Overview

Relay is an App and API that enable instant, low-cost bridging, swapping, and cross-chain calling. The API allows a user to pay for transactions on any chain with currency from any other chain. Additionally, the API aggregates swap routes across chains, meaning a user can pay for for swaps and cross-chain transactions by leveraging the best available liquidity directly via the API. Relay is designed for both same-chain and cross-chain excecution, and leverages the Relay Protocol to minimize gas costs and execution latency across chains. The speed and low cost makes the API ideal for price & time sensitive applications, such as payments, bridging, nft minting and gas abstraction, and cross-chain swaps. Relay features the following key properties:

Fast: Cross-chain transactions confirm in seconds.
Cheap: Designed to reduce gas and capital costs, meaning the best possible price for users.
Chain-extensible: Easily extensible to any new chain. We currently support Bitcoin, Solana, and 44+ EVM chains, including appchains.

If you want to learn more about how Relay works, you can explore additional docs here.

How to Use Relay

Using the Relay API/SDK

You can use the Relay API, SDK, and Hooks to integrate Relay directly into your app or wallet. Explore our API docs here. The following code shows a sample of how to fetch a quote from the Relay SDK:

import { getClient } from "@reservoir0x/relay-sdk";
import { useWalletClient } from "wagmi";

const { data: wallet } = useWalletClient();

const quote = await getClient()?.actions.getQuote({
  wallet,
  chainId: 1, // The chain id to bridge from
  toChainId: 7777777, // The chain id to bridge to
  amount: "100000000000000000", // Amount in wei to bridge
  currency: "0x0000000000000000000000000000", // ERC20 Address
  toCurrency: "0x0000000000000000000000000000", // ERC20 Address
  tradeType: "EXACT_INPUT",
});

Deeplinking to the Relay App

Get Relay on my Chain

Use Cases

Instant Bridging & Onboarding

Get users onto your network in seconds for pennies

Cross-chain Execution

Pay for and execute txs on any chain with currency on any chain

Introduction

Products

Use Cases

Resources

How to Use Relay

Use Cases

Instant Bridging & Onboarding

Cross-chain Execution

Introduction

Products

Use Cases

Resources

​How to Use Relay

​Use Cases

Instant Bridging & Onboarding

Cross-chain Execution

How to Use Relay

Use Cases