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Stop Losing Money to Failed Payments

Mintly's bank validation API helps businesses reduce payment errors by up to 90%, saving thousands in fees and admin time. The best value modulus check software in the UK.

20M+

Accounts checked

99.95%

Service Uptime

<50ms

Super Fast
Mintly can be used as a sort code checker and bank account check tool

Lower Your Costs

Reduce failed payments by up to 90%. Save time & money every month.

All UK BanksIBAN supportedfrom 0.8p per check

Better User Experience

Instant feedback means improved customer experience. Get customers paying sooner.

Super fastReal-time checksAlways available

Stay Compliant

Meet your BACS requirements for data validation. Weekly data updates ensure accuracy.

GDPR compliantCyber EssentialsOfficial Data

Trusted by businesses across the UK

See what our customers say about Mintly's bank validation services.

Try it yourself

See Mintly in action - validate a UK bank account for free, no registration required.

Try our account and sort code checker

Must be 6 digits
Must be between 6 and 10 digits
PDF Download sampleGet your free PDF "The Finance Manager's 5-Minute BACS Compliance Checklist"
Your short but handy guide to streamlining BACS payments

How it works

Sign up to our bank account check API

Create your account and choose a plan that suits your needs. Enjoy full functionality during the trial period with no commitment required.

Try our sort code, bank account, IBAN and SWIFT check tools

Access Mintly's intuitive web tools or integrate our robust API into your systems. Collaborate effortlessly by inviting team members to use the tools with you.

Save money as invalid bank accounts are checked

Experience fewer payment failures and enhanced cash flow by ensuring account details are accurate before processing transactions.

Built for developers and business teams alike

Whether you need API integration or easy-to-use web tools, Mintly has you covered.

For Developers

RESTful API Integration

Modern OpenAPI 3.0 specification with comprehensive documentation. Get started in minutes with code examples in Node.js, Python, PHP, and more.

For Business Teams

Easy-to-Use Web Portal

No technical knowledge required. Simply log in and start validating bank accounts, IBANs, and SWIFT codes through our intuitive interface.

  • Single or bulk validation
  • CSV upload & export
  • Team collaboration features
  • Usage analytics dashboard

Everything you need for bank account validation

UK & Ireland Coverage

Validate all UK and Ireland bank accounts, building societies, and credit unions. Weekly data updates ensure accuracy.

Modulus Checking

Advanced modulus 10 and 11 algorithms verify account number validity against the latest BACS specifications.

Payment Type Detection

Know which payment methods each account supports: BACS, CHAPS, Faster Payments, Direct Debit, and more.

Global IBAN Validation

Validate IBAN for all participating countries worldwide. Support for 89 countries.

Simple, transparent pricing

Try Mintly free for 14 days. No credit card required. No commitment.

Start Your Free Trial Today

  • 14-day free trial, no credit card required
  • Evaluation of our tools and API
  • Cancel anytime, no contracts
  • Best value paid plans in the UK, from 0.8p per check

Ready to eliminate failed payments?

Join hundreds of businesses saving thousands on payment errors. Start your free 14-day trial today.

Want to find out more?

Got a question for us? Contact us for a friendly chat about integrating into your platform or to find out about our services.