Revolut API Integration Cost: What to Expect in the UK

Revolut’s Business API is free to access — there are no API licence charges. The cost of integration is the development work: authentication, the payment logic, the safeguards that make automated money movement safe, the OTP system, the validation checks, and connecting everything to your platform. That cost ranges from £995 for a read-only reporting integration to £2,995 for a production-ready automated payout system. Here’s what drives the price and what each tier includes.

Why Revolut integration costs more than other APIs on this site

The honest reason is the stakes. A bug in a Royal Mail integration sends a label to the wrong address — inconvenient, fixable. A bug in a Revolut payments integration sends money to the wrong bank account. That’s a materially different consequence and it justifies significantly more rigorous development, testing and safeguard implementation.

The safeguards required for a production Revolut payout system — OTP verification, bank account name matching, modulus checking, payment limits, velocity checks, duplicate detection, full audit logging — are not optional extras. They are the difference between a system that can be trusted to run at scale and one that cannot. Each safeguard takes time to build and test correctly. That time is reflected in the price.

There is also a Twilio SMS component for OTP delivery that doesn’t exist in other integrations. If you don’t already have Twilio SMS integration, this needs to be set up and tested alongside the Revolut build. Twilio’s ongoing OTP costs (~5p per verification SMS) are passed directly to you — at 200 payments per month that’s around £10/month, which is negligible relative to the protection it provides.

Three build tiers

Read-only: £995

Transaction history retrieval, balance monitoring, account data sync and reporting. No outgoing payments — this tier reads from your Revolut Business account and pushes data to your platform, dashboard or accounting system. Suitable for businesses that want to automate financial reporting, pull transaction data into Xero or a custom dashboard, or monitor balances without manually logging into Revolut.

Authentication, transaction retrieval with filtering, multi-currency balance retrieval, webhook handling for incoming transaction events, error handling and logging. Timeline: approximately 3–5 days.

Payments Automation: £2,995

The full automated payout system. Outgoing payments triggered from your platform, with every safeguard required to make automated money movement safe to run in production.

What’s included: Revolut OAuth 2.0 authentication with key management; counterparty creation and management; bank account modulus validation on detail entry; Revolut counterparty name matching against customer name; payment creation with pending state before release; OTP verification via Twilio SMS before payment fires; individual and daily payment limits with breach handling; velocity checks on new counterparties; duplicate payment detection with idempotency keys; full audit log of every payment action; webhook handling for payment confirmation and failure events; failed payment alerting and order status management.

This tier is designed to be trusted with real money at volume. The safeguards are built in and cannot be bypassed by the normal payment flow. Timeline: approximately 2 weeks.

Payments + Xero: £3,495

Everything in the Payments Automation tier, plus automatic Xero reconciliation. When a Revolut payment confirms, the corresponding Xero invoice is marked paid or a bank transaction is created in Xero automatically. If you’re already using the Xero integration on this site, adding Revolut reconciliation is a natural extension that keeps your accounts current without manual matching.

The £500 uplift from the Payments Automation tier covers: Xero OAuth connection, payment-to-invoice matching logic, Xero payment creation on Revolut confirmation webhook, and Revolut payout bank transaction creation in Xero. Timeline: approximately 2.5 weeks.

What drives the cost up beyond the base tier

High-value payment thresholds. If individual payments regularly exceed £1,000, the safeguards need to be more sophisticated — dual approval rather than single OTP, more conservative velocity limits, stricter name matching tolerance. This adds build time.

Complex order management system integration. Connecting the Revolut payment system to a clean modern platform is straightforward. Integrating with a bespoke order management system, a legacy admin panel with limited API access, or a platform with unusual data structures takes more time.

Multi-currency payouts. Paying international customers in their local currency from Revolut’s multi-currency accounts adds currency selection logic, FX rate handling and additional validation to the payment flow.

Bulk batch payments. Paying large numbers of recipients in a single scheduled batch rather than individually-triggered payments requires different architecture — a job queue, rate limit management, and batch-level reporting alongside individual payment records.

Ongoing costs

Revolut’s API is free to access. Twilio SMS for OTP verification costs approximately 5p per payment verification. At 100 payments per month: £5. At 500 payments per month: £25. Negligible relative to the value of the automation and the protection the OTP provides.

An optional retainer of £49/month covers API monitoring, Revolut API version updates and Twilio credential rotation. Given the financial nature of this integration, proactive monitoring is worth more here than for most other integrations on this site — knowing immediately if the payment system stops working, rather than finding out when a customer contacts you, has real business value.

For the full service details, see the Revolut Business API integration service. For how the automated payment flow works in detail, see automating payments with the Revolut API. For the complete API guide, see Revolut Business API integration guide.

Related posts

• Revolut Business API integration: a complete guide
• Automating payments with the Revolut Business API

How this compares to alternatives

The main alternative to Revolut API for automated customer payouts is a dedicated payout platform such as Wise Business, Modulr, or Currencycloud. These services are designed specifically for high-volume payouts and often include their own KYC and account validation tools. They are more expensive per transaction and involve more complex integration and approval processes. For businesses already banking with Revolut Business, the Revolut API route is more direct, more cost-effective and simpler to maintain.

Manual bank transfers via Revolut’s dashboard have no direct cost but carry significant operational overhead and error risk at volume. A business making 100 manual payments per day is spending 2–3 hours on payment processing alone, with human error risk on every payment. At the labour cost of that time, the Revolut automation integration pays for itself within weeks.

Some businesses use Stripe Payouts or PayPal Payouts for customer payments. These work but have meaningful per-transaction fees that compound at volume. Revolut Business payments to UK bank accounts are typically included in the business plan rather than charged per transaction, making the cost per payment significantly lower at scale.

Is this the right solution for you?

The Revolut payments automation integration is the right choice if: you already use Revolut Business as your primary business banking platform; you need to make outgoing payments to customers or contractors from that account programmatically; your payment volumes make manual processing impractical; and you need robust safeguards to prevent incorrect or fraudulent payments.

It is not the right choice if: you need to collect payments from customers (use Stripe or GoCardless); you’re not on Revolut Business (the API only works with Revolut Business accounts); or your payment volumes are low enough that manual processing is manageable and the build cost isn’t justified.

If you need help with a custom API integration for your website or business application, I can help. I build bespoke API integrations for UK businesses. See API integration pricing or get in touch to discuss your project.