To use the Mapzen Search service, you must first obtain a free, developer API key. Sign in at https://mapzen.com/developers to create and manage your API keys.
Because Mapzen Search is a free, shared service, there are limitations on the numbers of requests to prevent individual users from degrading the overall system performance.
If you need more capacity, contact [search@mapzen.com](mailto:search@mapzen.com). You can also set up your own instance of [Pelias](https://github.com/pelias/pelias), which has access to the same data used in Mapzen Search.
Mapzen Search works over HTTPS, in addition to HTTP. You are strongly encouraged to use HTTPS for all requests, especially for queries involving potentially sensitive information, such as a user's location or search query.