SOL or USDC
A bot holds its budget in SOL or in USDC and trades its coin against it. A USDC bot keeps your money in dollars while it waits, which suits coins like Bitcoin or tokenized stocks: its result is in dollars, whatever SOL's price does.
Pick the currency
Click your balance in the top bar. Under New bots trade in, pick SOL or USDC: the balance in the top bar follows.
That choice sets the currency of:
- new bots,
- a coin's page: prices and charts (in dollars for USDC), the plan, the replay and the trading costs,
- your Portfolio's totals, P&L curve and calendar.
Each bot keeps the currency it was launched with. A coin's page also has a Currency switch above the budget, and the Portfolio one beside the period: both change the same choice.
Need USDC?
Deposit USDC on the Solana network, or convert some SOL in the Exchange window. See Wallet and deposits.
What changes for a USDC bot
| SOL bot | USDC bot | |
|---|---|---|
| Budget | 0.05 SOL at least | 10 USDC at least |
| Beta limit for a real bot | 1 SOL | 200 USDC |
| Tradyn fee | 1% per trade, in SOL | 1% per trade, in USDC |
| Network fees | Paid from its SOL | Paid from a SOL reserve of its own |
| Cashback and referral rewards | In SOL | In USDC |
| Profits you take | In SOL | In USDC |
The fee is paid inside each swap, as for any bot: in USDC, so a 100 USDC buy pays 1 USDC. See Fees and trading costs.
Rewards are in USDC. The cashback and referral share of a USDC fee go to the rewards vault in USDC, inside the swap itself, and are credited to you in USDC. One claim sends them with your SOL rewards. See Cashback and referrals.
Trading costs are measured on the USDC route: from USDC to the coin and back. A coin with no USDC pool goes through SOL in between, which costs a little more. The coin's page shows it before you launch, and real bots stay under the same 8% limit. See Launch a bot.
SOL for network fees
Solana's network fees are paid in SOL. A real USDC bot gets its budget in USDC and 0.015 SOL beside it, in one transfer from your wallet. Its page shows that SOL as SOL for fees.
- The reserve also opens the bot's token accounts. What is left of it comes back when the bot stops.
- When it runs low, Tradyn tops it back up to 0.015 SOL from your wallet before the bot trades again.
- With no SOL left in your wallet, the bot pauses with Needs attention and the reason Out of SOL for network fees. Add some SOL, then Resume it.
To launch a real USDC bot, your wallet needs its budget in USDC and about 0.017 SOL: the reserve, plus the rent of the bot's USDC account, which comes back when it stops.
Its result
A USDC bot's P&L is in USDC, net of every fee: the Tradyn fee, the coin's pool fees and its network fees, counted at their value in USDC when paid. Its cards read USDC, and a demo one DEMO · VIRTUAL USDC.
Take profits sends its profits in USDC to your wallet. The transfer's network fee is paid from its SOL, and nothing is sent under 1 USDC. See Follow and stop a bot.
When it stops, its coins are sold (if you asked), and everything comes back to your wallet in one transfer: its USDC, then its SOL.
USDC is not the dollar itself
USDC is a stablecoin issued by Circle, worth one dollar. Tradyn counts it as one dollar. Circle can freeze a USDC account, and USDC has lost its peg before, briefly.