---
title: "Schumann Extract Resonance"
method: POST
path: "/api/v1/frontier/schumann/extract-resonance"
tags: ["Schumann Resonance + Seismicity"]
---

# Schumann Extract Resonance

`POST /api/v1/frontier/schumann/extract-resonance`

## Request

- Base URL: `https://www.deepmapai.com`
- URL: `https://www.deepmapai.com/api/v1/frontier/schumann/extract-resonance`
- Auth: none declared

Extract Schumann resonance harmonic amplitudes from magnetic field data.

Applies spectral analysis to the input magnetic signal to isolate
the fundamental (7.83 Hz) and higher harmonics of the Schumann
resonance.

Parameters (JSON body):
- magnetic_signal : list[float] -- Magnetic field time series (nT)
- sample_rate_hz : float -- Sampling rate in Hz
- harmonics : list[int] -- Harmonic numbers to extract (default [1..5])

**Pricing:** Included in subscription tiers (legacy list price: GET /api/v1/billing/pricing).

## Query parameters

- `x_api_key` string, nullable

## Request body

- object

## Response `200`

Successful Response

- unknown

## 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)