Built for Developers

Everything you need to integrate Relay Finance: comprehensive docs, SDKs, and a sandbox environment for testing.

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Quick Links

Jump right in

Getting Started

Set up your account and make your first API call in under 5 minutes.

API Reference

Complete reference for all endpoints, parameters, and response formats.

Code Examples

Ready-to-use code snippets for common use cases.

SDKs

Choose your language

🟨

JavaScript

npm install @relay/sdk
🐍

Python

pip install relay-sdk
🔷

Go

go get relay.finance/sdk
🐘

PHP

composer require relay/sdk
Sandbox

Test without risk

Our sandbox environment mirrors production but uses testnet tokens. Make as many API calls as you want—completely free.

  • Unlimited API calls
  • Testnet tokens provided
  • Same API as production
  • Webhook testing tools
Access Sandbox
bash 
# Production
RELAY_API_URL="https://api.relayfinance.com"

# Sandbox (for testing)
RELAY_API_URL="https://sandbox.relayfinance.com"

# Just change the URL - same API!
Resources

More ways to get help

📚 Webhooks Guide

Learn how to set up and verify webhook events.

Read guide →

📮 Postman Collection

Import our API collection and start testing immediately.

Download →

💬 Discord Community

Join our developer community for help and discussion.

Join Discord →

Ready to start building?

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