---
title: "Retrieve the set of OS NGD API – Tiles conformance classes that are supported by this service."
method: GET
path: "/conformance"
tags: ["Landing Page"]
---

# Retrieve the set of OS NGD API – Tiles conformance classes that are supported by this service.

`GET /conformance`

## Request

- Base URL: `https://api.os.uk/maps/vector/ngd/ota/v1`
- URL: `https://api.os.uk/maps/vector/ngd/ota/v1/conformance`
- Auth: none declared

## Response `200`

The URIs of all conformance classes supported by the server

- GetConformance200Response
  - `conformsTo` string[], required

## 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)