OpenRouter

OpenRouter is an API service that provides unified access to over 400 AI models from 70+ providers through a single interface. Developers can route requests to any model with automatic fallback, manage costs with pay-as-you-go credits, and implement custom data policies. The platform supports OpenAI-compatible API for easy integration, offers caching, activity logs, and budget controls. Best suited for developers, indie hackers, and startups building AI-powered applications, chatbots, or agents that need flexibility in model selection and reliable uptime.