One API.
Every AI
Model.
Access Claude, GPT, Gemini & 50+ AI models through a single endpoint. Pay less, code more.
WORKS 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.
50 Supported Models
Including 17 maintained models · ultra-low fees from $0.04/1M
Access top AI models from Claude, OpenAI, Google, SambaNova, NVIDIA, Cerebras, and more.
All pricing →Llama 3.1 405B
DeepSeek R1
DeepSeek V3
Llama 3.3 70B
QwQ 32B
Qwen3 32B
Nemotron 70B
Llama 3.3 70B
Mistral 7B
Llama 3.1 8B
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
GPT-5.5 Nano
Grok 4.1 Fast
Gemini 2.5 Flash
GPT-4.1 Mini
GPT-5.4 Mini
GPT-5.5 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-5.5
GPT-5.2
GPT-5.4
GPT-5.5
Grok 4
Get started in minutes
Sign Up
Sign in with Google — start using 21 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 developers choose Izzi
From $0.04/M tokens. 21 free maintained models included. OpenAI + Anthropic compatible endpoints.
Routing
Automatic cost-based routing picks the best model for each request type.
Savings
Optimized pricing compared with direct API access for selected models.
Security
Security practices inspired by SOC2 principles, including key rotation and per-key usage limits.
Caching
Smart response caching reduces repeat processing costs significantly.
Compatible
Works with Claude Code, Cursor, Cline, Windsurf, OpenClaw, and any OpenAI/Anthropic SDK.
Monitoring
Real-time usage dashboards with per-model cost breakdowns and alerts.
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.
17+ models from SambaNova, NVIDIA NIM, OpenRouter, StepFun, Z.ai (DeepSeek R1, Llama 405B, Nemotron 70B, Qwen3 32B, QwQ 32B, and more) with ultra-low maintenance fees (from $0.04/1M tokens). Free upstream providers — you only pay infrastructure cost.
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.
Start building with AI today
15 free credits. 21 free models. No credit card required.