name: Huntington Bancshares Business Capability Map
- type: AgenticAccess
  url: agentic-access/huntington-bancshares-agentic-access.yml
- type: DomainSecurity
  url: security/huntington-bancshares-domain-security.yml
- type: Authentication
  url: authentication/huntington-bancshares-authentication.yml
- type: OAuthScopes
  url: scopes/huntington-bancshares-scopes.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/huntington-national-bank
- type: Portal
  url: https://hnbdevportal.huntington.com/
- type: Website
  url: https://www.huntington.com/
- type: PrivacyPolicy
  url: https://www.huntington.com/privacy
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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