Introduction

When building the AI API relay product, we first asked ourselves a question:

What do developers really need?

The answer is simpler than expected: Don’t make them struggle.

Principle 1: Zero Migration Cost

A good API service should not force users to learn new things.

So we chose 100% OpenAI compatibility. No changes to SDK, request format, or response structure.

Users change base_url from api.openai.com to www.ciyuano.com, and everything stays the same.

This is not a technical compromise, but a product attitude——respecting users’ existing knowledge and code.

Behind one key, there may be:

But users only see one thing: Call succeeded.

Leave the complexity to the platform, keep it simple for the user.

The console provides details of each cost and the health status of each channel.

But we don’t require users to constantly monitor it. Proactive alerts on anomalies, quiet operation when normal.

Prepaid model: User account balance, platform never touches it.
Real-time billing: Every penny spent is crystal clear.
Data minimization: Only log necessary request logs, do not store user conversation content.
Open source self-deployment: Provide a complete API key management system.

New users receive credits upon registration, no time limit. This is based on a belief: A good product should let people try before deciding.

The market is not short of AI API services; what is lacking are services that truly take developer experience seriously.

Ciyuano won’t be the cheapest, nor the fanciest. But we hope it will be the most hassle-free for you to use.

Give it a try, you’ll know in 5 minutes.