# Global parameters
Global parameters let you define common parameters that can be applied across your entire project. These parameters can be included automatically in all endpoint requests, boosting both the efficiency and consistency of your API testing.
## How to Configure Global Parameters
1. Navigate to "Environment Management" found at the top right of the page to access the global parameter settings.
2. Choose where the parameter should be used (Headers, Cookies, Query, or Body).
3. Fill in the parameter details(parameter name, type, default value, etc.).
4. Enable or disable the parameter using the toggle switch.
5. Save your configuration settings.
## Explanations of Parameter Configuration
### Global Parameter Types
Global parameters can be used in:
1. Headers (Request Header)
2. Cookies (Cookie Information)
3. Query (URL Query Parameter)
4. Body (Request Body Parameter)
### Parameter Property
- **Name:** The name that identifies the parameter in requests.
- **Type:** The data type, such as string or number.
- **Default Value:** A suggested preset value, which is often in the format of {{variable}}.
- **Default:** A toggle to control whether the parameter is effective.
- **Description:** An explanation of what the parameter is for.
### Special Mark
The `*`(asterisk) mark indicates that the parameter is required.
## Example Usage
Let’s take the`API_KEY`shown in the image above as an example:
- **Location:** Header (Request Header)
- **Name:** Authorization
- **Type:** string
- **Default Value:** {{API_KEY}}, sourced from environment variables
- **Purpose:** API Key for DeepSeek API
After sending a request, you can view the parameter details in the response console under`Actual Request`.
## Important Notes
1. Global parameters have lower priority than parameters defined at the endpoint level.
2. Always check for duplicate names when adding new parameters to avoid conflicts.
3. Make sure each parameter type aligns with how it will be used to ensure effectiveness.
4. For sensitive information, it’s best to use [environment variables](https://apidocs.apidog.io/584758m0.md) or other secure methods for parameter management.
## FAQs
Simply toggle the enable/disable switch on the right side of the parameter.
Global parameters are for fixed configurations that remain the same in all environments, while environment variables are used to manage configurations that may change across different environments.