Stop juggling multiple API keys and unpredictable bills. Access GPT-5.2, Claude Opus 4.5, Gemini 3 Pro, Grok 4, Mistral 3 and more through a single integration. Build AI-powered apps with predictable costs.
Access all major AI models
Build intelligent conversational interfaces for customer support, internal tools, or user-facing applications. Switch models based on complexity.
Integrate AI capabilities into iOS, Android, Windows, or macOS applications. One SDK, consistent experience across all platforms.
Add AI features to your SaaS product without managing multiple providers. Content generation, analysis, automation - all through one API.
step 01
Create your account in seconds. Choose your plan and generate your unique API key from the dashboard. No credit card required to start.
step 02
Select from GPT-5.2, Claude Opus 4.5, Gemini 3 Pro, Grok 4, Mistral 3 and more. Switch models on the fly based on your needs - performance, cost, or specialty.
step 03
Integrate with a few lines of code. Our OpenAI-compatible API makes migration easy. Monitor usage in real-time from your dashboard.
import keyplex
# Initialize with your API key
client = keyplex.Client("your-api-key")
# Use any model with the same syntax
response = client.chat.completions.create(
model="gpt-5.2", # or "claude-opus-4.5", "gemini-3-pro"...
messages=[
{"role": "user",
"content": "Hello, Keyplex!"}
]
)
print(response.choices[0].message.content)Surprise Bills
No more token-based anxiety. Fixed monthly pricing lets you prototype, test, and iterate without watching your wallet.
Migration Time
Already using OpenAI? Switch to Keyplex by changing just your API endpoint. Your existing code works out of the box.
To Switch Models
Need Claude for reasoning? GPT for creativity? Gemini for multimodal? Change a single parameter - same code, different model.
per month
Perfect for testing and small projects. Full access to all AI models. Cancel anytime.
per month (Save 35%)
Ideal for growing projects. All features included. Billed quarterly at 19,47€.
per month (Save 60%)
Maximum savings for committed developers. Billed annually at 47,88€.
GPT-5.2, GPT-5.2-mini, GPT-5.2-nano. Best for creative writing, coding assistance, and general-purpose tasks.
Claude Opus 4.5, Claude Sonnet 4.5. Excellent for complex reasoning, analysis, and long-context conversations.
Gemini 3 Pro. Advanced multimodal capabilities for text, images, and code understanding.
Grok 4. Real-time knowledge and witty, direct responses for unique applications.
Mistral 3. Open-weight models with excellent price-performance ratio for enterprise use.
Llama 4. Open-source powerhouse for research and production applications.
Get your API key in seconds. No credit card required. Start building with all major AI models through one unified API.
Keyplex offers simple subscription-based pricing starting at 9,99€/month. Save up to 60% with longer commitments: 6,49€/month for 3 months or 3,99€/month for 12 months. All plans include full access to every AI model.
Yes! Our API is fully OpenAI-compatible. If you're already using OpenAI's SDK, you only need to change the base URL and API key. Your existing code will work without modification. We also provide native SDKs for Python, JavaScript, and other languages.
Absolutely. Just change the model parameter in your API call. Use GPT-5.2 for creative tasks, Claude Opus 4.5 for analysis, Gemini 3 Pro for multimodal - all with the same API key. No separate accounts or integrations needed.
Each subscription includes a generous monthly allowance based on fair usage. We monitor usage to ensure quality of service for all users. If you need higher limits for your project, contact us for custom enterprise plans.
We take security seriously. All API calls are encrypted via TLS. We don't store your prompts or responses beyond what's needed for billing. Your data is never used to train models. We're SOC 2 compliant and offer data processing agreements for enterprise customers.