---
title: "Features"
method: GET
path: "/api/v1/cross/mantle-anelasticity/features"
tags: ["Mantle Anelasticity (M2 Phase Delay -> Q)"]
---

# Features

`GET /api/v1/cross/mantle-anelasticity/features`

## Request

- Base URL: `https://www.deepmapai.com`
- URL: `https://www.deepmapai.com/api/v1/cross/mantle-anelasticity/features`
- Auth: none declared

12 mam_* features at a single location.

Falls back to PREM-baseline Q=280 when no IGETS station is within
a defensible radius (with `data_real=0`).

## Query parameters

- `lat` number, required: Site latitude (WGS-84)
- `lon` number, required: Site longitude (WGS-84)
- `window_days` integer: LS-fit window (days; min 14, max 365)
- `x_api_key` string, nullable

## Response `200`

Successful Response

- object

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/deepmapai/apis/deepmap-ai.md) · [All operations](https://skmtc.dev/deepmapai/apis/deepmap-ai/llms.txt) · [OpenAPI document](https://skmtc.dev/deepmapai/apis/deepmap-ai/revisions/dab995d977d0?raw)