tron-swap

TRON DEX Swap

3 commands for swap quote, route optimization, and transaction status tracking (read-only queries).

Pre-flight Checks

1. Confirm Node.js >= 18:

   node -e "console.log('ok')"  # Node.js >= 18 required
   

2. Check energy before swapping: Swaps consume significant Energy (typically 50,000–200,000). Run:

   node "$TRON_API" resource-info --address <YOUR_ADDRESS>
   

   If energy is insufficient, consider freezing TRX first (tron-staking) or accept TRX burn cost.

Resolve the CLI path

Every command below runs node "$TRON_API". Set $TRON_API once per session so it works no matter how the skill was installed (Claude Code plugin, install.sh → ~/.tronlink-skills, or inside the cloned repo):

TRON_API="${CLAUDE_PLUGIN_ROOT:-$HOME/.tronlink-skills}/scripts/tron_api.mjs"
[ -f "$TRON_API" ] || TRON_API="scripts/tron_api.mjs"   # fallback when run inside the repo

Read-only: these commands quote and inspect swaps; they do not sign or broadcast transactions.

Commands

1. Swap Quote

node "$TRON_API" swap-quote \
  --from-token <FROM_CONTRACT_OR_TRX> \
  --to-token <TO_CONTRACT_OR_TRX> \
  --amount <HUMAN_READABLE_AMOUNT> \
  [--slippage 0.5]

Returns: expected output amount, slippage_pct, minimum_received (= amount_out × (1 − slippage), your worst-case fill), price impact, fee, route path, and estimated energy cost. Default slippage is 0.5%; --slippage is validated to the 0–50% range (a larger value is rejected rather than producing a negative minimum_received). --amount must be a positive number. The same slippage parameter is also exposed on the MCP tron_swap_quote tool.

⚠️ Amount is human-readable — pass 100 for 100 TRX, NOT 100000000.

Example:

# Quote: 100 TRX → USDT
node "$TRON_API" swap-quote \
  --from-token TRX \
  --to-token TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t \
  --amount 100

2. Best Route

node "$TRON_API" swap-route \
  --from-token <FROM_CONTRACT> \
  --to-token <TO_CONTRACT> \
  --amount <AMOUNT>

Returns the same best-route data as swap-quote — this command is currently an alias of it. The chosen route, path, pool_versions, and price impact are already part of the swap-quote response; multi-hop paths (e.g. TRX → WTRX → USDT) appear in those fields when the router returns them.

3. Transaction Status

node "$TRON_API" tx-status --txid <TRANSACTION_HASH>

Returns: confirmation status, block number, energy used, bandwidth used, result.

DEX Router Addresses (Mainnet)

DEX	Router Contract
SunSwap V2 Router	TKzxdSv2FZKQrEqkKVgp5DcwEXBEKMg2Ax
SunSwap V3 Router	TQAvWQpT9H916GckwWDJNhYZvQMkuRL7PN
Sun.io Swap	TKcEU8ekq2ZoFzLSGFYCUY6aocJBX9X31b

Swap Cost Estimation

TRON swap costs differ from EVM chains:

Operation	Bandwidth	Energy	TRX Burn (if no resources)
TRX → TRC-20	~345	~65,000	~6.5 TRX
TRC-20 → TRX	~345	~50,000	~5 TRX
TRC-20 → TRC-20	~345	~130,000	~13 TRX
Approve (first time)	~345	~30,000	~3 TRX

⚠️ TRX-burn = energy × getEnergyFee ÷ 1e6. The figures above use the live fee ≈ 100 SUN (mid-2026); it was 420 SUN in 2023–2024 (~4.2× higher). Always check the current price:

node "$TRON_API" energy-price

Slippage Guide

Token Type	Recommended Slippage
Stablecoins (USDT↔USDC)	0.1%
Major tokens (TRX, JST, SUN)	0.5%
Mid-cap tokens	1-2%
Low-cap / Meme tokens	3-5%
New launches	5-10% (⚠️ high risk)

Safety Checks Before Swap

1. Security heuristic: Run node "$TRON_API" token-security --contract <TOKEN> before trading unfamiliar tokens (first-pass risk snapshot, not a full audit)
2. Liquidity check: Run node "$TRON_API" pool-info --contract <TOKEN> — avoid tokens with < $10k liquidity
3. Energy check: Run node "$TRON_API" resource-info --address <YOUR_ADDRESS> — swap without energy burns TRX
4. Price impact: If price impact > 3%, consider splitting into smaller trades