About FLEX Credit Union Technology

FLEX Credit Union Technology has served credit unions since 1981, building deep roots in the community CU segment. The FLEX platform covers core processing, digital banking (FlexFi), and member services. FLEX has positioned itself as a full-service alternative to the large vendors — with a more personal support model that appeals to institutions that want to be more than a ticket number.

A long-standing independent CU core with a loyal community install base. Aerial is built to integrate directly with FLEX — your core stays exactly as it is, and your members get a modern account opening experience that converts.

Why Account Opening is Hard on FLEX

FLEX's online account opening capabilities are functional but require configuration work to deliver the conversion-optimized experience members expect in 2026
Integrating external fintech tools (ID verification, e-signature, fraud scoring) requires mapping to FLEX's API endpoints, which are less broadly documented than larger platforms
FLEX clients often have long-tenured staff who are expert in the core but less versed in modern digital integration patterns

How Aerial Integrates with FLEX

Aerial connects to FLEX through the FLEX REST API Platform. Member lookup, application data mapping, account opening, and initial funding are handled within Aerial's workflow, with a clean write-back to FLEX upon application approval. Aerial's no-code integration config means your FLEX administrator can map Aerial fields to your specific FLEX product setup without developer involvement.

Integration method: FLEX REST API Platform

Running FLEX? Let's talk.

Aerial has built integrations with FLEX specifically. We can walk you through exactly how the data flows, what your members will experience, and what your IT team will need to do (spoiler: not much).