The independent index for what AI capability costs

Read the index. Cite the source.

Headline TKX / Open / Frontier are public and no-key. Keys, credits, and subscribe live on the platform Worker until the fuller portal ships.

Docs

Portal docs

Auth, cite-the-TKX, and examples. Same Worker as keys and billing.

API

Index API

Live series, 30-day anonymous history, OpenAPI. No Analysis POST.

Quickstart

Developer portal

Issue a key, see credits, open the documented subscribe path.

Widget

Live TKX widget

Public embed of the current print. Attribution is built in.

The Index API returns positioning data you can cite, price against, or feed into your own routing — Cambent publishes the signal; your stack makes the choice.