Pydantic AI Gateway offers a streamlined approach for integrating multiple AI models with a single API key. Developers can access models from providers like OpenAI, Anthropic, Google, and AWS Bedrock without needing to swap credentials. The setup requires just one line of code, making it easy to implement. This service is particularly attractive because it bypasses traditional middleware, allowing requests to flow in their native format, which means new features from providers become available immediately. Cost control is a key feature, allowing users to set spending limits based on projects, users, or API keys. Users can choose their timeframe for limits, whether daily, weekly, or monthly. The platform also supports self-hosting options, letting enterprises deploy the service on their own infrastructure or through Cloudflare. Built-in observability with Logfire enables detailed tracking of requests, ensuring transparency in API usage. Pydantic AI Gateway is currently free as the team gathers feedback, with no credit card required for access. The service comes with zero margin on built-in provider inference, meaning users won't incur additional fees during this initial phase. For those wanting to use their own API keys, the Bring Your Own Key option is available at no cost. Full pricing details are expected to be released soon.