---
title: "Retrieve a list of available vector tilesets for the specified collection."
method: GET
path: "/collections/{collectionId}/tiles"
tags: ["Tile Sets"]
---

# Retrieve a list of available vector tilesets for the specified collection.

`GET /collections/{collectionId}/tiles`

## Request

- Base URL: `https://api.os.uk/maps/vector/ngd/ota/v1`
- URL: `https://api.os.uk/maps/vector/ngd/ota/v1/collections/{collectionId}/tiles`
- Auth: none declared

## Path parameters

- `collectionId` 'ngd-base' | 'asu-bdy' | 'wtr-ctch' | 'trn-ntwk-railway' | 'wtr-tidalboundary', required

## Response `200`

List of available tilesets.

- CollectionVectorGetTileSetsList200Response
  - `links` Link[]
    - `href` string, required: Supplies the URI to a remote resource (or resource fragment).
    - `rel` string, required: The type or semantics of the relation.
    - `type` string: A hint indicating what the media type of the result of dereferencing the link should be.
    - `templated` boolean: This flag set to true if the link is a URL template.
    - `varBase` string: A base path to retrieve semantic information about the variables used in URL template.
    - `hreflang` string: A hint indicating what the language of the result of dereferencing the link should be.
    - `title` string: Used to label the destination of a link such that it can be used as a human-readable identifier.
    - `length` integer
  - `tilesets` TileSetItem[], required
    - `id` string: identifier of the tile matrix set
    - `title` string: A title for this tileset
    - `dataType` 'map' | 'vector' | 'coverage', required: Type of data
    - `crs` string, uri, required: Reference to one coordinate reference system (CRS)
    - `tileMatrixSetURI` string, uri: Reference to a Tile Matrix Set on an offical source for Tile Matrix Sets such as the OGC NA definition server (http://www.opengis.net/def/tms/). Required if the tile matrix set is registered on an open official source.
    - `links` Link[], required: Links to related resources. A 'self' link to the tileset as well as a 'http://www.opengis.net/def/rel/ogc/1.0/tiling-scheme' link to a definition of the TileMatrixSet are required.
      - `href` string, required: Supplies the URI to a remote resource (or resource fragment).
      - `rel` string, required: The type or semantics of the relation.
      - `type` string: A hint indicating what the media type of the result of dereferencing the link should be.
      - `templated` boolean: This flag set to true if the link is a URL template.
      - `varBase` string: A base path to retrieve semantic information about the variables used in URL template.
      - `hreflang` string: A hint indicating what the language of the result of dereferencing the link should be.
      - `title` string: Used to label the destination of a link such that it can be used as a human-readable identifier.
      - `length` integer

## Other responses

- `400`: The request was not supported.
- `404`: The requested resource does not exist on the server. For example, a path parameter had an incorrect value.
- `405`: The HTTP method requested is not supported. This endpoint only supports 'GET' requests.
- `406`: A request header value was not supported.
- `500`: A server error occurred.
- `504`: Gateway Timeout.

---

[API](https://skmtc.dev/ordnance-survey/apis/ngd-tiles.md) - [All operations](https://skmtc.dev/ordnance-survey/apis/ngd-tiles/llms.txt) - [OpenAPI document](https://skmtc.dev/ordnance-survey/apis/ngd-tiles/revisions/7f01b91d9389?raw)