AI Router · one OpenAI-compatible endpoint · every request to the right model · up to 90% less spend · 500 welcome credits · no card required
AI Router · one OpenAI-compatible endpoint · every request to the right model · up to 90% less spend · 500 welcome credits · no card required
airouter
simple · 1 credit
0.9 s ✓
moderate · 3 credits
1.8 s
complex · 5 credits
3.4 s
18 features · all of them real · nothing to switch on

The whole product,
built to talk to your code.

Logs and analytics Live traffic Path of a request Levels side by side Preset checks Category aliases Free models Memory store Catalog and costs Budget per call Drop-in in two lines Enriched response Keys per project 3 surfaces · OpenAI/Anthropic/MCP Compatible SDKs SSE streaming Signed webhooks Security and privacy

Routing knows your presets. Presets know your keys. The log knows what every request cost. Below is everything AI Router does today — not what it will do.

18
features
3
surfaces
1
balance
10 model families
one endpoint for all of them
OpenAI ANTHROPIC google gemini // meta llama QWEN Mistral DeepSeek xAI Cohere. NVIDIA
OpenAI ANTHROPIC google gemini // meta llama QWEN Mistral DeepSeek xAI Cohere. NVIDIA
— Why a single endpoint

Built as
one product.

Most AI stacks bolt together pieces that never talk to each other: one library per provider, a spreadsheet for the costs, a guess about which model answered. Here the choice of model, the price and the log are the same thing.

i One decision only

Complexity is set by whoever reads the request.

A classifier that costs you no credits decides the level. Model, price and log line all follow from it: none of the three is a guess.

ii Composable

Presets, aliases and overrides coexist with no wiring.

You assign a preset to a key, use an alias per request, force the level when you need to. No middleware, no configuration to keep aligned by hand.

iii One balance only

You pay for the request — never the provider, never the seat.

Whether it goes through Gemini, Qwen, Claude or GPT, the bill is the same: credits per level. One key, one invoice, no contract per provider.

“The right model is not the most powerful one: it is the cheapest one that answers well. That sentence, put inside an endpoint, is the whole product.”

AR
The AI Router team
airouter.it
routing levels
3
credits to decide
0
FAQ

About the features.

Want the technical detail? The OpenAPI documentation is at /docs.

Are the features included in every plan?

Automatic routing, category aliases and SSE streaming are there from the start, free plan included. Presets, webhooks, the MCP server and the memory store scale with the plan: the pricing table has the detail.

Can I choose which model serves each level?

Yes — that is exactly what presets are for: you pin the model for Simple, Moderate and Complex, then assign the preset to a single API key or to the MCP server. Start from 20 ready-made presets across 9 use categories, or save your own.

Does streaming work on every surface?

Yes. SSE streaming is native on /v1/chat/completions, /v1/messages and /v1/responses: same conduit, same events, no buffering in between.

What do you record about each request?

The model actually used, the level chosen and who chose it (classifier, alias, preset or an explicit override), input and output tokens, credits, estimated cost in USD, latency, and whether a fallback kicked in. Not the content.

Which agents does the MCP server work with?

It is Model Context Protocol over streamable HTTP, with the same Bearer authentication as the API calls: any MCP client can use it. It exposes one tool, ask_airouter.

Can I use the free models?

Yes, and the editor flags it: zero-cost models exist, but they can be unavailable or answer poorly. It is a deliberate choice, not a surprise.

— Try them on your own traffic

The feature you need
is already on.

Nothing to switch on: routing, presets, logs and SDK surfaces come with the plan you pick.

What you get right away
sk-
Your own API key
sk-airouter-… · live immediately
500
Welcome credits
when you verify your email
3
Compatible surfaces
OpenAI · Anthropic · MCP