USDT · 18 networks

Buy Claude Code credits with USDT

As of 2026-10-07, QCode accepts USDT on 18 networks, from low-fee Tron and Solana through to the L2s, with a 0% platform fee; once the on-chain transaction is verified, the full USD amount is credited to your balance.

Updated 2026-10-08

One key across Claude, GPT and Chinese models, billed per token.

#USDT#TRC20#Claude Code#Zero fee

Four numbers worth knowing

18

networks to choose from

Tron, Solana, Arbitrum, Aptos, TON and more — pick whichever chain your USDT already sits on.

0%

platform fee

No third-party crypto gateway, so the full USD value of what you send reaches your balance.

8

networks carry USDT0

On Ink, Plasma, Conflux, HyperEVM, Unichain, X Layer, Flare and Tempo the token is USDT0, not plain USDT.

1

day or so to credit (manual review)

We verify the on-chain transaction ourselves and credit it by hand; the recharge page states about one day.

What this channel is for

Plenty of developers cannot get a card that works with overseas AI services, or would rather their API spend did not show up on a card statement. USDT is the most widely distributed stablecoin, supported by essentially every exchange and wallet. Once it is in your QCode balance it works across Claude Code, OpenAI Codex, the Chinese models and everything else on offer — the balance does not remember which coin funded it.

Which USDT networks are live

As of 2026-10-07 there are eighteen: Tron, Solana, Arbitrum One, Polygon, Optimism, Avalanche C-Chain, Ethereum, TON, Sei and Aptos, plus Ink, Plasma, Conflux, HyperEVM, Unichain, X Layer, Flare and Tempo, which carry USDT0. Deposit addresses are issued per asset and network, shown only on the recharge page after you sign in, and are not interchangeable.

Three steps

Step 1

Check the USD price of the plan you want on the pricing page and convert it to USDT at the current rate. Adding 2-3% covers on-chain fees and rate movement.

Step 2

Sign in, open the recharge page, choose USDT, then choose the network your USDT actually sits on. The page shows the deposit address for that exact asset and network; send a small test amount first and move the rest once it lands.

Step 3

Manual crypto top-ups have no submit button, so report the transfer yourself: coin and chain, amount in USD, transaction hash, and your QCode ID or registered email, via live chat or hi@qcode.cc. We verify and credit the balance.

Two things to check before picking a network

The mainstream networks

Tron (TRC20) is the most widely supported and cheap, which makes it most people's default. Solana is faster and cheaper still. Arbitrum One, Polygon and Optimism are cheap L2s with good wallet support. Those five cover almost every case.

Where people go wrong

First, eight of the networks carry USDT0 rather than plain USDT; the two are not interchangeable and a wrong send cannot be recovered. Second, Ethereum mainnet (ERC20) has the highest fees, so unless your USDT is already there it is rarely worth it. Third, every network has a different deposit address — always use the one the recharge page shows you, never a reused one from a past transfer.

USDT versus paying by card

USDT (this page)

Zero platform fee and the full amount reaches your balance. No overseas card needed. The trade-off is manual verification, usually within a day rather than instant.

Credit card

Instant and fully automated, but it carries a processing fee and needs a card that overseas AI services will actually accept.

Getting the amount right

USDT is not permanently pegged at exactly one dollar, exchanges quote slightly different rates, and the on-chain fee comes out of the transfer, so what arrives is often a little under the number you typed. The safe habit is to send 2-3% above the USD figure from the pricing page. QCode verifies the on-chain transaction itself instead of using a third-party crypto gateway, so there is no processing fee and the full verified USD amount is credited.

What the balance covers

The balance is denominated in USD and works across every model QCode carries: the full Claude Code line, OpenAI Codex, and the Chinese families such as GLM, Kimi, DeepSeek and Qwen. There is no rule tying crypto-funded balance to a subset of models. See the pricing page for what is currently on offer and at what rate.

Frequently asked questions

Which chain is cheapest for USDT?

Tron (TRC20) and Solana usually have the lowest transfer fees and are the easiest to withdraw to from most exchanges. If your USDT already sits on an L2 such as Arbitrum, Polygon or Optimism, using that chain saves you a bridging step.

What is the difference between USDT0 and USDT?

USDT0 is the cross-chain build of Tether, circulating on Ink, Plasma, Conflux, HyperEVM, Unichain, X Layer, Flare and Tempo. It is a different token from plain USDT and the two cannot substitute for each other. The recharge page labels these networks explicitly.

Is there a minimum?

We suggest at least the equivalent of ten US dollars per transfer, otherwise the on-chain fee eats too large a share. Separately, each asset has an exchange-side minimum deposit, 2.5 USDT for USDT; transfers below it may not be credited. That one is a hard threshold, and both apply.

How soon can I start using Claude Code?

As soon as the balance lands. Crypto relies on manual verification, which the recharge page puts at about a day; if you need it immediately, pay by card instead, which is credited as soon as the payment completes.

What if I forget to tell you about the transfer?

Manual crypto top-ups have no submit button; the transfer is matched to your account only once you report it. If you forgot, contact live chat or hi@qcode.cc with the transaction hash (txid), coin, network and amount. Without a txid it cannot be traced, and the credit simply arrives later.

Where this page gets its facts

Payment details on this page come from the Payment Methods overview (updated 2026-10-01) and the Crypto Payment Guide (updated 2026-08-20) on docs.qcode.cc, checked on 2026-10-07; the recharge page you see after signing in is authoritative for networks and tokens. On-chain fees are set by each network in real time and have nothing to do with QCode.

Start topping up with USDT

Sign up for QCode, pick the chain your USDT is already on, and start calling Claude Code shortly after.

Try first, then decide

Not sure which tier? Start with Starter ($8.57/mo) and upgrade when you're happy — the unused value of the old plan goes back to your balance.