---
title: "`GET /coordinates/crs?q=`."
method: GET
path: "/coordinates/crs"
tags: ["coordinates"]
---

# \`GET /coordinates/crs?q=\`.

`GET /coordinates/crs`

## Request

- Base URL: `https://api.mapmap.ai`
- URL: `https://api.mapmap.ai/coordinates/crs`
- Auth: one of:
  - HTTP bearer
  - API key in query parameter `api_key`

## Query parameters

- `q` string

## Response `200`

`{count, results: [{code, name, kind, unit, axes, accuracy, proj4}]}`. `accuracy` states the datum-shift error of every entry, including the exact ones

- object

## Other responses

- `401`: Missing or invalid API key
- `429`: Quota or rate limit exceeded

---

[API](https://skmtc.dev/mapmap/apis/sn-gateway.md) · [All operations](https://skmtc.dev/mapmap/apis/sn-gateway/llms.txt) · [OpenAPI document](https://skmtc.dev/mapmap/apis/sn-gateway/revisions/2293be8b4c38?raw)