---
title: "Vs30 Lookup"
method: POST
path: "/api/v1/vs30"
---

# Vs30 Lookup

`POST /api/v1/vs30`

## Request

- Base URL: `https://www.deepmapai.com`
- URL: `https://www.deepmapai.com/api/v1/vs30`
- Auth: none declared

Look up Vs30 site classification for any location.

Uses nearest RS stations and cached interferometry results.
Returns NEHRP site class (A-E) and Vs30 value.

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

## Headers

- `x-api-key` string

## Request body

- Vs30LookupRequest: Vs30 site classification lookup.
  - `lat` number, required
  - `lon` number, required
  - `radius_km` number: Search radius for nearest RS stations

## 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)