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 API key and auto-configures Claude Code, Cursor, and more.
38 Supported Models
Including 9 maintained models · ultra-low fees from $0.075/1M
Access top AI models from Claude, OpenAI, Google, Groq, Cerebras, and more.
All pricing →Qwen3 235B
Llama 3.3 70B
Nemotron 3 Super 120B
Devstral 2 123B
Gemma 3 27B
Llama 3.3 70B
Auto Router
Step 3.5 Flash
GLM 4.5 Air
GPT-5 Mini
GPT-5.1 Mini
Gemini 2.5 Flash Lite
GPT-4o Mini
GPT-5.4 Nano
Grok 4.1 Fast
Gemini 2.5 Flash
GPT-4.1 Mini
GPT-5.4 Mini
Claude Haiku 4.5
GPT-5.1
GPT-5.1 Codex
GPT-5.1
GPT-5.1 Codex
o3-mini
GPT-4.1
GPT-4o
Auto Select
Claude Sonnet 4.6
Claude Opus 4.6
Claude Sonnet 4.5
Claude Sonnet 4
Claude Opus 4
Gemini 2.5 Pro
GPT-5.2
GPT-5.4
GPT-5.2
GPT-5.4
Grok 4
How it works
Sign Up
Sign in with Google — start using 9 free maintained models instantly
Install
Run npx izziapi or clone izzi-openclaw from GitHub — auto-configure everything
Start Coding
Open terminal, run claude — works immediately with optimized pricing
Top Up
Need Claude/GPT-5? 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.
Auto Selection
AI auto-selects the best model for your task. Simple → fast models, Complex → premium models. Optimized for cost and quality.
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, OpenClaw, and any OpenAI/Anthropic SDK.
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. Or clone izzi-openclaw from GitHub for one-click OpenClaw setup.
We negotiate bulk rates with AI providers and use optimized infrastructure to deliver premium models at lower cost. Maintained models use free-tier upstream providers with minimal markup.
Set model to 'auto' and our system auto-selects the most cost-effective model for your task. Simple prompts → fast/cheap models, complex code → Claude/GPT-5.
Our API is 100% compatible with both Anthropic and OpenAI endpoints. Claude Code, Cursor, Windsurf, Cline, Roo Code, Aider, Continue, OpenClaw, Gemini CLI, Codex CLI, 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.
9 models (Qwen3 235B, Llama 3.3 70B, Nemotron 3 Super, Devstral 2, Gemma 3, Step 3.5 Flash, GLM 4.5 Air) with ultra-low maintenance fees (from $0.075/1M tokens). Free upstream providers.
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.