Pay for the AI API with crypto.
Top up your Claude, GPT and Qwen API balance with crypto — no card, no subscription, no vendor account. The same models at up to 10× lower cost, starting from a $2 top-up.
OpusGate is a pay-as-you-go gateway for the Claude, GPT and Qwen APIs. You top up a balance and spend it per request — and you can fund that balance with cryptocurrency. Payments run through CryptoCloud, so you can pay in USDT, BTC, ETH and other major coins from any wallet.
It’s a drop-in replacement for the Anthropic and OpenAI SDKs: change the base URL to api.opusgate.dev, keep your code and prompts, and pay a fraction of the list price.
Prices — pay in crypto, save up to 10×
How it works
1. Create an account and an API key (email or Google — no KYC).
2. Open Top up, choose any amount from $2, and select crypto checkout.
3. Pay from your wallet. Once the transaction confirms, your balance is credited automatically.
4. Point your IDE or SDK at api.opusgate.dev and start calling Claude, GPT or Qwen.
FAQ
Which cryptocurrencies can I pay with?
Top-ups go through CryptoCloud, which accepts USDT, BTC, ETH and many other major coins and networks. Pick the coin at checkout and pay from any wallet.
Do I need a card or a subscription?
No. OpusGate is pay-as-you-go — top up your balance with crypto from $2 and spend it per request. No card on file, no recurring charge.
Which models can I use?
Claude (Opus 4.8/4.7/4.6, Sonnet 4.6, Haiku 4.5), GPT 5.4/5.5 and Qwen 3.7 — the original vendor models, through one drop-in endpoint.
How fast does the balance credit after paying?
As soon as the crypto payment is confirmed on-chain, the invoice clears and your balance is credited automatically — usually within minutes.
Is it really cheaper than going direct?
Yes — the same models run at up to 10× lower cost than the vendor list price, whether you pay with crypto or card.
Same models, up to 10× cheaper. Top up from $2 in USDT, BTC and more.