Build, Launch, and Scale with APIs Built for Fintech

Whether you’re launching from scratch or scaling an existing product, AET’s modern API infrastructure powers custody, simplifies compliance, and builds investor trust—so you can stay focused on growing your customer base.

A Modern Custodian That Won’t Hold You Back

Many custodians claim to be tech-forward. But under the hood, they’re still running on legacy infrastructure with bolted-on APIs, causing delays, workarounds, and UX trade-offs for your team.

AET was built differently. Our custody stack is modern and flexible, designed to embed into your platform. We empower you to offer a best-in-class investor experience, without wrestling with outdated tools or waiting on vendor roadmaps.

What You Can do with AET:

Open qualified accounts (including IRAs) directly within your product
Support investments in private deals, funds, real estate, and crypto
Enable seamless custody and reporting—no manual workflows
Build intuitive onboarding and asset management flows that match your brand

Why Fintech Leaders Partner with AET

Flexible Custody

Flexible Custody

Handle a wide range of private investments—from real estate to funds to digital assets —customized to your platform’s flow.

Tax-Advantaged Investing, Built In

Tax-Advantaged Investing, Built In

Let users invest with IRAs, rollovers, and retirement accounts without adding operational complexity. We manage the backend.

True API-First Architecture

True API-First Architecture

Built from the ground up for integration. RESTful, JSON-based endpoints make account creation, transaction processing, and document handling fully automatable.

Compliance Without Compromise

Compliance Without Compromise

We shoulder the regulatory burden for IRA custody, so you don’t have to. Backed by experienced support and white-label-ready service.

Built for Innovators Like You

AET’s custodial infrastructure supports the platforms defining the future of private market access:

Private market investing apps

Real estate & DST platforms

Capital raise and crowdfunding portals

Marketplace fintechs supporting qualified funds

Let’s build the future of private market access together.

Whether you’re launching a new product or enhancing an existing offering, AET gives your platform the tools to scale.

Next Step

Schedule a demo.

Get Started