About
AtmoRouter is a cheap AI API gateway that puts 109 frontier models from 12 families behind one OpenAI-compatible endpoint (https://atmorouter.dev/v1), and also accepts Anthropic-compatible clients. Change the base URL, keep your SDK, and tools like Cursor, Cline, Claude Code and any OpenAI client keep working.
Billing is pay-per-token with no monthly plan, seats or minimum. Input and output are priced separately from the upstream usage report, cached input bills at 10% of the input rate, and failed upstream requests are never billed. AtmoRouter advertises an average of 83.7% below official prices. Top up with QRIS or USDC on Solana, with no card on file.
Built for agents: full SSE streaming with usage on the final frame, unlimited keys with per-key rate limits and model allowlists, and per-request logs with tokens, latency and cost. For teams comparing an OpenRouter alternative, AtmoRouter focuses on low per-token prices and simple local payment.