OnAPI

OnAPI is a pragmatic tool for developers who are tired of managing multiple API keys and billing for GPT, Claude, Gemini, and other models. The unified gateway saves time and reduces complexity, especially in multi-modal applications. The two-tier routing — value tier for cost-sensitive batch jobs and official tier for production reliability — is a standout feature, giving you fine-grained control over spend vs. uptime. We'd reach for this when building AI-powered apps that need to switch between providers quickly, or when you want to avoid vendor lock-in. The per-request billing and unified dashboard make it easy to track costs and usage across models. Where it bites: the documentation is sparse, and the pricing page lacks full transparency — you'll likely need to sign up to see exact rates. There's no free tier, so you can't trial it without paying. It's also not for beginners new to APIs or for use cases requiring on-premise deployment. Compared to competitors like OpenRouter or AI/ML API, OnAPI's dual-tier routing is unique, but OpenRouter offers a free tier and broader model selection. If you need guaranteed uptime on critical paths, the official tier here is solid. Real-world caveat: latency can vary with the value tier since it relies on spot capacity, so test both tiers for your workload.