Open your account.

You sign up in thirty seconds, verify your email and get your sk-airouter-… key with 500 credits.

SDK surfaces

1·3·5

credits per level

to classify

Automatic routing

Every request goes to the cheapest model that can answer it, across different providers.

Router presets

You pin the model for each level and assign the preset to an API key or to the MCP server.

Logs and costs

Model, credits, estimated cost and latency for every request. No prompt content is kept.

Three surfaces

OpenAI SDK, Anthropic SDK and MCP server: same key, same balance.

Also inside

SSE streaming Category aliases Multi-hub fallback Signed webhooks Memory store No prompts in the logs

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