Jack Henry & Associates
Jack Henry & Associates (Nasdaq: JKHY) is an S&P 500 financial technology company that provides core banking, payments, lending, digital banking, and fraud-prevention technology to community and regional financial institutions in the United States. Approximately 7,400 client institutions and ~7,240 associates as of fiscal year-end June 30, 2025. The developer surface centers on the Banno Digital Toolkit (Plugin Framework, Consumer API, Admin API, Authentication Framework), the jXchange and SymXchange core banking translation APIs, the Payments Orchestrator + rails (ACH, A2A/Wire, Bill Pay, RDC, Cards, Zelle), the Enterprise Event System, Operational Data Integration (ODI), and the Digital Core. Banno's developer documentation site at jackhenry.dev is mirrored at banno.github.io/open-api-docs.
Jack Henry & Associates publishes 38 APIs on the APIs.io network, including Enterprise Event System, Abilities API, Accounts API, and 35 more. Tagged areas include Financial Services, Banking, Core Banking, Digital Banking, and Payments.
The Jack Henry & Associates catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 6 Spectral governance rulesets.
Jack Henry & Associates’ developer surface includes authentication, documentation, engineering blog, GitHub presence, Stack Overflow tag, support, status page, and 13 more developer resources.
Kin Score
APIs 42
Individual APIs this provider publishes, each with its own machine-readable definition.
Enterprise Event System
Real-time, pub/sub-based event streaming surface. Lets institutions and partners react to events emitted across Jack Henry's platform (account events, transaction events, alert ...
SymXchange
Translation surface for the Symitar credit-union core. Query member accounts, post transactions, and execute PowerOn scripts.
Operational Data Integration (ODI)
Customized bulk-data query interface for institution data. Sits alongside Data Hub for deeper analytics access.
Data Hub
Provides deeper access to financial institution data for partners building analytics, BI, and personalization solutions on top of Jack Henry core systems.
Digital Core
Cloud-native core banking platform — the next-generation successor surface alongside SilverLake, CIF 20/20, and Symitar. Targets modern API-first deployments for de novo banks a...
Jack Henry & Associates Abilities API
Institution feature-flag map.
Jack Henry & Associates Accounts API
Deposit, loan, line-of-credit, and investment accounts.
Jack Henry & Associates ACH Origination API
ACH credit and debit origination.
Jack Henry & Associates Alerts API
Account and security alerts.
Jack Henry & Associates Authorization API
OAuth authorization endpoint.
Jack Henry & Associates Bill Pay API
Bill-payment payees and payments.
Jack Henry & Associates Bill Payments API
Consumer and small-business bill pay.
Jack Henry & Associates Cards API
Debit and credit card management.
Jack Henry & Associates Consumers API
Consumer account administration.
Jack Henry & Associates Customers API
Customer (CIF) records.
Jack Henry & Associates Deposit Accounts API
DDA/savings/CD deposit accounts.
Jack Henry & Associates Discovery API
OpenID Connect discovery and JWKS.
Jack Henry & Associates General Ledger API
GL account inquiry.
Jack Henry & Associates High Risk Actions API
Sensitive operations requiring elevated authorization.
Jack Henry & Associates History API
Audit and activity history.
Jack Henry & Associates Institution Offline Status API
Drive scheduled or emergency offline modes.
Jack Henry & Associates Institutions API
Public institution profile lookup.
Jack Henry & Associates Loan Accounts API
Consumer and commercial loans.
Jack Henry & Associates Marketing Ads API
Configure marketing/ad cards in the dashboard.
Jack Henry & Associates Messages API
Two-way secure messaging with the institution.
Jack Henry & Associates Payments Orchestrator API
Cross-rail routing and virtual accounts.
Jack Henry & Associates Peer To Peer API
P2P transfers via partner networks.
Jack Henry & Associates Plugin Bridge API
Bridge handshake and lifecycle.
Jack Henry & Associates Plugin Configuration API
Plugin metadata published by the host.
Jack Henry & Associates Plugin Management API
Configure external applications and plugins.
Jack Henry & Associates Remote Deposit Capture API
Consumer and commercial RDC.
Jack Henry & Associates Reports API
Operational and audit reports.
Jack Henry & Associates Routing Numbers API
Routing number validation.
Jack Henry & Associates Segments API
User segments for targeted experiences.
Jack Henry & Associates Token API
OAuth token exchange.
Jack Henry & Associates Transactions API
Posted and pending transactions per account.
Jack Henry & Associates Transfers API
Account-to-account and external transfers.
Jack Henry & Associates User API
Profile and identity of the authenticated user.
Jack Henry & Associates User Context API
Authenticated user/account context surfaced to a plugin.
Jack Henry & Associates UserInfo API
OpenID Connect UserInfo endpoint.
Jack Henry & Associates Wire Transfers API
Outbound wire requests.
Jack Henry & Associates Zelle API
Zelle peer-to-peer payments.
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Open Collections 6
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Banno Admin API
OPEN COLLECTIONBanno Authentication Framework
OPEN COLLECTIONBanno Consumer API
OPEN COLLECTIONBanno Plugin Framework
OPEN COLLECTIONJack Henry Payments
OPEN COLLECTIONjXchange REST
OPEN COLLECTIONPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Jack Henry Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Jack Henry Finops
FINOPSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Jack Henry Enterprise Event System
Real-time, pub/sub-based event system for Jack Henry platform events. Lets partners and institutions subscribe to account events, transaction events, alert events, and user-life...
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Jack Henry Context
JSON-LDSpectral Rules 6
Spectral governance rulesets for linting and validating these APIs.
Jack Henry & Associates API Rules
SPECTRALJack Henry & Associates API Rules
SPECTRALJack Henry & Associates API Rules
SPECTRALJack Henry & Associates API Rules
SPECTRALJack Henry & Associates API Rules
SPECTRALJack Henry & Associates API Rules
SPECTRALJSON Schema 7
Standalone JSON Schema definitions for this provider's data models.
Banno Account
JSON SCHEMABanno Institution Abilities Map
JSON SCHEMABanno Transaction
JSON SCHEMABanno Transfer
JSON SCHEMAjXchange Customer
JSON SCHEMAjXchange Loan Account
JSON SCHEMAJack Henry Payments ACH Transaction
JSON SCHEMAScroll for all 7
JSON Structure 3
JSON Structure definitions describing this provider's data shapes.
Banno Account Structure
JSON STRUCTUREBanno Transaction Structure
JSON STRUCTUREPayments Orchestrator Request Structure
JSON STRUCTUREExamples 10
Example request and response payloads for these APIs.
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Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 1
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 4
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 6
The organization behind the API