DEV Community

Felix
Felix

Posted on

How I Built a Cheaper Alternative to OpenRouter — And How You Can Use It Today

#api #tutorial #webdev #ai

How I Built a Cheaper Alternative to OpenRouter — And How You Can Use It Today

If you've been building AI-powered applications, you know the pain: API bills add up fast.

OpenRouter charges a 5% markup on every call. Going directly to OpenAI or Anthropic means managing multiple API keys, billing accounts, and rate limits. Self-hosting requires infrastructure expertise and GPU costs.

I got tired of it. So I built YixinToken — a one-stop API relay that gives you access to 50+ AI models through a single OpenAI-compatible endpoint, at a fraction of the cost.

What Is YixinToken?

Think of it as OpenRouter without the markup. You get:

  • ✅ 50+ models — GPT-4o, Claude 3.5 Sonnet, Gemini, DeepSeek, and more
  • ✅ OpenAI-compatible API — drop-in replacement, no code changes
  • ✅ One API key — no need to manage multiple provider accounts
  • ✅ Credit-based billing — pay as you go, no monthly commitment
  • ✅ Subscription plans — predictable pricing for heavy users

How It Works (With Code)

If you're already using the OpenAI SDK, switching takes zero code changes:

Python 

import openai

openai.api_key = "your-yixintoken-api-key"
openai.api_base = "https://yixintoken.com/v1"

response = openai.ChatCompletion.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)
Enter fullscreen mode Exit fullscreen mode

JavaScript / Node.js 

const response = await fetch("https://yixintoken.com/v1/chat/completions", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": "Bearer YOUR_API_KEY"
  },
  body: JSON.stringify({
    model: "gpt-4o",
    messages: [{ role: "user", content: "Hello!" }],
    stream: true
  })
});
Enter fullscreen mode Exit fullscreen mode

cURL 

curl -X POST https://yixintoken.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "gpt-4o",
    "messages": [{"role": "user", "content": "Hello!"}],
    "stream": true
  }'
Enter fullscreen mode Exit fullscreen mode

Why I Built This

I was working on a side project that needed to call multiple models — GPT-4 for reasoning, Claude for writing, and Gemini for vision tasks. Managing three separate API keys, three billing accounts, and three different SDKs was a nightmare.

The solution seemed obvious: a single API endpoint that routes to the best model for each task, with unified billing.

YixinToken is the result of that frustration turned into a product.

Pricing Compared

Service Pricing Model Markup
OpenAI Direct Pay per token N/A (expensive for intl users)
Anthropic Direct Pay per token N/A
OpenRouter Pay per token ~5% markup
YixinToken Credits / Subscription Lower than direct

For developers outside the US, the savings are even bigger — no currency conversion fees, no international payment issues.

Getting Started

  1. Go to yixintoken.com
  2. Create an account
  3. Go to API Keys and generate a key
  4. Use the OpenAI-compatible endpoint in your app
  5. Top up credits or pick a subscription plan

The first few calls are free — try it out with no commitment.

What's Next

I'm actively adding more models and features. Currently on the roadmap:

  • Streaming chat interface for testing prompts
  • Usage analytics dashboard
  • Team accounts with shared billing
  • More regional models (Qwen, ERNIE, etc.)

Got a model you'd like to see? Drop a comment below or reach out through the site.

Building AI apps shouldn't break the bank. If this helped you, give it a ❤️ and share it with another dev who's tired of API bills.

Top comments (0)