One API.
Every AI
Model.
Claude, GPT, Gemini — one endpoint. No subscriptions. Pay per token. Access 20+ models through a single, unified API.
Compatible with
Quick Setup
PS> irm "https://izziapi.com/install.ps1?key=YOUR_KEY" | iex
Sets up ANTHROPIC_BASE_URL, API key, and Claude Code config.
28 Supported Models
Including 14 free models with 10M tokens/month
Access top AI models from Anthropic, OpenAI, Google, Groq, Cerebras, and more.
All pricing →Llama 4 Maverick 17B
Llama 4 Scout 17B
Llama 3.3 70B
Llama 3.1 8B
Qwen3 235B
Llama 3.3 70B
DeepSeek R1
DeepSeek V3
Mistral Small 3.1
Qwen3 4B
Gemma 3 27B
Step 3.5 Flash
GLM 4.5 Air
Nemotron 3 Nano 30B
Gemini 2.5 Flash Lite
GPT-4o Mini
Grok 4.1 Fast
Gemini 2.5 Flash
GPT-4.1 Mini
Claude Haiku 4.5
GPT-4.1
GPT-5.1
Claude Sonnet 4.5
Claude Sonnet 4
Claude Opus 4
GPT-5.4
GPT-5.2
Grok 4
How it works
Sign Up
Sign in with Google — start using 14 free AI models instantly
Install
Run the install script — sets up environment and API key automatically
Start Coding
Open terminal, run claude — works immediately with free models
Top Up
Need premium models? Deposit $1+ → get +$5 bonus credits (first deposit only)
Why Izzi
Built for developers who need reliable, fast, and affordable access to every major AI model through a single integration.
+$5 Bonus
First deposit gets +$5 free credits. Deposit just $1 — receive $6 total. One-time for new users.
Fast
Direct connections to AI providers. No middleware delays. Sub-100ms latency.
Secure
Enterprise-grade encryption. Your API keys and data are protected.
Caching
Smart response caching reduces repeat processing costs significantly.
Compatible
Works with Claude Code, Cursor, Cline, Windsurf, and any OpenAI/Anthropic SDK.
No expiry
Your balance never expires. Top up once, use whenever you want.
API Formats
Standard OpenAI and Anthropic compatible endpoints. No code changes — just set the base URL.
OpenAI Compatible
/v1/chat/completions
Full Chat Completions API with streaming, function calling, and tool use. Drop-in replacement for any OpenAI SDK.
OPENAI_BASE_URL=https://api.izziapi.com/v1 OPENAI_API_KEY=izzi-xxxxx
Anthropic Compatible
/v1/messages
Full Messages API with streaming, extended thinking, and prompt caching. Works with Claude Code, Cline, and the Anthropic SDK.
ANTHROPIC_BASE_URL=https://api.izziapi.com ANTHROPIC_API_KEY=izzi-xxxxx
Frequently Asked
Sign up for free, get your API key, and run the install command. It auto-configures Claude Code, Cursor, and other tools in seconds.
We use smart caching and infrastructure optimization to reduce costs, passing the savings directly to users.
Our API is 100% compatible with both Anthropic and OpenAI endpoints. Claude Code, Cursor, Windsurf, Cline, Roo Code, Aider, Continue, and more.
No. Your topped-up balance never expires. Use it whenever you want — there's no time limit.
Bank transfer (VND VietQR), cryptocurrency (BTC, ETH, USDT via Cryptomus), and Lolzteam marketplace balance.
38+ models from Anthropic (Claude Opus, Sonnet, Haiku), OpenAI (GPT-5, GPT-4.1), Google (Gemini 2.5), Groq, Cerebras, xAI (Grok), and many free options.
14 top models (Llama, DeepSeek, Qwen, Gemma) are completely free. Free tier includes 10M tokens/month. Upgrade for unlimited free model usage.
On your very first deposit (minimum $1), you receive +$5 free bonus credits instantly. So deposit $1 and get $6 total. This is a one-time promotional offer for new users.
Ready to start?
Get 15 free credits on sign up. No credit card required.