Access GPT-5.4, Claude Opus 4.6, Gemini 3.1 Pro, DeepSeek, and more — with a single unified API key. No multiple subscriptions, no complexity.
Powered by the world's best AI models
One unified platform to access, manage, and scale across all leading AI providers.
One key to rule them all. Switch between GPT-5.4, Claude Opus 4.6, Gemini 3.1 Pro, and more with a single parameter change — no re-authentication needed.
No minimum subscriptions. Pay per token, per request. Our transparent pricing means you never pay for idle capacity.
99.9% SLA uptime, global edge nodes, intelligent load balancing, and automatic failover keep your app running 24/7.
API keys encrypted at rest and in transit. IP allowlisting, key rotation, rate limiting, and complete audit logs — security built in, not bolted on.
Already using the OpenAI Python or Node SDK? Just change your base_url. Zero code changes needed to get started.
Track token usage, response latency, success rates, and cost breakdown per model — all in a beautiful real-time dashboard.
The simplest path from zero to full AI access.
Create a free account at apikey.fun and get $5 in free credits instantly. No credit card required.
From your dashboard, generate your unified API key in one click. This key works for every model we support.
Point your existing SDK to api.apikey.fun/v1. That's the only change you need to make.
Choose GPT-5.4, Claude Sonnet 4.6, Gemini 3.1 Pro or any other model in your request. Switch freely anytime.
We're 100% compatible with the OpenAI API format. If you've written code for OpenAI, you can use APIKEY FUN in seconds.
from openai import OpenAI # Just change base_url — everything else stays the same client = OpenAI( api_key="your_apikeyfun_key", base_url="https://api.apikey.fun/v1" ) response = client.chat.completions.create( model="gpt-5.4", # or "claude-sonnet-4.6", "gemini-3.1-pro"... messages=[ {"role": "user", "content": "Hello, World!"} ] ) print(response.choices[0].message.content)
import OpenAI from "openai"; // Just change baseURL — everything else stays the same const client = new OpenAI({ apiKey: "your_apikeyfun_key", baseURL: "https://api.apikey.fun/v1", }); const response = await client.chat.completions.create({ model: "claude-sonnet-4.6", messages: [{ role: "user", content: "Hello, World!" }], }); console.log(response.choices[0].message.content);
curl https://api.apikey.fun/v1/chat/completions \ -H "Authorization: Bearer your_apikeyfun_key" \ -H "Content-Type: application/json" \ -d '{ "model": "gemini-3.1-pro", "messages": [ { "role": "user", "content": "Hello, World!" } ] }'
A powerful, intuitive dashboard to monitor usage, manage keys, and analyze costs — all in real time.
"APIKEY FUN completely changed how I build AI features. I used to manage 4 different subscriptions and API clients. Now it's just one key, one SDK call. Incredible."
"The OpenAI-compatible API was the killer feature for us. We migrated our entire app from direct OpenAI calls to APIKEY FUN in under an hour, and our costs dropped by 35%."
"The dashboard analytics alone are worth it. I finally know exactly what each model costs for each feature in our product. The team now makes data-driven decisions on model selection."