---
title: "Search coordinate systems | Guides"
description: "Search for coordinate reference systems using the Coordinates API."
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Search coordinate systems

This page shows how to search coordinate systems using our [Coordinates API](https://docs.maptiler.com/cloud/api/coordinates/). You can also use this service with the [API client JS](https://docs.maptiler.com/client-js/#search).

For a beginner intro into the service, see [Work with coordinate systems](https://docs.maptiler.com/guides/location-services/coordinates/).

Key

You need a **MapTiler API key** to use this service. [Get it here](https://cloud.maptiler.com/account/keys/) and [learn how to secure it](https://docs.maptiler.com/guides/credentials/api-key/#secure-key).

The universal search URL format is:

```text
https://api.maptiler.com/coordinates/search/{QUERY}.json?{PARAMS}&key=YOUR_MAPTILER_API_KEY_HERE
```

| **Parameters** | **Description** | **Example** |
| --- | --- | --- |
| QUERY | Query on CRS | 2056.json  
swiss.json  
czechia deprecated:1.json |
| PARAMS | Parameter for showing exports in WKT and Proj4, limit the number of results of show transformations. | swiss.json?limit=1  
exports=true&limit=5 |

## Example

**Request**

```text
https://api.maptiler.com/coordinates/search/swiss lv95.json?exports=true&key=YOUR_MAPTILER_API_KEY_HERE
```

**Response**

```json
{
   "results": [
     {
       "id": {
          "authority": "EPSG",
          "code": 2056
},
       "kind": "CRS-PROJCRS",
       "name": "CH1903+ / LV95",
       "exports": {
          "proj4": "+proj=somerc +lat_0=46.9524055555556 +lon_0=7.43958333333333 +k_0=1 +x_0=2600000 +y_0=1200000 +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs +type=crs",
          "wkt": "PROJCS[\"CH1903+ / LV95\",GEOGCS[\"CH1903+\",DATUM[\"CH1903+\",SPHEROID[\"Bessel 1841\",6377397.155,299.1528128],TOWGS84[674.374,15.056,405.346,0,0,0,0]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4150\"]],PROJECTION[\"Hotine_Oblique_Mercator_Azimuth_Center\"],PARAMETER[\"latitude_of_center\",46.9524055555556],PARAMETER[\"longitude_of_center\",7.43958333333333],PARAMETER[\"azimuth\",90],PARAMETER[\"rectified_grid_angle\",90],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",2600000],PARAMETER[\"false_northing\",1200000],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Easting\",EAST],AXIS[\"Northing\",NORTH],AUTHORITY[\"EPSG\",\"2056\"]]"
       },
       "unit": "metre",
       "accuracy": 1,
       "area": "Liechtenstein; Switzerland.",
       "bbox": [
          5.96,
          45.82,
          10.49,
          47.81
       ],
       "deprecated": false,
       "default_transformation": {
          "authority": "EPSG",
          "code": 1676
       },
       "transformations": [
          1509,
          1647,
          1676,
          8457
       ]
     }
   ],
   "total": 1
}
```

For more details, see the [Coordinates API `Search` reference](https://docs.maptiler.com/cloud/api/coordinates/#tag/coordinates/GET/coordinates/search/{query}.json).