If you have ever seen product names like “Claude API 100M tokens” or “Codex API 300M” and wondered what on earth that means — this guide is for you. API credits are the wholesale side of the AI economy, and for many people they are dramatically cheaper than chat subscriptions. Here is how they work.
What is an API, in plain words?
An API (Application Programming Interface) is a way for programs to talk to AI models directly — no chat window, no app. Instead of clicking “send” in a chat, your code (or a tool you use) sends a request and gets an answer back. You are billed by usage: how many tokens you consume. A token is roughly a small piece of a word — about 750 words of English text is around 1,000 tokens.
What is a “credit” or “token pack”?
Instead of paying OpenAI, Anthropic or Google directly with a credit card (which, for many countries, is the hard part), you can buy prepaid credit packs from resellers. You receive a code or a redemption link, you redeem it into your own developer account (or use it with the tool the pack is designed for), and the balance is yours to spend. Popular packs include:
- Codex / OpenAI API packs — for coding agents and GPT-family models
- Claude API packs — for Anthropic models, loved for coding and long documents
- Grok, DeepSeek and MiniMax packs — strong models at aggressive prices
When credits beat a subscription
| Your usage | Best option |
|---|---|
| You chat a few times a day | Chat subscription (Plus / Pro) |
| You build apps, scripts or automations | API credits |
| You process large volumes of text/code | API credits — usually much cheaper per task |
| You use AI inside tools like editors or automations platforms | Often credits — many tools accept API keys |
The rule of thumb: subscriptions price access; APIs price work done. Heavy, repetitive, automated work is almost always cheaper through the API.
How buying works (and how we deliver)
- Choose the pack sized for your expected usage — our API & Developer Tools category lists current packs with prices and warranty length.
- Pay with crypto (USDT, BTC or ETH) — the practical payment method for buyers without international cards, processed automatically at checkout.
- Receive your code by email, usually within minutes, with redemption instructions.
- Redeem and build. If anything goes wrong within the warranty window, you get a replacement.
Safety rules for buying API credits
- Buy packs with a stated warranty window — a seller confident in the source will state it clearly.
- Redeem promptly. Credits are like milk, not wine: redeem them when you get them, and note the validity period stated on the product page.
- Never share your own API key with anyone — the key is the wallet.
- Prefer short-window packs for testing (1-day and 7-day packs exist) before committing to larger balances.
Start small, scale later
If you are new to APIs, start with a small pack and a simple script — summarize a document, classify a list, translate a file. Once you see your real token consumption, matching pack size to your workload becomes trivial. And if you want a recommendation for your specific project, ask in our Telegram support group — developers hang out there.
