Cross-border payments, built for developers.

Build payment flows with a simple API and stablecoin rails underneath.

Integrate global payment flows through a developer-friendly API. Create payments, track transactions, and receive real-time webhook notifications without building directly against blockchain infrastructure.

One API. Payment rails underneath.

Vaayu gives your application a simple interface for sending and tracking stablecoin payments.

You work with familiar REST APIs. Vaayu handles the underlying payment infrastructure.

Make payments

Send a payment to a recipient wallet using the payment API.

Track transactions

Check the latest status of a payment from your application.

Receive webhooks

Get notified when supported payment events occur.

How it works

Your application
       │
       ▼
   Vaayu API
       │
       ▼
Stablecoin payment rail
       │
       ▼
   Recipient

Your application talks to Vaayu through the API. The underlying blockchain and stablecoin mechanics stay behind the integration.

Build in the sandbox

Start without real funds.

Vaayu’s current sandbox uses testnet infrastructure and a Vaayu test wallet so you can build and validate your integration before moving beyond the development environment.

Sandbox only: Do not use real funds or production credentials with the current test environment.

Designed for developers

Simple authentication

Use an API key to authenticate requests from your application.

Payment status

Submit a payment and query its latest status using the transaction endpoint.

Event-driven integrations

Register a webhook endpoint so your application can react to payment events.

Start with your first payment

1. Get an API key

   Create your merchant/API credentials using the registration flow.

2. Register a webhook

   Connect a webhook endpoint if your application needs payment notifications.

3. Send a payment

   Submit a test payment using the payment endpoint.

4. Track the transaction

   Query the transaction to see its latest status.

Read the Quickstart →