OnAPI

OnAPI is a one-stop AI model API gateway built for developers who are tired of juggling accounts, invoices, and SDKs across half a dozen vendors. With a single key, you can handle text, image, video, and code across every major frontier model—GPT, Claude, Gemini, Sora, Veo, Banana, and more—so you can spend less time on plumbing and more time turning models into products and shipping ideas.

Two channels, you're in charge. Send everyday traffic to the high-performance value tier and stretch every dollar; when a workload is mission-critical, flip it to the official tier, backed by real paid keys hitting the providers directly. No reselling tricks, no smoke and mirrors, and no substituting cheap models for premium ones—just a reliable safety net when it counts.

Integration is painless because OnAPI is fully OpenAI-compatible. Change one line—your base_url—and you're done. It works out of the box with the OpenAI SDK, LangChain, Claude Code, Cursor, Cline, and Cherry Studio, so your existing workflow keeps running without a rewrite.

Payment is just as friction-free: no international credit card required. Pay with Alipay, WeChat Pay, or crypto, get billed by usage, and never worry about expiring balances—your credits never expire.