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Aerosync

Make confident decisions with
real-time financial data

One bank connection unlocks a full view of your users' accounts for payments, underwriting, and whatever you build next.

Talk to an expert
→
Try the sandbox
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Aerosync bank-linking flow inside a sample app, showing linked checking accounts and verified account owner, account age and account status.

Connect more accounts.
Unlock better insights.

Instant onboarding

New users link and verify their financial account in under 10 seconds.

Reliable data

Retrieve balance, cash flow, and identity data from over 12,000 banks and credit unions.

Smarter decisions

Power underwriting, onboarding, and payment decisions with live account data.

How it works

Authenticate and connect
in under 10 seconds.

Finflow app — light theme Finflow app — dark theme
Branded experience

Designed for your brand.
Built to convert.

White-label your authentication flow to build trust and improve account connection rates.

Reduce total onboarding time by 26%.
Increase successful account connections.
Build trust with branded onboarding.
Optimize conversion with A/B testing.
Manual verification

Connect any bank account
without micro-deposits

Enable manual verification for edge cases where open connections aren't available and verify accounts at 98% of US banks.

Increase onboarding completion.
Verify accounts in the same session users link them.
Reduce failed or risky account submissions.
Expand account-linking coverage.
Instant data access

See the full
financial picture

Retrieve financial data to verify accounts, understand behavior, and make sharper decisions.

Pull real-time cash flow, identity, and balance data.
Access two years of spending and income history.
Keep connections alive with re-linking flows.
Return data with industry-leading speed.
Customer stories

“We love Aerosync. Its suite of tools have allowed PrizePicks to greatly increase customer conversions while simultaneously lowering costs on ACH returns and bad data.”

Jay Deuskar
Co-Founder & CTO
Network

Smarter with every transaction

Millions of users and billions of data points work together to improve conversion and performance with every payment.

20%
conversion lift
12k
institutions
2 years
of account data history
5B+
interactions
60%
fewer returned payments
Light globe line illustration used as a background for bank network labels.

Built for however you use
financial data

Cash flow underwriting
Fintechs
Payments
Banks and credit unions
Cash flow underwriting

Make faster, more accurate
lending decisions

Go beyond static credit data with faster, more accurate financial insights.

Link borrower accounts in one step to cut onboarding friction.
Access 24 months of financial history to assess affordability beyond credit scores.
Continuously refresh account insights to monitor risk across the loan lifecycle.
Fintech

Build financial products
your users trust

Seamlessly connect, verify, and retain users without building bank infrastructure from scratch.

Link accounts in seconds to boost onboarding conversion.
Access live and historical data to power underwriting, risk, and personalization.
Reuse persistent connections to speed up returning users.
Payments

Scale payments
your customers will love

Fewer drop-offs, faster payouts, and data you can actually trust—all from one connection.

Verify users without micro-deposits to increase funded account conversion.
Move users from account connection to payment in seconds to create sticky customers.
Lower bad data returns by up to 65%, with less return risk on every transfer.
Banks and credit unions

Turn onboarding
into deposits

Reduce onboarding friction and accelerate funding with real-time account verification.

Verify users instantly to boost funded account conversion.
Move onboarding to deposit in seconds.
Lower bad data returns by up to 65% and reduce ACH risk.
Easy integration

All you need is a
developer and a day

Bring your users with you

Access unlimited user migrations for your existing bank connections via API.

View API docs →

Customize everything

Control branding, available institutions, and user journeys with multiple widget configurations tailored to your brand.

Integrate and make calls today

Get started with a developer and a sandbox account. Test a live integration today.

Start building →
Cost savings

Cut costs
without cutting corners

Fewer redundant charges and no hidden fees mean you pay only for the data you actually use.

Scale usage without overage or monthly fees.
Avoid duplicate charges on repeat API calls.
Lower the cost of first-time authentication.
Bundle auth and identity into one charge.