Connect Pydantic Logfire with API Key – StackOne Hub

Sign in to the Logfire console for your data region.

• EU Region: Logfire EU console
• US Region: Logfire US console

Click your organization name in the top-left corner of the page header to open the organization menu, then select Org settings. In the left settings sidebar under your organization, click API keys.

On the API keys page, click + New API key in the top-right corner to open the New API key form.

Enter a Name (and an optional Description), then configure the key.

• Key type: choose Organization so the key works across every project in the organization (recommended). Choosing Project instead ties the key to a single project selected in the Project dropdown and limits it to that project.
• Permissions: pick what the key can do. Click Select all, or enable the grouped categories the connector needs — Read (view dashboards, alerts, datasets, variables, and API keys), Manage (create and modify dashboards, alerts, datasets, variables, tokens, and API keys), and Org administration (manage invitations, API keys, trust policies, SCIM, audit logs, and billing).

For a more restricted key, expand Advanced and tick individual scopes under Organization Scopes and Project Scopes instead of whole categories. To cover every connector action, enable at least these scopes.

• View projects and their settings and Rename or delete projects and change their settings (project read/write).
• Ability to create projects within the organization (organization create project).
• Read notification channels across the organization and Create or modify notification channels across the organization (channel read/write).
• Read dashboards within a project and Create or modify dashboards within a project.
• Read alerts and SLOs within a project and Create or modify alerts and SLOs within a project.
• Read managed variables and prompts within a project and Create or modify managed variables and prompts within a project.

Set Expiration to No expiration (or choose a duration that suits your security policy), then click Create API key.

The API key is shown only once after creation. Copy it immediately and store it securely, then paste it into the API Key field in StackOne Hub.

• The key starts with pylf_v2_eu_ (EU) or pylf_v2_us_ (US).
• If you lose the key you must create a new one.

Open the project, then click Project settings in the breadcrumb and select API keys from the project settings sidebar. Click + New API key to open the form.

The Project field is fixed to the current project (to create keys for other projects or the whole organization, use the organization API keys page link). Under Permissions, enable the scopes the key needs — Send telemetry, Read, and Manage — or expand Advanced for individual scopes. Set Expiration, click Create API key, and copy the key.

If this key is for the variable-type actions, paste it into the optional Project API Key field in StackOne Hub and leave the main API Key field set to your organization key — the two are used side by side. Under Permissions, the key needs the Variables scopes: project:read_variables to list and read variable types, plus project:write_variables to create them. Leave the field blank if you do not use those actions.

Check the address bar while signed in to the Logfire console to identify your region, then paste the matching base URL into the API Region URL field in StackOne Hub.

• If the console URL is logfire-eu.pydantic.dev, you are on the EU region. Enter https://api-eu.pydantic.dev
• If the console URL is logfire-us.pydantic.dev, you are on the US region. Enter https://api-us.pydantic.dev
• Format: https://{region-host}
• Example: https://api-eu.pydantic.dev