API Key

Glossary

What is an API key?

An API key is a unique identifier used to authenticate a user, developer, or calling program to an API. This key is used to track and control how the API is being used, for example, to prevent malicious use or abuse of the API (as defined by policies set up by the API provider), and to provide a level of security for the data exposed by the API.

What is an API key used for?

An API key is a unique identifier used to authenticate a user, developer, or calling program to an API. This key is used to track and control how the API is being used, for example, to prevent malicious use or abuse of the API (as defined by policies set up by the API provider), and to provide a level of security for the data exposed by the API. In addition to authentication, API keys play a crucial role in authorization by determining the level of access granted to the user or application. They enable API providers to enforce usage limits, monitor access patterns, and ensure compliance with terms of service.

How does an API key work?

API keys work by providing a means of authentication for API requests. When a user or application makes a request to an API, they include their API key in the request. The API server then verifies the key against its database of valid keys. If the key is valid and authorized for the requested operation, the API processes the request. If the key is invalid or unauthorized, the API denies access and returns an error response. By passing the key in the header of the HTTP request, API keys are transmitted securely and can be validated efficiently by the API server.

What is my API key?

Your API key is a unique token provided to you by the service or platform offering the API. It acts as a secret credential that identifies you or your application when making requests to the API. The key is typically passed in the header of the HTTP request made to the API, ensuring secure transmission. API keys are not a method of authorization; they simply identify the calling project making the request. Therefore, they should be kept secure and not embedded in publicly accessible client code to prevent unauthorized access to API resources.

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