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Notis

Never Hunt for Webhook IP Ranges Again

Setting up firewall rules for Buildkite webhooks? Get the exact IP ranges you need automatically.

Trigger

Issue Created Trigger

Triggered when a new issue is created.

Action

Get Meta

Tool to retrieve metadata about the buildkite api. use when you need to fetch webhook ip addresses for firewall or security configurations.

Why this helps

Firewall team asks for Buildkite webhook IPs and you have to dig through documentation or make API calls to find them

  • Webhook IPs fetched and documented automatically
  • Firewall rules can be created without back-and-forth
  • Setup time cut significantly
  • Security reviews include accurate ranges

Setup

Build it in a few focused steps.

  • 1Connect Linear and Buildkite to Notis
  • 2Create automation: When an issue is created mentioning firewall or webhook IP configuration, fetch the Buildkite webhook metadata and post the IP ranges
  • 3Select Issue Created as the trigger
  • 4Set your notification channel
  • 5Test by creating a firewall/webhook issue and confirm IPs are fetched and documented

Questions about this workflow

Are webhook IPs stable or do they change?

Buildkite maintains stable webhook IP ranges. This automation ensures you always have the current documented list.

Can I whitelist these automatically in my firewall?

This automation fetches the IPs and documents them. Automatic whitelisting depends on your firewall provider's API capabilities.

What format are the IPs returned in?

CIDR blocks and individual IPs, formatted and ready for your security team to use

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Linear to Buildkite. A trigger fires from one place; an action lands in another.

Linear triggers

Buildkite actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Get Current Access Token

Tool to retrieve the authenticated api access token details. use when you need to confirm the validity and scopes of the current api token.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Get Meta

Tool to retrieve metadata about the buildkite api. use when you need to fetch webhook ip addresses for firewall or security configurations.

ActionInstant

Comment Received Trigger

Triggered when a comment is received.

TriggerInstant

List Pipeline Agents

Tool to list connected agents for an organization. use after confirming the organization slug. supports optional filtering and pagination.

ActionInstant

Issue Created Trigger

Triggered when a new issue is created.

TriggerInstant

Issue Updated Trigger

Triggered when an issue is updated. For example labels are changed, issue status is changed, etc.

TriggerInstant

Private Team Comment Created

Fires when a new comment is posted on an issue in a private Linear team (polled with the connected user's token).

TriggerPolling

Private Team Issue Created

Fires when a new issue appears in a private Linear team (polled with the connected user's token).

TriggerPolling

Private Team Issue Properties Updated

Fires when properties on an issue change in a private Linear team (polled with the connected user's token).

TriggerPolling

Connect any two apps with Notis in the middle.

Linear and Buildkite, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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