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View current configuration

To view all available settings and their active values from the command line, run:

prefect config view --show-defaults

These settings are type-validated and you may verify your setup at any time with:

prefect config validate

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Configure settings for the active profile

To update a setting for the active profile, run:

prefect config set <setting>=<value>

For example, to set the PREFECT_API_URL setting to http://127.0.0.1:4200/api, run:

prefect config set PREFECT_API_URL=http://127.0.0.1:4200/api

To restore the default value for a setting, run:

prefect config unset <setting>

For example, to restore the default value for the PREFECT_API_URL setting, run:

prefect config unset PREFECT_API_URL

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Create a new profile

To create a new profile, run:

prefect profile create <profile>

To switch to a new profile, run:

prefect profile use <profile>

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Configure settings for a project

To configure settings for a project, create a prefect.toml or .env file in the project directory and add the settings with the values you want to use.

For example, to configure the PREFECT_API_URL setting to http://127.0.0.1:4200/api, create a .env file with the following content:

PREFECT_API_URL=http://127.0.0.1:4200/api

To configure the PREFECT_API_URL setting to http://127.0.0.1:4200/api in a prefect.toml file, create a prefect.toml file with the following content:

api.url = "http://127.0.0.1:4200/api"

Refer to the setting concept guide for more information on how to configure settings and the settings reference guide for more information on the available settings.

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Configure temporary settings for a process

To configure temporary settings for a process, set an environment variable with the name matching the setting you want to configure.

For example, to configure the PREFECT_API_URL setting to http://127.0.0.1:4200/api for a process, set the PREFECT_API_URL environment variable to http://127.0.0.1:4200/api.

export PREFECT_API_URL=http://127.0.0.1:4200/api

You can use this to run a command with the temporary setting:

PREFECT_LOGGING_LEVEL=DEBUG python my_script.py