Skip to content


Let's get you connected! The first thing you'll want to know is how to authenticate your requests. While you're here, we also encourage you to at least skim the documentation on limits.


Local development

You can get started developing locally without any special effort or cost. If your application is running via a development web server accessed via localhost or, we'll treat your requests as coming from a free plan. Note that this is designed for convenience of development on a single machine, and is rate limited accordingly. If you start receiving HTTP 429 responses, please sign up for an account (it's free!) and use an API key.

Domain-based authentication

Domain-based authentication is the easiest form of authentication for production web apps. No additional application code is required, and you don't need to worry about anyone scraping your API keys. We recommend this for most browser-based applications.

  1. Sign in to the client dashboard.
  2. Click "Manage Properties."
  3. Under "Authentication Configuration," click the button to add your domain.
Getting a 401 Unauthorized response or seeing a Stamen warning tile?

Domain authentication usually "just works" but sometimes it doesn't. These are a few common issues related domain authentication.

  • Referrer-Policy is set to no-referrer. Some platforms, such as Azure Static Web Apps, do this by default. Relaxing this header to something like strict-origin-when-cross-origin (if your site uses HTTPS; origin-when-cross-origin if using HTTP) will let us authenticate your requests while preserving privacy.
  • The Origin or Referer domain is a nested subdomain. If your site is hosted on, set the subdomain to a and the domain to as shown in the screenshot below:

Image illustrating a correctly filled out nested subdomain form

API keys

You will need to include an API key with each request that is made outside a web browser.

Generating and Revoking API keys

You can manage your API keys in the client dashboard.

  1. Sign in to the client dashboard. (If you don't have an account yet, sign up for free; no credit card required!)
  2. Click "Manage Properties."
  3. If you have more than one property (ex: for several websites or apps), make sure you have selected the correct property from the dropdown at the top of the page.
  4. Under "Authentication Configuration," you can generate, view or revoke your API key.

Screenshot of API key management in the client dashboard when no key exists

Video: How to generate your API key


Please take care not to expose your API key. You generally should use domain-based authentication for web browser applications. Use API keys only for requests coming from outside a web browser or for local development when you need to make requests in excess of the rate limit for keyless access.


Note that security of API keys is your responsibility, and requires special care whenever the application has end users outside your organization. While major mobile platforms like iOS encrypt and sandbox applications, all bets are off on a jailbroken device. You can mitigate these risks by having your app pull an API key from your servers at regular intervals, ideally via an authenticated endpoint. Always store secrets securely whenever possible. For mobile applications, most platforms have a secure credential storage and retrieval API, and we highly recommend using that.

Using your API key

You can use API keys in two ways. The simplest is to add a query string parameter api_key=YOUR-API-KEY to your request URL. You can alternately add an Authorization header with the value Stadia-Auth YOUR-API-KEY.

Authorization: Stadia-Auth YOUR-API-KEY