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Relay is onchain payments infrastructure that lets payment service providers add universal onchain acceptance and payouts through a single integration. Consumers and businesses can spend any onchain currency they hold and Relay routes, converts, and settles to your chosen asset and chain.

85+ Chains

Every asset on every major network

< 3s Settlement

P50 fill time across all routes

$20B+

Volume enabled to date

100M+ Txs

Processed across the network

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Use Cases

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Pay-ins or Commerce

Accept funds in any asset on any of 85+ chains — or the same chain — and receive your settlement asset (e.g., USDC on Base or Solana). Two integration paths: Connected or embedded wallet payments — Use the standard quote and deposit flow when your user connects a wallet. Quote, deposit, fill. Deposits are optionally gasless, with fixed or market rates. Deposit addresses — Generate one deposit address per order for wallet-less acceptance. Anything sent to it is routed and converted to your settlement asset automatically, with no frontend integration on the payer side. Deposit addresses also power QR and scan-to-pay for cross-chain acceptance, and are extremely valuable for centralized exchange payments.

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Disbursements

Run pay-ins in reverse to send funds out — marketplace seller payouts, creator and worker disbursements, and cross-border payout — to any chain and asset from your settlement balance, through the same integration.

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Compliance & Screening

Relay screens every transaction in real time against multiple independent blockchain-analytics providers and a continuously maintained internal blocklist, enforcing OFAC and other global sanctions requirements. Screening covers every party to a transfer — sender, recipient, and fee recipient, plus the depositing wallet on deposit-address flows — not just a single address. A match on any party blocks the quote and fill. See Compliance for details.

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Features

Exact-output settlement — Specify the exact amount you need to receive; Relay sizes the input. No slippage, no shortfalls. Price stabilization — Lock a fixed rate (e.g. 1:1) on stablecoin pairs, or sponsor fees so the user receives the full market-rate output. Removes exchange rate surprises from settlement. Gasless execution — Your users transact without spending gas directly. This can be used for Relay deposits or more genreally for any onchain gasless execution. Fee sponsorship — Pay or subsidize gas or spreads on your users’ behalf, and let them pay in the asset they already hold. App fees — Attach your own fee to any flow and collect it at settlement, automatically settled in USDC on Base. MEV protection — Swaps are routed for best execution. Webhooks and tracking — Lifecycle events are pushed to your backend (HMAC-signed), and every payment carries a requestId for reconciliation. Reliability — 99.9%+ fill success with sub-3-second settlement on supported routes.

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Pricing

Relay’s cost is transparent in every quote. The expandedPriceImpact object breaks each payment into its execution, swap, and Relay fee components, plus any app fee you add — so your finance team can model unit economics exactly. Integrators above a volume threshold qualify for a revenue share on the Relay fee. See Fee Structure.

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Security

Relay’s contracts are independently audited, and the protocol runs an ongoing bug bounty. Review the Contract Audits and Bug Bounty before you integrate.

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Get Started

Add cross-chain pay-ins and disbursements to your platform through a single integration. The Quote API is the core endpoint behind both flows.