How To

Master Tap‑to‑Pay with Crypto: Connect MetaMask to Oobit Securely

Erica Lin
5
 MIN READ
August 14, 2025
Table of contents

What Is Tap‑to‑Pay with Crypto?

Tap-to-pay with crypto transforms how we spend digital assets. Instead of converting crypto manually or using a prepaid card, users tap their phone just like Apple Pay or Google Pay. The Oobit app handles real-time crypto-to-fiat conversion at any NFC-enabled terminal.

How it works:

  • Connect your Metamask wallet through Walletconnect on the Home screen
  • Authorize the connection and transfer funds
  • Tap your phone to pay
  • The system converts crypto to fiat on the spot
  • Payment completes instantly

Why MetaMask + Wallet Connect Is Ideal for Crypto-Savvy Users

MetaMask is a leading self-custody wallet. It keeps your keys private and your assets under your control.

  • No centralized exchanges
  • Direct connection with your wallet
  • Approvals happen securely via your device
  • Reduces error from manual transfers

Step‑by‑Step: Connecting MetaMask to Oobit Using Wallet Connect

1. Open Oobit App - Go to the "Add funds" section.

2. Select’ Connect Wallet’ - Choose MetaMask from the list.

3. Authorize the Connection - Approve the secure session in MetaMask.

4. Verify Your Address - Make sure the wallet address is correct.

5. Connection Complete - Your MetaMask balance is now available to spend.

Activating Tap‑to‑Pay: From Wallet to Checkout

Once MetaMask is connected:

  • Add the Oobit card to your device wallet (Apple Pay, Google Wallet)
  • Tap your phone at any NFC terminal
  • Oobit converts your crypto to fiat instantly
  • Payment processes like any standard debit card

Security Considerations & Best Practices

Your private keys never leave MetaMask. Oobit uses Wallet Connect’s encrypted protocol and enterprise-grade security powered by Fireblocks.

Best practices:

  • Only approve known Wallet Connect sessions
  • Use MetaMask’s mobile app with biometric login
  • Update regularly
  • Consider using a hardware wallet for large balances

Troubleshooting & Tips

  1. Wallet won’t connect?

Make sure MetaMask is unlocked and the internet is enabled.

  1. NFC not working?

Enable contactless payments and check app permissions.

  1. Slow confirmations?

Use high-speed, low-fee networks (Polygon, BNB, TRC‑20).

Oobit vs. Custodial Crypto Cards

Oobit:

  • No custody risk
  • No hidden fees
  • Real-time spend from Metamask
  • Instant tap-to-pay from any terminal

Typical custodial cards:

  • Require top-ups
  • Higher fees or monthly charges
  • Slower processing
  • Limited control over assets

If you value decentralization and speed, the choice is clear.

Conclusion

How To

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