TRC20 Token Toolkit

TRC20 Token Toolkit

Universal TRC20 token operations for AI agents on TRON. Check balances, transfer tokens, manage approvals, and fetch metadata for any TRC20 token. Supports symbol-based lookups for common tokens (USDT, USDD, SUN, etc.) and direct contract addresses for any token.

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Quick Start

Wallet required: Run agent-wallet list first.
If no wallets exist, invoke bankofai-guide (Section C — Wallet Guard) before proceeding.

1. Install dependencies:

   cd trc20-toolkit-skill && npm install
   

2. Set environment variables:

   export TRON_PRIVATE_KEY="<your-private-key>"
   export TRON_NETWORK="mainnet"
   export TRONGRID_API_KEY="<optional>"
   

Caution

Never display or log the private key.

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Available Scripts

1. info.js — Token Metadata

node scripts/info.js <tokenAddressOrSymbol>
node scripts/info.js USDT
node scripts/info.js TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t

Output: name, symbol, decimals, total_supply

2. balance.js — Token Balances

# Single token balance
node scripts/balance.js USDT
node scripts/balance.js USDT TWalletAddress123

# Batch balance check
node scripts/balance.js --batch USDT,USDD,SUN
node scripts/balance.js --batch USDT,USDD TWalletAddress123

Output: trx_balance, tokens[] (each with symbol, balance, decimals)

Behavior note: In --batch mode, invalid token inputs are returned as per-item errors instead of aborting the entire batch.

3. transfer.js — Transfer Tokens

Parameter	Required	Description
token	Yes	Token address or symbol
toAddress	Yes	Recipient TRON address
amount	Yes	Human-readable amount
--dry-run	No	Validate only, no transaction

node scripts/transfer.js USDT TRecipientAddress 10.5 --dry-run
node scripts/transfer.js USDT TRecipientAddress 10.5

Output: status, tx_id, amount, symbol

Validation rules: Recipient addresses must be valid TRON addresses, self-transfers are rejected, and amount must be greater than 0 even in --dry-run.

4. approve.js — Manage Allowances

# Set allowance (use the exact amount needed, never unlimited)
node scripts/approve.js USDT TSpenderAddress 1000 --dry-run
node scripts/approve.js USDT TSpenderAddress 1000

# Check current allowance
node scripts/approve.js USDT TSpenderAddress --check
node scripts/approve.js USDT TSpenderAddress --check TWalletAddress

Output: allowance, is_max, status, tx_id

Validation rules: Spender and optional owner addresses must be valid TRON addresses, amount must be greater than 0, and unlimited approvals remain disabled.

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Usage Patterns

Pattern 1: Check Before Transfer (Recommended)

node scripts/balance.js USDT
node scripts/transfer.js USDT TRecipient 100 --dry-run
# Confirm with user
node scripts/transfer.js USDT TRecipient 100

Pattern 2: Portfolio Overview

node scripts/balance.js --batch USDT,USDD,SUN,JST,BTT

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Security Rules

Caution

1. Never display private keys in output or logs.
2. Never transfer without user confirmation. Always use --dry-run first.
3. Prevent self-transfers. The script rejects transfers to the sender's own address.
4. Validate addresses. Ensure all addresses start with T and are valid TRON base58 addresses.
5. Check balances before transfer. The script validates sufficient balance automatically.
6. Never use unlimited approvals. Always approve only the exact amount needed for the intended swap or transfer. Infinite (MAX_UINT256) approvals are rejected by the script. This prevents a compromised or malicious spender contract from draining the entire token balance.
7. Treat multi-permission wallets carefully. These scripts assume a directly usable signing key; wallets that require explicit permissionId selection may need a different transaction flow.

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Supported Tokens

Common tokens resolved by symbol: USDT, USDD, USDC, WTRX, SUN, JST, BTT, WIN. Any TRC20 token can be used via its contract address.

See resources/well_known_tokens.json for the full list.

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Common Issues

Problem	Solution
Unknown token symbol	Use the full contract address instead
Insufficient balance	Check balance first with balance.js
TRON_PRIVATE_KEY required	Set the environment variable
Cannot find module 'tronweb'	Run npm install

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Version 1.0.0 — Created by M2M Agent Registry for Bank of AI