What the API Covers

Carret's API is built around three core capabilities:

Fiat-to-Crypto Onramps -

Let users deposit in their local currency and receive stablecoins or crypto directly. Carret handles the payment rail connectivity, FX conversion, and compliance on the backend. Whether it's a UPI transfer in India, an ACH payment in the US, or a Dirham bank transfer in the UAE, the onramp experience is local and familiar for the end user.

Crypto-to-Fiat Offramps -

Enable users or businesses to convert crypto back into local currency and settle to a bank account. This is particularly valuable for remittances, cross-border payouts, and treasury settlement, where funds need to arrive in a specific fiat currency, in a specific country, fast.

Global Settlement Infrastructure -

For businesses processing cross-border transactions at scale, Carret provides the underlying rails to move value between corridors with near-instant settlement. What traditionally required correspondent banking chains, cut-off times, and 3–5 day settlement windows can now happen in minutes.

Supported Corridors and Currencies

Carret currently supports three of the world's most active payment corridors:

1. United States - ACH and Fedwire, settling in USD
2. India - UPI and IMPS, settling in INR
3. UAE - UAEFTS and UAEDDS, settling in AED

This covers the US–India remittance corridor (one of the largest in the world), the growing UAE–India corridor, and US dollar-based settlement for global platforms.

How Integration Works

Carret is built for speed. The integration process has three steps:

Integrate -

Connect via Carret's API or drop-in widget. Most platforms go live in hours, not weeks. No months-long bank onboarding, no custom development per corridor.

Enable on/offramps and payments -

Once live, your users can buy, sell, or send crypto using local fiat currencies across supported corridors. The API handles the routing, conversion, and compliance checks in the background.

Track activity and settlements -

A unified dashboard gives real-time visibility into transactions, exchange rates, and payouts. Everything in one place, across all corridors.

Compliance Built In

Carret is FIU compliant – meaning the platform meets the regulatory requirements set by India's Financial Intelligence Unit for handling crypto-linked transactions. Compliance isn't an add-on; it's built into every API call. KYC, AML checks, and transaction monitoring are handled as part of the infrastructure, so your team doesn't need to manage this separately across jurisdictions.

Who It's Built For

Fintechs and Neobanks -

Looking to offer cross-border remittances or crypto payment features without rebuilding their payments stack from scratch. Carret's API adds global onramp and offramp capability as a modular layer on top of what you already have.

Crypto Exchanges -

That need fiat rails to grow liquidity. Users won't stay on an exchange that makes it hard to deposit in their local currency or withdraw funds to their bank. Carret bridges that gap with local payment methods across supported markets.

Wallets -

That want to let users buy and sell crypto with a few taps in their local currency. The API or widget integrates directly into the wallet experience, making fiat-to-crypto conversion feel native.

Web3 Projects -

That want to onboard non-crypto natives. Carret lets users interact with a dApp using their local currency – no wallet setup or token purchase required upfront – dramatically lowering the barrier to entry.

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Why It Matters

The alternative to using an API like Carret's is building it yourself – which means establishing banking relationships in each country, navigating local regulatory frameworks, building reconciliation tooling, and maintaining all of it as regulations change. For most product teams, that's 12–18 months of work before the first user transaction.

Carret compresses that to a single integration. Your engineering team focuses on your core product. Carret handles the rails, compliance, and settlement.

For businesses that need to move money globally – fintechs remitting between the US and India, exchanges serving users across multiple geographies, or Web3 platforms trying to onboard the next billion users,  that's not a minor convenience. It's the difference between launching this quarter and launching next year.