OpenAI API Compatible

Your AI. Your Data.

UK-based, enterprise-grade AI APIs built for sovereignty and security. Your data stays in the UK, compliant with British standards and GDPR. Empowering UK developers to build intelligent applications with confidence.

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UK Sovereign AI

Enterprise AI with UK Data Sovereignty

Enterprise-grade AI with UK data residency. Unlock AI possibilities for regulated industries, government, and enterprise.

Build for Regulated Industries: Develop AI applications for healthcare, finance, and legal sectors. UK data residency ensures compliance with strict regulatory requirements while leveraging powerful AI capabilities.
Government & Public Sector Ready: Create AI-powered solutions that meet government data sovereignty requirements. All processing and storage stays within UK borders, backed by OneAdvanced's enterprise credentials.
Enterprise Data Control: Keep sensitive corporate data within UK borders while leveraging powerful AI capabilities. Full API compatibility lets you migrate existing applications with confidence.

OpenAI Compatible API

Use the OpenAI JavaScript SDK with our API endpoint. Just change your base URL and API key - your existing code works without modifications.

chat.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: process.env['OAAI_API_KEY'],
  baseURL: 'https://api.oneadvanced.ai/v1/',
});

const completion = await client.chat.completions.create({
  model: 'meta-llama-4-maverick-FP8',
  messages: [
    { role: 'developer', content: 'You are a helpful business assistant. Provide clear, professional responses.' },
    { role: 'user', content: 'Draft a professional email response to a client inquiry about our API services.' },
  ],
});

Start Building for Free

Get started with our free tier and explore the full power of OneAdvanced AI. No credit card required. Paid plans with higher limits coming soon.

Developer Free Tier

Perfect for getting started with OneAdvanced AI. Build and test your applications with generous rate limits at no cost. Paid plans with increased limits will be available soon.

Rate limits included

15 requests per minute
5,000 tokens per minute
50,000 tokens per day

No credit card required

Free

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Paid plans with higher limits coming soon

Frequently asked questions

: Getting started is easy. Sign up for a free account, generate your API key, and make your first request.
: Yes, our API follows OpenAI standards for chat completions. You can use existing OpenAI client libraries, tools, and code with minimal changes - just update the API endpoint and your API key. This makes migration seamless and lets you leverage the OpenAI ecosystem while keeping your data in the UK.
: We use meta-llama-4-maverick-FP8, a powerful language model optimized for chat completions and content generation. This model delivers high-quality responses while maintaining performance and efficiency for production workloads.
: Build chatbots, virtual assistants, content generators, code assistants, document analyzers, customer support automation, and internal knowledge bases. Any application that needs conversational AI or text generation can leverage our API while maintaining UK data sovereignty.
: The free tier includes 15 requests per minute, 5,000 tokens per minute, and 50,000 tokens per day. Paid plans with higher limits will be available soon.
: Paid plans are coming soon and will offer significantly higher rate limits to support production workloads and scaling your applications.
: Your data privacy is our priority. We do not use your API requests or data to train our models. All data is encrypted in transit and at rest. We retain request logs for debugging purposes only, following industry-standard retention policies. See our privacy policy for complete details.

Ready to Build with UK Sovereign AI?

Start building AI applications that comply with UK data sovereignty requirements. Get started with our free tier - no credit card required. Your data stays in the UK.

Get Started