One API
for Every AI Model
Ultra-low China latency · 100% OpenAI compatible · 200+ models switchable with one click Zero-code migration, best value, pay per token with no monthly fees
Why UnionToken?
Multi-model API gateway built for developers, solving all pain points of LLM integration
Ultra-Low Latency
Optimized China routes, Beijing/Shanghai nodes, as low as 10ms
100% OpenAI Compatible
Just replace the base URL, no code changes needed — one line to access DeepSeek, Doubao, Qwen and other leading Chinese models.
Best Value
Volume pricing, tiered discounts, pay as you go. Smart routing automatically selects the optimal model, saving up to 40% on costs.
China-First Coverage
Full coverage of leading Chinese models including DeepSeek, Doubao, Qwen, and more — optimized pricing and ultra-low latency.
Transparent Pricing
No monthly fees, no subscriptions, no hidden charges, pay only for what you use
Smart Routing + Fallback
Price-priority / latency-priority / balanced routing modes. Auto-fallback when the primary model is unavailable.
Supported Models
Access models from top providers worldwide with one unified API
3 Lines of Code to Migrate
If you're already using the OpenAI API, just replace base_url and API Key — no code changes needed.
Testimonials
Hear what developers say
"UnionToken helped us quickly integrate DeepSeek and Qwen"
"Through UnionToken's aggregation service, we saved 60% on API costs..."
"Easy setup, detailed docs, and fast customer support response..."
Ready to Get Started?
Get 1M free tokens on registration, no credit card required 3-minute setup, zero cost to try all models