Fast, capable AI models with simple token billing. Chat with Claud models on the web, or integrate them with an OpenAI-compatible API in minutes. Pay only for what you use with transparent token pricing.
No free tier and no trial: buy a token package or a plan and start. No card, no KYC: just an email address and a crypto payment.
curl https://api.claudkey.com/v1/chat/completions \
-H "Authorization: Bearer $CLAUD_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-opus-5",
"messages": [{"role": "user", "content": "Write a haiku about rivers."}],
"stream": true
}'From lightning-fast classification to deep, multi-step reasoning. All models share one API and one token balance.
Our balanced everyday model. Strong reasoning with quick responses, ideal for chat, coding and analysis.
Our most capable model for complex, multi-step work where quality matters most.
Every request shows exactly how many tokens it used and what it cost. Buy tokens as you go or subscribe for a monthly allowance.
Standard sk- keys and both OpenAI- and Anthropic-format endpoints. Drop Claud into Cursor, Claude Code, the official SDKs, LangChain or the Vercel AI SDK by changing a base URL.
Sign up with an email address, top up with Bitcoin, Ethereum, USDT or USDC, and start building in minutes. No identity checks, no card on file, no invoices after the fact.
Hashed API keys, two-factor authentication, audit trails and strict data handling. Your prompts are never used for training.
A calm, focused chat interface for everyday work, with the same models and the same balance as the API.
Create an account with just an email address, generate an API key and make your first request in under two minutes. No KYC, no card required.
Extended thinking for hard problems: mathematics, research synthesis and intricate debugging.
Try prompts, tune parameters and copy ready-to-run code in curl, JavaScript or Python.