AtmoRouter

AtmoRouter is an OpenRouter alternative that gives you one API key for 150+ models. Key features: • One key compatible with OpenAI and Anthropic API formats • Access Claude, GPT, Gemini, DeepSeek, and many other frontier models • Works with coding agents such as Claude Code, Cursor, and Cline • Quick setup with npx @atmorouter/helper • Pay-as-you-go prepaid top-ups with no subscription • Failed upstream requests are not billed Switching models usually means managing multiple provider accounts, billing dashboards, and SDK configurations. AtmoRouter consolidates that work into a single endpoint. You point your existing OpenAI or Anthropic client at AtmoRouter, swap in your key, and call any supported model without rewriting your code. Streaming responses are supported, so chat interfaces and agent tools keep their real-time feel. Billing is simple. You add prepaid credit and spend it token by token, with no monthly plan to forget about. Pricing is typically well below official list prices, and requests that fail upstream are not charged, so you only pay for work that completes. Usage and deposits are visible in your account, which makes it easier to track costs across projects. This gateway suits independent developers, startups, and engineering teams who want to compare models, control spending, and avoid vendor lock-in. It is also useful for anyone building coding assistants, chatbots, or internal tools that need reliable access to several providers through one interface.