Sell Your AI Credits
In one sentence: connect an AI API key you already pay for, choose a model and a price, and Qubax sends buyers to you — you get paid in USDC on Base.
Good for credit you won't use: promo credits, gift plans, a subscription you stopped using, or spare capacity on a private deal. Start at qubax.ai/app/sell.
How it works
- 1. Connect a provider. Pick your provider and paste your API key. We support 42 providers, including Venice, OpenAI, Anthropic, Google, DeepSeek, Mistral, Groq, Together and OpenRouter. We test the key straight away.
- 2. Sell a model. Choose one of the models your key can run. Buyers always see it as the normal Qubax model, so they get exactly the model you picked.
- 3. Set your price. Per 1M input and output tokens (see pricing modes below).
- 4. Add a payout wallet. Any Base address. You are paid in USDC.
Who gets your listing
A buyer request goes to you only when your price plus the Qubax fee is cheaper than Qubax's own price for that model. If several sellers qualify, the cheapest wins. Buyers never see who you are — only the model.
- Trusted providers (for example Venice, OpenAI, Anthropic) can serve every buyer.
- Unverified providers and custom servers only serve buyers who chose the lowest_price routing mode.
- You never sell to yourself — your own requests always skip your listings.
Fees and payouts
| Qubax fee | 5%, added on top of your price for the buyer. You keep 100% of your price. |
| Example | You set $1.00 per 1M tokens → the buyer pays $1.05 → you get $1.00. |
| Hold | Each sale is held for 72h while you are new (your first 14 days and until you earn $100), then 24h. |
| Payouts | Automatic: when the hold ends, your earnings are sent to your wallet in USDC on Base at the next payment run (several times a day). Every payment links to Basescan. Very large payments are checked by our team first. |
| Wallet change | Changing your payout wallet pauses payouts for 24h (protects you if your account is taken over). |
| Promo-credit buyers | Sales paid with a buyer's promotional credits are shown but not paid out. |
Pricing modes
- Fixed — you pick the price.
- % of market — a percentage of the market price (the cheapest of other sellers and Qubax's own price).
- Cost + margin — your provider cost plus a margin you choose.
- Beat cheapest — always a set % under the cheapest price.
- Autopilot — moves your price (at most 20% a day): up when you sell well, down after 24h with no sales. A slider sets profit vs. sales.
Every mode can have a minimum and maximum. We re-check prices every 15 minutes and show you a history of every change with the reason.
Tip: Selling below your provider cost? By default we never price you below what your provider charges you. If your credit cost you nothing (gift, promo, unused plan), turn off "Never sell below my cost" on the listing.
Privacy and safety
- No-log: buyers' prompts and answers are never stored — every listing is no-log.
- Your key is encrypted and only used to answer buyers of your listing. Deleting a provider deletes the key immediately.
- Buyers are always answered. If your key errors, is rate-limited, or doesn't start answering within 30 seconds, Qubax answers the buyer itself and you are not paid for that request.
- 3 failures in a row pause your listing. Tap Test on the listing to fix and resume.
- Usage is checked. You are paid on the tokens your provider reports, capped at what the request could really use.
Common questions
- Do I need KYC?
- No. An email account and a Base wallet are enough.
- Why am I not getting sales?
- Your price plus the 5% fee must be below Qubax's own price for that model. Try Beat cheapest or Autopilot, or list a model where Qubax is more expensive.
- Is reselling my key allowed?
- That depends on your provider's terms. Check them before listing — you are responsible for the keys you connect.
- What do buyers see?
- Only the Qubax model name. Never your name, your key or your provider account.
Ready to build?
400+ models through one OpenAI & Anthropic-compatible API, up to 99% below OpenRouter.