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Buy & Sell Crypto with Cash by Mail

Buy & Sell Crypto with Cash by Mail in the USA

Use Cash by Mail to buy or sell crypto like Bitcoin (BTC), Ethereum (ETH), Tether (USDT), and Litecoin (LTC) through KrabX. You ship cash or send crypto, and KrabX settles the trade from its own inventory with documented, video-logged handling.

FinCEN-registered MSB Non-custodial, two-party trades Video-logged cash intake & payout
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Serving eligible U.S. customers outside New York and jurisdictions where our services are not permitted or would require licensing we do not hold.

How Cash by Mail trades work with KrabX

Every Cash by Mail trade follows a clear process so you know what happens before any cash or crypto moves, whether you’re buying BTC, ETH, USDT, LTC, or another supported asset.

1

Open chat & confirm Cash by Mail is appropriate

Tell us what you want to do (buy or sell), which asset (for example Bitcoin, Ethereum, USDT, or Litecoin), the amount, and that you plan to use Cash by Mail.

2

Verification thresholds & quoting

KrabX uses a risk-based approach for Cash by Mail. For buying crypto, we generally don’t require ID for trades under $3,000. For selling crypto, we generally don’t require ID for payouts under $10,000. Larger or higher-risk trades usually require a one-time ID check through SumSub and basic source-of-funds questions.

3

Ship cash or send crypto & settle the trade

For buys, you ship cash using a tracked, reputable carrier. We log receipt, open and count under video, then send your chosen asset (BTC, ETH, USDT, LTC, etc.) directly to your self-custody wallet. For sells, you send crypto to a KrabX wallet; once confirmed and cleared through our risk checks, we count, package, and ship your cash payout with tracking.

What kind of Cash by Mail trades can I do?

Cash by Mail is typically used when customers prefer physical cash over bank transfers, or when they want to convert cash into crypto without wires or Zelle, while still staying within a transparent, compliant flow.

Buying crypto with Cash by Mail

Many clients ship cash to buy assets like Bitcoin, Ethereum, USDT, and Litecoin for self-custody. For trades under $3,000, we generally do not require ID, but we still apply basic risk checks. Larger amounts require KYC.

Selling crypto for Cash by Mail payouts

KrabX can convert your crypto into physical cash and send it out by mail. For payouts under $10,000, we generally do not require ID, while still monitoring for suspicious activity. For larger or repeated payouts, we apply full KYC, KYT, and may request additional information consistent with our AML program.

How Cash by Mail works with different assets

KrabX is a non-custodial OTC desk. We trade from our own inventory and support multiple assets, with limits and availability based on risk, liquidity, and your mailing situation.

BTC, ETH, USDT & LTC

We offer many different coins for Cash by Mail, including Bitcoin (BTC), Ethereum (ETH), Tether (USDT), and Litecoin (LTC). You can buy these by shipping cash to KrabX, or sell them and receive a Cash by Mail payout, subject to our risk and size limits.

Other supported assets

If you'd like to purchase a different crypto that hasn't been listed, feel free to reach out to KrabX. We are willing to accommodate buying/selling of lesser accepted cryptocurrencies like Solana (SOL) and ZCash (ZEC). An additonal fee may apply.

Other payment methods

For very large orders, customers in sensitive mailing situations, or where shipping risk is high, we may recommend domestic bank wires instead. Our priority is balancing your risk tolerance with regulatory and operational integrity.

Want step-by-step examples?
Our “Buy Bitcoin with Cash by Mail” and “Sell Bitcoin for Cash by Mail” guides walk through specific flows. The same structure applies when you trade ETH, USDT, LTC, and other supported assets — only the asset and amount change.

Cash by Mail rules we follow

  • Sender/recipient must match your profile. We only accept packages from you (or your verified business) and only send payouts to recipients and addresses that match your verified details when KYC is required.
  • Tracked, reputable carriers only. We require tracked shipping with a reputable carrier. You must share the tracking number promptly so we can monitor delivery and coordinate intake.
  • No third-party packages or payouts. We do not accept or send Cash by Mail on behalf of friends, relatives, investors, or unknown third parties, even if the trade involves popular assets like BTC, ETH, USDT, or LTC.
  • No structuring. We treat deliberate splitting of trades to stay under ID or reporting thresholds as prohibited structuring and may refuse or block you from trading if we detect it.
Shipping cash always carries risk. Until a package is delivered and logged by KrabX, it is in the custody of the carrier you selected. We maintain internal logs and video evidence of intake once a package reaches us, but you should choose packaging, insurance, and service levels that match your own risk tolerance.

Quick questions

Do I have to complete KYC to use Cash by Mail with KrabX?
For buying crypto with Cash by Mail, we generally do not require ID for trades under $3,000. For selling crypto and receiving Cash by Mail payouts, we generally do not require ID for trades under $10,000. Above those levels, KYC via SumSub is required, and we may ask for additional information based on our AML program. We can still request verification below these thresholds if we determine it is necessary.
How long do Cash by Mail trades take?
Timing depends on the carrier and shipping option you choose. Most trades complete within 1–7 business days from the time you ship cash or send crypto. After your package is logged, opened on video, and counted (for buys), or after your crypto is confirmed and cleared (for sells), we typically complete the other side of the trade the same business day.
What happens if a package is delayed or lost?
Until a package is delivered and logged by KrabX, it is under the control of the carrier. Lost or severely delayed packages are rare, but they are still possible. If this level of risk is not comfortable for you, we can discuss alternatives such as zelle or domestic bank wires instead.
Do you offer guaranteed returns or managed investments?
No. KrabX is an OTC trading desk that facilitates buy and sell transactions only. We do not offer managed accounts, guaranteed returns, or investment schemes. If someone is promising returns and telling you to ship cash or send crypto to us, talk to us first — we would rather help you avoid a scam.

Ready to trade crypto with Cash by Mail?

Open a chat, tell us what you’d like to do (buy or sell) and which asset (BTC, ETH, USDT, LTC, etc.), and we’ll walk you through eligibility, any required verification, and the full Cash by Mail process before you ship cash or send crypto.

You can always ask questions first. There’s no obligation until you confirm a quote and decide to proceed.
KrabX (M Bull Holdings LLC) is registered with FinCEN as a Money Services Business and operates as a non-custodial OTC trading desk. This page is for informational purposes only and does not constitute legal, tax, or investment advice. Availability, limits, and pricing for Cash by Mail trades — including trades in Bitcoin, Ethereum, USDT, and Litecoin — may vary based on customer profile, state of residence, banking partner, and risk assessment.