---
title: "The spectral-index catalog (NDVI/NDWI/…) — id, formula, required bands, default colormap."
method: POST
path: "/v1/op/indices.list"
tags: ["kernel-ops"]
---

# The spectral-index catalog (NDVI/NDWI/…) — id, formula, required bands, default colormap.

`POST /v1/op/indices.list`

## Headers

- `x-api-key` string, nullable

## Request body

- SrcOperationsVisualizationVocabularyIndicesListInput
  - `category` string, nullable

## Response `200`

Successful Response

- IndicesListOutput
  - `indices` IndexInfo[], required
    - `id` string, required
    - `name` string, required
    - `formula` string, required
    - `required_bands` string[], required
    - `description` string, required
    - `category` string, required
    - `colormap` string, required
    - `value_range` number[], required
  - `count` integer, required
  - `categories` string[], required

## Other responses

- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `422` — Validation Error
- `500` — Internal Server Error

---

[API](https://skmtc.dev/geopera/apis/geopera-data-platform.md) · [All operations](https://skmtc.dev/geopera/apis/geopera-data-platform/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/geopera/geopera-data-platform/revisions/cb0130b2a40a/schema)