Zerouter

Zerouter is an AI API gateway and low-cost OpenRouter alternative positioned as a single access point for frontier models from Anthropic, OpenAI, Google, xAI and Moonshot. Developers use one Zerouter API key and one base URL to call Claude, GPT, Gemini, Grok and Kimi through OpenAI-compatible and Anthropic-compatible endpoints without changing their prompts, tools or coding clients. The service targets individual developers, AI coding-agent users, startups and cost-sensitive teams that rely on Claude Code, Codex CLI, Cursor or OpenAI SDKs and want predictable pay-per-use pricing. Core features include one-key access to multiple model families, published per-million-token rates, no model swaps or downgrades, request-level usage logs, key management, balance top-ups and a browser-based console. Content includes model catalogs with endpoint details, provider-specific pricing pages, integration guides, leaderboards, comparison pages and a token cost calculator. The experience emphasizes fast onboarding: users can inspect sample dashboards before signing in, copy the base URL, follow quickstarts and test requests from the browser. Technically, Zerouter routes calls to official model APIs through multiple providers, checks keys, balance and concurrency before routing, supports /v1/messages, /v1/responses and /v1/chat/completions, and encrypts login and payment. It offers no monthly subscription or minimum, with GitHub, X, Telegram, Discord and Medium community links.