Send to an UMA address

This quickstart walks you through sending to an UMA address. For detailed implementation, see the full Global P2P documentation.

Overview

Grid’s Global P2P API enables payments via Universal Money Addresses (UMA). In this quickstart, you’ll:

Set up your platform
Resolve an UMA address
Send a payment

Prerequisites

A Grid API key (request sandbox access)
Basic understanding of REST APIs and UMA

What is UMA?

Universal Money Address (UMA) is an open standard that enables payments using human-readable addresses like $alice@example.com.

Step 1: Platform Configuration

Configure your platform for Global P2P payments.

Platform Configuration

Learn how to configure your platform for P2P

Step 2: Resolve UMA Address

Look up the recipient’s UMA address to get payment details.

curl -X GET "https://api.lightspark.com/grid/2025-10-13/receiver/uma/\$alice@example.com" \
  -H "Authorization: Basic YOUR_API_KEY"

Step 3: Send Payment

Execute a payment to the resolved UMA address.

# Get a quote
curl -X POST https://api.lightspark.com/grid/2025-10-13/quotes \
  -H "Authorization: Basic YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "receiver_uma": "$alice@example.com",
    "sending_currency": "USD",
    "amount": "50.00"
  }'

# Execute the payment
curl -X POST https://api.lightspark.com/grid/2025-10-13/payments \
  -H "Authorization: Basic YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "quote_id": "QUOTE_ID"
  }'