One API key for hundreds of AI models from every major provider
Crazyrouter records 77,144 monthly visits with +1.8% month-over-month growth and Paid pricing. RouterBase records 8,326 monthly visits with +33.7% growth and Paid pricing.

One OpenAI-compatible API for 200+ AI models
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | crazyrouter.com | routerbase.com |
| Pricing Model | Paid | Paid |
| Monthly Visits | 77.14K (77,144) | 8.33K (8,326) |
| MoM Traffic Delta | +1.34K (+1.8%) | +2.1K (+33.7%) |
| Primary Market & Share | 🇨🇳 China (22.9%) | 🇮🇳 India (38.4%) |
| Direct Visits / mo | 28.23K | 2.84K |
| User Rating | 3.9 | 4.3 |
| Supported Platforms | Website | Website |

One API key, hundreds of AI models behind a single endpoint
Create a single API key and call hundreds of text, image and video models without managing separate accounts at each provider.
Requests follow the common formats, so existing SDKs and CLI tools (including Claude Code and Codex CLI) work after changing only the base URL.
A pricing view lists popular models sorted by input cost and links straight to a filtered price page, making cost comparison straightforward.
Multiple nodes schedule requests dynamically to reduce wait time, with redundant links and failover to limit the impact of any single outage.

One OpenAI-compatible API for 200+ AI models
RouterBase is a drop-in replacement for the OpenAI SDK: change the base URL and route to 200+ models from OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, and xAI.
Auto-select the best provider per request by price, latency, or availability, and fall back to another provider in milliseconds when one fails.
Pay against a single balance and get one invoice across every provider instead of juggling a dozen accounts.
Track spend by model, API key, or project, export to CSV, or query via the API, and set per-key monthly spend caps.
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

One OpenAI-compatible API key for 500+ AI models
One OpenAI-compatible API key for 500+ AI models

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

Free / Open-sourceOne API for LLM, image, video, and audio models in production
Free / Open-sourceOne API for LLM, image, video, and audio models in production
One API key for hundreds of AI models

Free / Open-sourceOne universal API for 500+ AI models and 1,000+ agentic tools

One OpenAI-compatible key for discounted GPT, Claude and Gemini access

One API gateway and LLM router for around 1,000 AI models
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