---
title: "List Isd Stations Endpoint"
method: GET
path: "/api/stations/isd"
tags: ["Stations and data"]
---

# List Isd Stations Endpoint

`GET /api/stations/isd`

## Request

- Base URL: `https://epw.tools`
- URL: `https://epw.tools/api/stations/isd`
- Auth: none declared

Return nearby NOAA ISD stations from the bundled isd-history.csv inventory.

Powers the map's station-picker overlay so users can see every ISD station
in range — not just the subset Meteostat indexes. Each station carries its
begin/end of record so the UI can grey out stations not active in the year
being requested.

## Query parameters

- `lat` number, required: Latitude in decimal degrees
- `lon` number, required: Longitude in decimal degrees
- `year` integer: Optional year to flag in-service stations
- `radius_km` number
- `max_results` integer

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/epw/apis/epw-tools-api.md) · [All operations](https://skmtc.dev/epw/apis/epw-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/epw/apis/epw-tools-api/revisions/e6b60fc7a6d7?raw)