One API key for hundreds of AI models from every major provider
Auriko records 333 monthly visits with -74.3% month-over-month growth and Freemium, Free Trial, Contact for Pricing pricing. Respan records 91,503 monthly visits with -14.5% growth and Freemium pricing.

AI control plane for LLM routing, observability and FinOps
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | auriko.ai | respan.ai |
| Pricing Model | Freemium, Free Trial, Contact for Pricing | Freemium |
| Monthly Visits | 333 (333) | 91.5K (91,503) |
| MoM Traffic Delta | -964 (-74.3%) | -15.53K (-14.5%) |
| Primary Market & Share | 🇹🇼 Taiwan (100%) | 🇺🇸 United States (28.8%) |
| Direct Visits / mo | 139 | 23.12K |
| User Rating | 4.2 | 4.5 |
| Supported Platforms | Website | Website |

AI control plane for LLM routing, observability and FinOps
Access OpenAI, Anthropic, Google, DeepSeek, and many other providers through one drop-in endpoint while preserving provider-specific capabilities.
Model how your workload interacts with each provider's pricing and prompt-caching mechanics to route each request to the lowest-cost provider.
Optimize for cost, latency, throughput or custom goals, with constraints such as P95 TPS floors, input cost ceilings, ZDR-only providers and structured-output-only routing.
Redundant provider backing plus a globally distributed edge network keeps requests flowing and reduces time to first token.

Open-source AI gateway with observability and evals built in
Route to OpenAI, Anthropic, Google, xAI, DeepSeek, Qwen and many other models through a single API key and one OpenAI-compatible endpoint.
Keep your existing OpenAI, Anthropic, LangChain or Vercel AI SDK code and change only the base URL.
Automatic fallbacks, retries and load balancing across providers and API keys keep requests answering when a single provider rate-limits or fails.
Every call is logged and traceable, with evaluation tooling and a CLI so you can query logs and traces from your terminal.
One API key for hundreds of AI models from every major provider
One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control
One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control

Free / Open-sourceOne open-source AI gateway for 100+ LLM providers

One unified API for 100+ AI models, with insurance when output disappoints
One unified API for 100+ AI models, with insurance when output disappoints
One API key for hundreds of AI models
AI gateway, observability and guardrails for production LLM apps
Free / Open-sourceOne OpenAI-compatible API to route, monitor and control 250+ LLM models
Free / Open-sourceOne OpenAI-compatible API to route, monitor and control 250+ LLM models

Free / Open-sourceEvaluate, monitor, and govern your AI applications in production
Free / Open-sourceEvaluate, monitor, and govern your AI applications in production

One API key for 70+ AI models, 1,000+ data APIs and web tools
Free / Open-sourceOpen-source LLM observability and AI gateway for shipping reliable AI apps
Free / Open-sourceOpen-source LLM observability and AI gateway for shipping reliable AI apps

Free / Open-sourceThe open-source LLM gateway that fixes your agents' requests on the fly
Free / Open-sourceThe open-source LLM gateway that fixes your agents' requests on the fly

Free / Open-sourceAgent observability, evals and governance for AI platform teams
Free / Open-sourceAgent observability, evals and governance for AI platform teams