
RelayKit is Relay’s developer toolkit for adding swaps and bridging to applications.
RelayKit helps developers add swaps and bridging to their applications. It includes an SDK for building custom experiences, React hooks for fetching and executing quotes, and embeddable UI components.
RelayKit handles quote retrieval, transaction-step execution, and request tracking, allowing developers to integrate Relay’s cross-chain functionality into their own applications.



Routing API that quotes and executes swaps and deposits across chains and fiat rails from one integration.


Cross-chain interoperability API that composes bridges and swap venues into single-transaction swaps and transfers.





Embedded wallets with social login and account abstraction infrastructure.


One-click rollup deployment platform for Arbitrum, OP Bedrock, and ZKSync stacks.


Private orderflow RPC that reduces sandwich and backrun extraction on Ethereum.



Accept crypto and stablecoin deposits across any chain through a single API integration.
Cross-chain API and SDK that routes swaps, bridges, and contract calls across more than 100 chains.

Routing API that quotes and executes swaps and deposits across chains and fiat rails from one integration.

Cross-chain interoperability API that composes bridges and swap venues into single-transaction swaps and transfers.

Relay is a configurable proxy that encrypts or decrypts sensitive data in requests between applications and APIs.

Cross-chain liquidity aggregation API that routes swaps and bridging across DEX aggregators, bridges, and intent systems.

Relay is the BackOps execution engine that runs supply chain operations end to end across systems and teams.

Embedded wallets with social login and account abstraction infrastructure.

One-click rollup deployment platform for Arbitrum, OP Bedrock, and ZKSync stacks.

Private orderflow RPC that reduces sandwich and backrun extraction on Ethereum.

Programmable integrations for swaps, bridges, gas sponsorship

Accept crypto and stablecoin deposits across any chain through a single API integration.
