# Frequently asked questions > Answers about the LLMwithCrypto API: models and compatibility, per-token billing and credit, paying in crypto with no KYC, prompt storage, and the rules. - URL: https://llmwithcrypto.com/faq/ - Last updated: 2026-10-23 - Publisher: LLMwithCrypto (https://llmwithcrypto.com) Short answers, grouped by topic. Each one links to the page with the details. **Quick answer — What should I know before using LLMwithCrypto?** **LLMwithCrypto** is an OpenAI-compatible API for 12 open-weight models, paid per token from prepaid crypto credit with no KYC. As of 23 October 2026 each model costs 5% below the median public host price, credit packs start at $25 and credit never expires. It does not sell GPT, Claude, Gemini or Grok, and it does not keep your prompts or answers. ## Models and compatibility ### Which models can I use? Only open-weight models whose licences allow serving them as an API: DeepSeek, Qwen, gpt-oss, Mistral, Llama, Gemma and others listed on the models page. We run them on GPUs we rent and operate. The [models page](https://llmwithcrypto.com/models/) lists all 12 with their API ids, licences and prices. ### Why can I not call GPT, Claude or Gemini? We do not sell access to GPT, Claude, Gemini or Grok: their makers forbid reselling API access without their approval, and we do not have it. The [resale rules dataset](https://llmwithcrypto.com/data/llm-api-resale-rules-2026/) quotes each provider. ### Does my OpenAI code work? The API speaks the OpenAI chat completions format: point the OpenAI SDK, LangChain or any OpenAI-compatible tool at our base URL with your key, and change the model name. See [what is compatible](https://llmwithcrypto.com/openai-compatible-api/). ### Do streaming and tool calling work? Streaming works on every model; tool calling and JSON output follow what each model itself supports. Guides: [streaming](https://llmwithcrypto.com/docs/streaming/) and [tool calling](https://llmwithcrypto.com/docs/tool-calling/). ### How do I switch from one model to another? Change the `model` field. One key calls every model, and `GET https://llmwithcrypto.com/api/v1/models` lists them. ## Pricing and credit ### How are prices set? Each model costs 5% less than the median price of the public hosts that list it, for input and output tokens, read on 2026-10-23. The [price index](https://llmwithcrypto.com/data/open-model-api-price-index-2026/) shows every host price behind each median. ### How is a call billed? You pay per token from your balance: input and output tokens are counted by the model’s own tokenizer and charged at that model’s price per 1M tokens. A call that ends in an error costs nothing. ### Does credit expire? No. Credit has no expiry date: what you do not spend this month is still there next year. ### Is there a free tier? There is no free tier: the smallest credit pack is the way to try it, and unspent credit never expires. ### Can I get a refund? A credit pack bought in the last 72 hours goes back to your balance if less than 20% of it was spent. If the API does not work for you and support cannot fix it within 24 hours, the unspent credit goes back to your balance. Top-ups stay on the balance and are not paid out unless the law requires it; whatever you added only to reach the minimum top-up comes back on request within 30 days, in USDT or USDC, as long as it is unspent. Details in the [refund policy](https://llmwithcrypto.com/refunds/). ## Payment and no KYC ### Which coins do you accept? BTC, USDT, USDC, ETH, SOL, LTC, from a $25 top-up. The [crypto payments page](https://llmwithcrypto.com/crypto-payments/) explains each network. ### Do you need my ID or an email? No. Sign in with an account number; an email address is optional. ### What if I lose my account number? Your account number is how you sign in, so store it carefully. With an optional email on file you can recover it; with no email, a lost number is gone for good. ### How soon can I call the API after paying? Once your crypto top-up is confirmed and a credit pack is bought, your API key is waiting in the dashboard. ## Data and privacy ### Do you store my prompts or the answers? No. We do not store your prompts or the model’s answers: once a response is sent, its text is gone. Each call leaves one log line with the time, the account, the model and the token counts, deleted after 30 days. ### Are my prompts used to train models? No. We never train or fine-tune any model on your prompts or outputs. ### What does my account keep? Each call leaves one log line: the time, the account, the model and the input and output token counts. Lines are deleted after 30 days. Prompts and answers are not kept. Account number, orders, top-ups and balance stay while the account exists, then only as long as accounting law asks. Authorities receive records only when a law compels us. ## Rules and limits ### What is not allowed? Child sexual abuse material, malware and attacks on systems, weapons capable of mass casualties, spam and fraud, harassment and threats, deceiving people that they talk to a human, and anything a model’s own licence or use policy forbids or that is illegal where you or we operate. The [acceptable use policy](https://llmwithcrypto.com/acceptable-use/) has the details. ### Where is the service unavailable? Not available to people or companies in Iran, North Korea, Cuba, Syria, Russia, Belarus or the occupied regions of Ukraine, because of sanctions. ### Are there rate limits? Yes. Every account has a per-minute request and token limit, shown in the dashboard; ask support and it can be raised. ### Do model licences apply to me? Yes. Each model keeps its own licence and use policy (for example Meta’s Llama Acceptable Use Policy and the “Built with Llama” notice); using a model through us means accepting them. --- LLMwithCrypto: LLMwithCrypto is an OpenAI-compatible LLM API for open-weight models — DeepSeek V4 Pro, DeepSeek V4.1 Flash, DeepSeek R1, Qwen3.5 397B A17B, Qwen3 235B A22B Instruct, gpt-oss-120b, gpt-oss-20b, GLM-4.7, Llama 3.3 70B Instruct, Gemma 4 31B, Mistral Large 3, Mistral Small 4 — paid per token from a prepaid crypto balance, at 5% below the median price of the public hosts. No KYC: no ID, no selfie, no documents. Prompts and outputs are not stored.