How to Use TronGrid for USDT TRC-20 Transactions with CAS

This guide explains how to configure TronGrid.io for sending USDT (TRC-20) transactions on the TRON network using CAS (Crypto Application System). Follow these steps to set up your wallet, link it to TronGrid, and enable seamless token transfers.

Key Concepts

Tether (USD₮)

• USD₮ is a stablecoin pegged to the US dollar, available on multiple blockchains including TRON (TRC-20) and Ethereum (ERC-20).
• TRC-20 is TRON’s token standard, incompatible with ERC-20. Ensure your recipient supports TRON-based USDT.

TRON Blockchain

• A Proof-of-Stake network similar to Ethereum, with TRX as its native coin.
• TRX is used to pay for transaction fees (called energy and bandwidth).
• Not all wallets/exchanges support TRC-20 tokens—verify compatibility before sending.

TronGrid.io

• A platform facilitating TRON transactions via API.

• Requires:

  • A TronGrid API key.
  • A TRON private key (generated by a wallet like TronLink).

Step 1: Set Up a TronLink Wallet

To generate a TRON private key, we recommend TronLink, a Chrome extension wallet.

👉 Download TronLink

Installation Steps:

1. Install the TronLink extension and restart Chrome.
2. Open TronLink and click Create Wallet.
3. Set a secure password and back up your mnemonic phrase.
4. Navigate to Export Account > Private Key and save this key securely.

Step 2: Configure TronGrid.io

Link your wallet to TronGrid to enable API access.

Steps:

1. Create an account at TronGrid.io (free tier suffices).
2. Log in and navigate to API Keys (dashboard/keys).
3. Generate a new API key (e.g., "CAS USDT Transactions").
4. Save the API key (e.g., 64bee9b8-0873-6940-b1ce-762092ef5efe).

Step 3: Configure CAS Crypto Settings

Combine your API key and private key into a single parameter string for CAS.

Parameters Format:

apikey:privatekey:feeLimit

Example:

64bee9b8-0873-6940-b1ce-762092ef5efe:63abcdef1234567890abcdef987654321fedcba

• feeLimit (optional): Defaults to 30 TRX. Adjust if needed (details).

Step 4: Test the Setup

1. In CAS, select "Tron TRC20 Trident Wallet - USDT".
2. Paste the parameter string.
3. Run Test Hot Wallet Buy to confirm functionality.

👉 TRON Explorer to verify transactions.

FAQs

Q: Can I use a wallet other than TronLink?

A: Yes, but TronGrid recommends TronLink. Any TRON-compatible wallet will work if it provides a private key.

Q: Why is my transaction failing?

A: Ensure:

• Sufficient TRX for fees (~30 TRX per transaction).
• Recipient supports TRC-20 USDT.

Q: How long do transactions take?

A: Typically seconds to post, with confirmation in 1-2 minutes.

Additional Resources

• TRON Full Node API
• TronGrid Documentation
• TRON Developer Discord

By following this guide, you’ll enable secure, low-cost USDT transfers via TRON’s TRC-20 network. For troubleshooting, check your API key permissions and TRX balance.

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