Claude Opus 4.8
anthropic
Input price
$2.9400 / 1M tokens
Output price
$14.7000 / 1M tokens
Live · Multi-model gateway
Claude
Claude
One API for Claude, GPT & Gemini
Access the most powerful AI models through a single OpenAI / Anthropic-compatible endpoint. Pay only for what you use, top up with USDT or PayPal.
0+
Models available
0
Compatible protocols
0
Uptime %
0
ms median latency
Trusted by builders worldwide
Everything you need to ship with confidence
OpenAI & Anthropic compatible
No overseas card required
Instant API keys
HTTPS & hashed keys
Pay only for what you use
USDT & PayPal accepted
Try it live
Pick a model and run a simulated request — no signup needed.
Transparent pricing, every model
Hover a card to explore. Pay only for the tokens you use.
Claude Opus 4.8
Claude Sonnet 4.6
anthropic
Input price
$1.7640 / 1M tokens
Output price
$8.8200 / 1M tokens
Claude Haiku 4.5
anthropic
Input price
$0.0822 / 1M tokens
Output price
$0.4116 / 1M tokens
GPT-5.5
openai
Input price
$2.8500 / 1M tokens
Output price
$17.1000 / 1M tokens
GPT Image 2
openai
Input price
$4.5600 / 1M tokens
Output price
$17.1000 / 1M tokens
GPT-5.4
openai
Input price
$1.4250 / 1M tokens
Output price
$8.5500 / 1M tokens
Why choose us
A single gateway that handles compatibility, billing and payments — so you can focus on building.
Drop-in compatible
Point your existing OpenAI or Anthropic SDK at our base URL — no code rewrite.
Pay as you go
No subscriptions. Top up your balance and spend it across any model.
Fast & reliable
Low-latency relay to upstream providers with usage metering.
Global payments
Top up with USDT (TRC20/ERC20/BEP20) or PayPal.
Loved by individual developers
Builders around the world ship faster with one API for Claude, GPT and Gemini.
I changed one base_url and my side project could call Claude, GPT and Gemini with the same key. Topping up with USDT meant I never needed an overseas card.
One balance, one usage log, three model families. It cut my billing headaches to zero and the OpenAI SDK just worked out of the box.
The $5 trial let me ship a prototype before spending real money. Pay-as-you-go pricing is perfect for hobby projects that scale up later.
Start in seconds
Compatible with OpenAI SDK · Anthropic SDK · cURL
cURL
curl https://clauden.ai/v1/chat/completions \
-H "Authorization: Bearer $CLAUDEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-sonnet-4-6",
"messages": [{"role": "user", "content": "Hello!"}]
}'
Ready when you are
Start building in minutes
One key for Claude, GPT and Gemini. Sign up now and get $5 in free credit — no card, no commitment.
No subscription · Cancel anytime · Top up with USDT or PayPal