What are Crypto On-ramps and Off-ramps?

As regulation tightens and mainstream adoption accelerates, the ability to move seamlessly between fiat and crypto has become infrastructure, not an edge case. Payment rails, compliance frameworks, and liquidity providers now sit at the centre of every serious crypto product decision.

This guide examines how on-ramps and off-ramps function, the trade-offs between different models, and what builders and businesses need to consider when choosing the right approach today.

A crypto on-ramp allows you to acquire crypto using fiat currency. This is how you get value from pounds or euros into the crypto economy.

You can choose a crypto on-ramp provider that connects to an exchange, app, or wallet that you want to use. It connects to your credit or debit card and makes the transfer for you.

You should then see the crypto populate in your custodial or non-custodial wallet.

Standard on-ramps will allow various payments, such as credit or debit cards, bank transfers, and sometimes an app, depending on where you’re located.

On-ramps almost always require identity verification. This is to prevent fraud and ensure compliance with laws in the UK and EU. Some apps do allow a limited amount of identity verification for smaller purchases.

Most applications will allow you to acquire multiple digital assets. You may be able to buy ETH and a few other popular stablecoins before you swap for whatever you want.

The fees, speed, and limits will differ according to the on-ramp you choose and your payment method.

A crypto off-ramp allows you to convert crypto into fiat currencies like pounds and euros. This is how you get value in pounds or euros from the crypto economy.

You can consider a crypto off-ramp a bridge between your crypto wallet and the fiat economy. You send crypto through the ramp, and it gets converted to fiat at the current market price.

It’s essential because there’s no use for crypto unless you can convert it to cash you can spend, deposit, or use however you would like to.

Popular off-ramps include exchanges that will deposit cash into your account, wallet apps that have sell functionality, crypto ATMs that dispense cash, and payment cards that have crypto balances.

Most off-ramps will require identity verification. This is to prevent fraud but also to ensure regulatory compliance with the laws in the UK and EU. Some off-ramps may have limits on how much you can withdraw per day.

Most off-ramps will allow you to receive payments in various formats. This may include bank transfers, debit cards, or even mobile payment services of your choice.

Processing times will differ depending on the provider and the type of off-ramp you choose. This can take anywhere from a few minutes to up to 2-3 days.

Crypto on-ramps and off-ramps are essential because they connect the fiat economy with the crypto economy. These bridges make it possible for you to move between these two worlds in an easily digestible way.

It allows you to buy and sell crypto without complex systems or, worse, systems that are potentially dangerous.

On-ramps connect your bank account to the crypto ecosystem using your debit card or an app of your choice. This lowers the barrier for entry for individuals and small businesses.

You can always start small, and you can always see the various real-world use cases that people have created as a result.

Off-ramps make crypto valuable because you can use it in the general economy. You can pay bills and send money in fiat currency. You can even use it for business transactions.

On-ramps/Off-ramps create trust because they have specific safeguards in place through regulation and identity verification. Many of these platforms comply with various laws in their area and even include anti-fraud measures when processing payments.

This leads to better transactions that have lower error rates.

On-ramps/Off-ramps allow other services, payments, and online activities to be conducted using cryptocurrency. More merchants will adopt it if it’s easier to convert to cash.

Without on-ramps/off-ramps, cryptocurrency adoption will be slow. With them, you can seamlessly integrate it into your financial ecosystem.

These models differ by regulated fees, settlement times, transaction limits, reserve rules, and jurisdiction counts. Each option has clear numeric thresholds for identity checks, reporting, and penalties.

1. Centralised Exchanges (CEX)

The crypto exchange of old (Coinbase, Kraken, Bitstamp) remains the predominant on/off-ramp mechanism. User deposits fiat via credit card, ACH, SEPA, bank wire; the exchange credits that fiat to the user’s exchange account. The off-ramping is the reverse: user sells their crypto on the exchange and withdraws fiat to their bank account or card.

CEXes provide the highest compliance assurance (built-in KYC/AML processes).

Time to settlement varies; card purchases show up in minutes to hours; bank transfers take 1-3 business days to credit.

Fees typically are 0.5-2% for trade plus withdrawal fees (vary by method).

2. Peer-to-Peer (P2P) Platforms

Peer-to-peer platforms (Paxful, Remitano) remove the centralised exchange from the transaction; sellers and buyers negotiate on the platform. P2P platforms allow users to sell crypto using local currency and payment rails; this is especially powerful in developing economies where banking services are underserved.

Fee structures are lower than CEXes and centralised payment processors (0-1% platform fees) since spreads are negotiated between parties.

There is more counterparty risk involved and less regulatory oversight. So P2P is best for advanced users who are comfortable with the space.

Time to Settlement varies from 30 mins to 24 hours, depending on the payment method selected by the seller.

3. Payment Processors and API/Widget Integration

A new class of payment processors (Ramp Network, MoonPay, Transak, Stripe Crypto Onramp) provide APIs and Widgets for developers; API can be built into wallets, dApps, and merchant systems.

They abstract the complexity of dealing with multiple networks and local regulations.

Ramp Network has 100+ cryptos and supports 150+ countries with local payment rails (including PIX (Brazil) & SPEI (Mexico), cards, bank transfers). Transak has similar coverage with 40+ off-ramp assets spanning 20+ networks covering 60+ countries.

These services manage KYC/AML compliance, freeing the merchant platform from this burden.

There are “non-custodial” flows where the user’s private key remains her’s; crypto is sent to her wallet, not held on an exchange. API flows can be hosted (user redirected to a flow hosted by the service) or embedded (the Ramp API is embedded in the provider’s system).

Fees vary per country/region from 1-4% onramping; 1-3% off-ramping.

Time to Settlement is the same as CEX; cards = minutes/hours; Bank Transfers 1-2 Business Days.

4. Stablecoin Direct Mint/Burn Infrastructure

Stablecoins (USDC, USDT) are crypto tokens with fiat-equivalent value backed 1:1 by fiat, which allows them to maintain fiat value. The Direct Mint / Burn infrastructure represents a new frontier of on-ramping and off-ramping. A direct mint/burn relationship with a stable coin issuer allows enterprises to convert fiat to crypto at minuscule fees (0-0.5%) vs using a centralised exchange.

Direct mint/burn has distinct advantages vs traditional on/off ramping for enterprise users using crypto for treasury management, cross-border payments, and for “real-time” settlement.

Unlike traditional on/off rumping, it requires a regulatory relationship with the stable coin issuer (Circle/Tether/Paxos), so it is only available for enterprise business use customers, not individual retail users.

Time to settlement is "instant".

Compliance rules are strict; even in the EU, these enterprises adhere to MiCA regulations. These rules require full reserves, transparency and redemption rights.

5. OTC (Over-the-Counter) Desks

OTC desks are brokers for big institutional block trades executed off exchanges to avoid market impacts. They are vital for institutions moving $10m+/ day in crypto.

OTC desks operate 24/7; there are on ramps and off ramps for exchanges (no crypto/fiat exchange needed).

OTC desks accept wire transfer and SWIFT payments; time to settlement is same day within hours; sometimes overnight (1-2 business days).

Spreads (the desk’s margin) are typically 0.1-0.5% (negotiable), much lower than retail alternatives given the size of trades.

Custody can be custodial or non-custodial, depending on the provider.

The “OTC 2.0” evolution in 2025 happens as enterprises enter the space in numbers.

Crypto OTC volumes doubled over the past year.

Stablecoin-based OTC transactions increased by 147%.

Serious players (JPMorgan and Goldman Sachs) now operate OTC desks; they have adopted prime-brokerage standards for service.

OTC customers receive bank-like support.

trading experience now includes AI-based execution algorithms and Networked execution concepts (liquidity sharing).

6. Crypto Debit Cards

Crypto debit cards (Crypto.com/Coinbase Card/Bitpay ) allow users to convert crypto to fiat in real time at the point of sale; these cards work just like regular VISA/Mastercard debit cards. The only difference is that funds are held in crypto, not fiat; merchant exchanges fiat for crypto at the point of sale.

This represents a powerful form of “off-ramping.

Time to Settlement is "instant" for the user; merchant redemption occurs within normal Visa/Mastercard redemption cycles.

Fees for these cards range from 0.5 – 2% /transaction; there are no additional withdrawal fees since the merchant receives fiat.

These cards are really only of interest to users with an established large balance of crypto tokens, they are interested in spending in a day-to-day manner without converting.

7. Aggregators

Aggregator platforms connect users to multiple On/Off Ramp providers (Onramper and Rubic - will have integration soon). An Aggregator routes the user request for an on-ramp to a transaction request with multiple providers in search of the best price. Aggregators do not hold funds; they are non-custodial by design; they just pass through and charge the fees of the providers used (0.5-4%).

Aggregators open up rate discovery opportunities for users; price-sensitive users can search for better prices.

They also enable advanced flows.

Rubric’s aggregator model allows a user to purchase a crypto token using a fiat payment mechanism and simultaneously swap it to the target token in a single flow, removing step-by-step friction in the process.

Crypto on-ramps convert your fiat to crypto using a range of connected technological systems.

These systems connect payment networks, compliance requirements, liquidity providers and blockchains to perform what amounts to a single transaction.

You begin by choosing a payment method like debit card, bank transfer or real-time payment rail. The on-ramp connects to card networks or bank based systems like ACH or SEPA to request and authorise the payment.

Before the payment is processed though, the on-ramp performs KYC and AML checks. Lower-value payments are generally subject to more lenient checks than higher-value purchases which might require a government-issued ID and selfie in real time. Most providers also check for sanctions and monitor transactions for related issues.

When the payment is approved the on-ramp gives you a quote for the price of the crypto. It secures the quote for a short window usually less than two minutes as payments are processed to avoid losing the quote to price volatility.

Then the on-ramp seeks liquidity to provide you with the crypto.

The on-ramp provider could rely on pre-funded liquidity, connect to an exchange through an API or route your order to different market makers if it’s a larger trade.

Once the payment completes the provider sends the crypto to a wallet.

That wallet may be a custodial wallet or one under your control.

The confirmation times of the different blockchains will vary and you should receive your funds after a period of a few block confirmations which could take seconds to a few minutes.

Crypto off-ramps convert your crypto back to fiat and send it to your bank account using regulated money transfer rails.

To get your funds sent to your bank account, you first need to choose an off-ramp that works with the currency and method you’ll use to send the funds to your bank.

You sell your crypto, usually stablecoins, at a rate set by the platform.

After being converted to fiat, the off-ramp prepares to transfer the funds to your bank account. Most off-ramps support systems like Faster Payments, SEPA, etc. that banks use at this stage.

This process is safe, and each action step in the process is secured.

Most platforms ask you to set up two-factor authentication (2FA) before you can transfer funds out of the platform.

They also perform identity checks and monitor transactions for instances of fraud.

Typical steps in a fiat payout:

The time it takes to process a transfer depends on the method you select to get your funds to your bank account.

Some could take a few minutes, and others might require one to three business days. Fees might differ, too, based on the method you choose.

Common fees and pricing models for crypto on-ramps will determine how much you pay when you buy cryptocurrency or purchase Bitcoin. You will generally face different types of fees bundled into one quote, even if they are not itemised by the platform.

You will often pay service fees related to processing fees for each payment method you use.

If you transfer funds using a bank account, then expect a fee of about 0.5–1% of the transfer value. A credit card or debit card payment will cost you a larger amount, in the range of 1–4.5% or more per transaction. The extra costs around cards come from the fraud risk and fees charged by the card networks.

Most providers will also charge a platform or service fee on top of any service fees they charge.

This fee is related to processing costs per transaction and usually varies from 0.4%–2% per transaction. Some platforms may reduce this cost if you purchase larger amounts of Bitcoin, which might help you if you plan to make bulk purchases.

Exchange rate mark-ups and spreads are extra fees you need to consider that could affect the amount you will pay for crypto.

The mark-ups depend on market conditions when you want to buy crypto and can range from small amounts to as big as 5% or higher. Usually, you will only see this fee reflected in the quote given to you for the crypto.

If the crypto you buy is moved on-chain, then Network fees apply whether or not they are mentioned in your quote. The costs differ depending on the state of congestion of the blockchain.

Some platforms use tiered pricing, where higher volumes unlock lower percentage fees. Others use flat fees for small purchases. You can estimate your real transaction fees by adding processing fees, platform fees, spreads, FX costs, and network fees, then dividing by your purchase size.

Integration patterns for fintechs and crypto businesses specify how you integrate crypto on-ramps and off-ramps to your existing payments, banking and compliance infrastructure. You choose a pattern based on time to market, control and regulation coverage.

Fintechs typically use an API-based integration model to bolt on ramp and off-ramp flows to their applications and dashboards. You retain control of the user experience while passing on pricing, liquidity and settlement obligations to a 3rd party. Development overheads remain low, and you get better scalability across geographies.

Some firms operate using an embedded payments network, including cards linked to an entity like Mastercard. Users can migrate between crypto and fiat using a card or wallets with in-flow conversion at the point of use. It’s a great model for consumer cases or payroll.

More advanced setups prefer a bank-integrated ramp that connects directly to the user's local bank account. You gain more control over fees, the timing of settlement and the currencies you support. But it comes at the cost of increased complexity with your compliance setup and the relationship to maintain with your banking partners.

KYC and AML requirements for on-ramps and off-ramps keep your liquidity protected while verifying users and monitoring transactions. The requirements cover how you deal with onboarding, debit cards, wallets (like Trust Wallet) and what banks you can partner with.

What’s Typically Required

KYC and AML requirements for on-ramps and off-ramps include Know Your Customer requirements at the time of onboarding your users. You’ll need to collect their legal name, date of birth, and an address. Then you’ll need to verify their identity using a government-issued identity document. Regulators typically expect a live photo or other biometric identification.

You’ll need to screen customers for sanctions and politically exposed persons using relevant lists. Regulators expect this to be continuous rather than a one-off activity. You’ll need to monitor fiat and crypto transactions. This includes card payments as well as transfers between banks.

For most transactions, you’ll need to comply with the Travel Rule. This will require you to share information about the sender and receiver with other regulated services. In the EU, this will apply to all provider-to-provider transactions. In the USA, it applies when transfers exceed 1,000 USD.

Builder Responsibilities vs Provider Responsibilities

KYC and AML requirements for on-ramps and off-ramps place most of the regulatory burden on the licensed provider rather than the builder. The provider will have a money transmitter or crypto-asset service licence. They will govern the application of risk management practices. They will file suspicious activity reports and handle any communication with the regulatory authority.

As a builder or platform, you still have your own responsibilities. You’ll have to guide users through any KYC flows put in place by your provider. You cannot bypass this to ease user experience or accelerate onboarding. You’ll also have to pass on accurate transaction information, such as wallet addresses or payment details.

When you embed on-ramps, off-ramps or debit cards in your product, your product’s design choices have consequences for KYC/AML compliance. Mishandling of data or misleading flows from careless design can lead to frozen accounts, losses in liquidity or even termination of your services by your providers.

Risk Controls That Reduce Fraud and Compliance Pain

KYC and AML requirements for on-ramps and off-ramps are more effective if combined with robust risk management from the start. Tiered KYC reduces your exposure by setting lower limits for users who don’t complete full KYC verification, while encouraging increased limits for users who do complete full KYC compliance.

You’ll also want to avoid high-risk activity until all KYC/AML requirements are met. You may want to delay:

You can also adopt address checking and velocity limits as risk management tools.

You want logs that leave clear trails for auditors. Store verification records, transaction records, and decisions on whether to be included in log store entries separately. Ensure they have timestamps. This will make your entries neat and tidy when auditors are combing through them in desperate hours.

Choosing a crypto on-ramp or off-ramp for your product will require some decision-making around user on-ramping, off-ramping and payment preferences. You’ll need to decide whether users will buy crypto or of your product will handle fiat currency conversions.

You should start by mapping payment services to user needs. You’ll need to consider card payments as users will find these quicker and easier to use. Users can buy crypto via bank deposits, too. This may reduce costs.

Some providers even offer PayPal as a payment option, which can improve the user experience for those who prefer it over cards and bank links. You’ll want to evaluate their service area early on.

You should evaluate how the ramp fits into your Web3 or app experience. Embedded ramps fit nicely into wallets and dApps, while flows that require redirects are fine for simpler offerings.

If your product relies on exchanges for cryptocurrency, then you’ll need to ensure there’s adequate liquidity and good pricing.

Here’s a list of items you can use to evaluate the various options:

You may want to consider alternate routes at times. Localbitcoins, Bitcoin ATMs and OTC desks can help you support direct trades, but they usually come with very low UX and no control over activities. They’re generally not well-suited for products that rely on automation or properly displayed reports.

Choose providers that fit the developmental maturity of your product. Early offerings benefit from easy API calls you can set up quickly. As your product matures, you’ll want a provider who offers reliable pricing, high uptime, and complete ramp and off-ramp support.