---
title: "AI Recommendation Index — category rankings (flat CSV)"
method: GET
path: "/api/index/{slug}.csv"
tags: ["AI Index"]
---

# AI Recommendation Index — category rankings (flat CSV)

`GET /api/index/{slug}.csv`

## Request

- Base URL: `https://api.orbator.io`
- URL: `https://api.orbator.io/api/index/{slug}.csv`
- Auth: one of:
  - none
  - API key in header `X-Api-Key`
  - HTTP bearer

The same category payload flattened to CSV: one row per ranked product, per-engine shares as columns; sample size, window, and methodology URL repeat on every row and ride the X-Sample-Size / X-Window-From / X-Window-To / X-Methodology-Url response headers.

## Path parameters

- `slug` string, required

## Response `200`

Flat CSV of category rankings

## Other responses

- `404`: Unknown or unpublished category
- `429`: Hourly quota exceeded for the current tier. Retry after the Retry-After header.

---

[API](https://skmtc.dev/orbator/apis/orbator-public-api.md) · [All operations](https://skmtc.dev/orbator/apis/orbator-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/orbator/apis/orbator-public-api/revisions/7d1cf20c2163?raw)