notrack.ai for builders: a chat to test in, an API to ship with
notrack.ai is two products: a free chat with no account for trying prompts, and api.notrack.ai, an OpenAI-compatible endpoint for building into your own project. Swapping in the new base URL and key is usually the entire migration from an existing OpenAI-style integration.
Testing a prompt by hand and shipping it in a product are 2 different jobs. notrack.ai separates them: the browser chat costs nothing and needs no sign-up, and the API behind it is a second, paid product built for code rather than typing.
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Where to test a prompt first
The chat at notrack.ai opens with no account, no email and no daily message cap, in 46 languages. It is the fastest way to check whether a prompt gets the answer you want before you wire anything into code. Recent chats are kept for 30 days in this browser and then deleted, and without an account nothing ties them to a profile you would need to clean up later; a new chat is a fresh test, not a continuation of the last one.
Moving from OpenAI's API to this one
api.notrack.ai is OpenAI-compatible: existing code that calls OpenAI's chat endpoint works after you change the base URL and the API key, without rewriting request or response handling. It runs its own model on its own hardware rather than proxying another provider, and it keeps no logs, sets no system prompt, and applies no topic filter on what you send it.
What it costs to run
The API is prepaid credit, not a subscription: $0.25 per 1 million input tokens, $1.00 per 1 million output tokens. A new key gets $1 of free credit for 7 days, enough to run a real test before deciding whether to top up. There is no monthly minimum, so a project that calls it rarely pays close to nothing, and one that calls it heavily can estimate the bill in advance from those 2 numbers alone.
The context window in practice
Each request supports up to 64,000 tokens of context, shared between your prompt, any text you paste in, and the reply. A long system prompt plus a long document will still hit that ceiling, so for large inputs you trim or summarise before sending rather than assuming the window is unlimited. Because there is no built-in system prompt, whatever instructions your code needs must be sent explicitly with every request.
What the API does not give you
notrack.ai does not publish which model answers your requests, does not claim end-to-end encryption, and does not publish user counts, so a production workload is worth testing against your own key before you rely on it. The free chat and the API are separate products: nothing you type in the browser chat carries over to API usage or billing.