Affordable AI API gateway for frontier models at up to 89% below official pricing
OpenAI-compatible AI API relay for multiple AI models with prepaid wallet billing
Stage
Not given
Not given
Founded
Not given
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Based in
Not given
HK
Pricing model
Paid
Paid
Pricing
Pay per million tokens in USD with no subscription or minimum spend. Prices vary by model and provider. Example flagship models: Claude (from $5.9/$29.5 input/output per million tokens), GPT-6-Astra (from $0.175/$0.875), Claude Opus (from $0.0125/$0.0625). Prompt caching at 10% of input rate where s
Chat models from $0.019708 per million tokens; Image models from $0.00386 per image; Video models from $0.016 per second; Audio models from $0.00291 per request; Embedding models from $0.019 per million tokens. Example rates: Grok 4.6 at $1.9 input/$5.7 output per million tokens, Claude Opus 5.5 at
Key features
OpenAI-compatible endpoint
Access to 171 frontier models
Automatic failover across upstream providers
Per-token billing from upstream usage reports
Full SSE streaming passthrough
Per-key rate limits and model allowlists
Complete usage logs with cost breakdown
Anthropic Messages API support
Prompt caching at 10% of input rate
Health tracking per provider family
OpenAI-compatible base URL and SDK support
197 AI models across 30 brands
Chat, image, video, audio and embedding models
Prepaid wallet billing with per-token pricing
Minimum $1 top-up with multiple payment methods
Alipay, Stripe, Antom and cryptocurrency payments
Dashboard with usage and spending records
Seven-language interface
API keys and spending limits management
Public API status page for provider availability
What makes it different
Single API key for 171 models across 19 families with no per-provider signups
Up to 89% savings below official pricing on frontier models
Automatic failover ensures requests route around capacity outages
Pay only for tokens consumed with no monthly subscription or minimum spend
Exact billing metered from upstream usage, never estimated from characters
Single API key and endpoint for 197 models from 30 brands
OpenAI SDK compatibility with one-line URL change
Global payment options including cryptocurrency and Alipay
Transparent per-model pricing visible before API calls
Support for emerging AI providers and latest models
AtmoRouter
TokenMix