# indextkn

> indextkn tracks the published list price of every model each major AI provider sells — 900+ models across 15 providers — and serves them as one fast, versioned REST API. Prices are read straight from each provider's own pricing page or public API, re-polled every five minutes, and every price carries an accuracy status so you can tell how much to trust it.

The API lives at `https://api.indextkn.com/api/v1`. Every data endpoint takes a Bearer key (`Authorization: Bearer itk_live_…`); keys are free, created on the dashboard, and metered at 1,000 requests per month per account. Responses are JSON, prices are USD, and token prices are per 1,000,000 tokens unless an offer's `unit` says otherwise.

Three words are used throughout, and they are not interchangeable:

- **lab** — who *built* a model (`anthropic`, `openai`, `meta`, …).
- **provider** — who *sells* access to it (`anthropic`, `aws`, `openrouter`, `groq`, …). The same model is usually sold by several, at different prices.
- **offer** — one provider's price for one model. This is the unit `/prices` returns, and the thing that actually has a price, a context window and a status.

## API

- [Full API reference](https://indextkn.com/llms-full.txt): every endpoint, parameter, response field, error code, status value, rate limit and worked example, in one file. Start here — it is written to be read in a single pass.
- [Endpoint index](https://api.indextkn.com/api/v1): the live JSON list of v1 endpoints and the auth scheme. No key required.
- [API documentation](https://indextkn.com/docs): the same reference as a web page, with a playground that runs real requests against a reader's own key.

## Site

- [Price table](https://indextkn.com/): every tracked model with each provider's input, output and cache prices, context window and last change. Filter by lab and modality, search ids and tags, expand a model to see per-provider price history.
- [Dashboard](https://indextkn.com/dashboard): create and revoke API keys, and see this month's usage against the limit.
- [Sign in](https://indextkn.com/login): GitHub or a one-time email link. Free, and it is the only way to get a key.

## Optional

- [Changelog](https://indextkn.com/changelog): what shipped, newest first.
- [Terms of Service](https://indextkn.com/terms): 1,000 requests/month per account; the data is for use inside your own products and workflows, not for redistribution as a dataset or for recreating the underlying database.
- [Privacy Policy](https://indextkn.com/privacy): what an account stores, and for how long.