Guides: core banking

FedNow participation: how banks and cores connect
FedNow participation is set per routing number, and the core must post around the clock.

Ledger as a service: how fintechs keep the books
What a ledger API records, how it differs from a bank core, and why sponsor banks ask for its balances.

How to Choose a Core Banking System: A Selection Guide
Deployment, APIs, sub-accounts and exit terms decide core fit, and regulators now watch vendor contracts too.

Core banking migration: how banks switch core systems
Regulators now weigh deconversion fees and exit terms when they decide how closely to supervise core providers.

What Is API Banking? Bank APIs, BaaS and Open Banking
Three ways banks open accounts and payments to software, and where the CFPB open banking rule stands in 2026.

What Is Core Banking? Systems, Providers, Conversions
The ledger behind every bank account, who supplies it in the US, and why moving to a new core is a major project.
