Reference · Tools

Linear Trigger

Starts workflow when Linear events occur via webhooks

Webhook trigger Development v1

The Linear Trigger fires when Linear reports activity on the resources you subscribe to — issues, comments, issue labels, comment reactions, cycles and projects — scoped to a team. A typical build is posting to a channel whenever an issue is moved into the current cycle.

Node type
Webhook trigger
Parameters
4
Outputs
Output
Credentials
Linear

Linear Trigger

Triggers on Linear events such as issue changes, comments, cycles, and project updates

Overview

Receives webhook notifications from Linear when project management events occur, such as issue creation, comment updates, label changes, cycle updates, and project modifications. Linear sends the full event payload as JSON to the webhook URL. The trigger supports filtering by team and by resource type (Issue, Comment, Issue Label, Comment Reaction, Cycle, Project). Useful for automating issue triage, syncing project data, notifying teams of changes, and building custom workflows triggered by Linear activity.

Category: Development
Tool Name: linear_trigger
Version: 1

Appearance: Icon: si-linear | Color: #5e6ad2

Node Type

Trigger — webhook (receives incoming HTTP callbacks)

Input / Output

DirectionPort(s)
InputNone (trigger node)
OutputOutput

Credentials

This tool requires Linear credentials. See the Credentials Guide for setup instructions.

Parameters

ParameterTypeRequiredDefaultDescription
AuthenticationoptionsNoapiTokenAuthentication method to use for Linear API calls.
Options: apiToken (API Token), oAuth2 (OAuth2)
Team IDstringNoThe Linear Team ID to scope webhook events to. Enter the team UUID directly — find it in Linear under Settings > Teams.
Listen to ResourcesmultiOptionsYes[]Which Linear resource types to listen for. Select one or more resource types whose events will trigger the workflow.
Options: reaction (Comment Reaction), cycle (Cycle), issue (Issue), comment (Issue Comment), issueLabel (Issue Label), project (Project)

Output Data

Each delivery produces one output item carrying the full Linear payload plus three metadata fields:

{
  "_trigger": "linear_webhook",
  "_timestamp": "2026-01-01T00:00:00.000Z",
  "_webhookEvent": "Issue.create",
  "action": "create",
  "type": "Issue",
  "createdAt": "2026-01-01T00:00:00.000Z",
  "organizationId": "",
  "url": "",
  "data": {
    "id": "test-issue-id",
    "identifier": "TEST-1",
    "title": "Test Issue",
    "priority": 3,
    "state": { "id": "", "name": "Todo" },
    "assignee": { "id": "", "name": "" },
    "creator": { "id": "", "name": "" },
    "team": { "id": "", "name": "" },
    "description": "",
    "createdAt": "2026-01-01T00:00:00.000Z",
    "updatedAt": "2026-01-01T00:00:00.000Z"
  },
  "updatedFrom": null
}
  • _trigger — always linear_webhook.
  • _timestamp — ISO 8601 timestamp of when the delivery arrived.
  • _webhookEvent — a combined label of the form {type}.{action}, for example Issue.create or Comment.update.
  • action — what happened: create, update or remove.
  • type — the Linear resource type that fired, for example Issue, Comment, Cycle or Project.
  • data — the resource itself. Its fields depend on the type; an issue carries id, identifier, title, priority, state, assignee, creator, team, description, createdAt and updatedAt.
  • updatedFrom — on update actions, the previous values of the fields that changed. null otherwise.
  • url — the Linear web URL for the resource, and organizationId identifies the workspace.

Reference values downstream by expression, for example {{ $json.data.identifier }} or {{ $json.data.state.name }}.

Usage Examples

  • Start a workflow when a new issue is created in Linear
  • Trigger a notification when an issue comment is added
  • Automate status updates when a Linear cycle is modified
  • Sync project changes from Linear to an external system

Example Configuration

Watch issue events for one team:

{
  "type": "linear_trigger",
  "parameters": {
    "authentication": "apiToken",
    "teamId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "resources": ["issue"]
  }
}

Watch issues, comments and projects together:

{
  "type": "linear_trigger",
  "parameters": {
    "authentication": "oAuth2",
    "teamId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "resources": ["issue", "comment", "project"]
  }
}

Build a communication hub from comments and reactions:

{
  "type": "linear_trigger",
  "parameters": {
    "authentication": "apiToken",
    "teamId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "resources": ["comment", "reaction"]
  }
}

Track planning activity across cycles and projects:

{
  "type": "linear_trigger",
  "parameters": {
    "authentication": "apiToken",
    "teamId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "resources": ["cycle", "project", "issueLabel"]
  }
}

Trigger Behavior

  • Activation: When the workflow is activated, a webhook endpoint is registered with the service.
  • Deactivation: The webhook is automatically unregistered when the workflow is deactivated.
  • Payload: The incoming webhook payload is parsed and output as workflow items.
  • Verification: Supports signature verification where applicable.

Tips

Entry point that fires when Linear sends a webhook for subscribed resource events. Configure the team to scope events to, and select which resource types to listen for (Issue, Comment, Issue Label, Comment Reaction, Cycle, Project). The trigger requires an API key with Admin scope to register webhooks. Linear delivers the full event payload including action type and resource data.

Frequently asked questions

What permissions does the API key need?

Admin scope. The trigger registers webhooks with Linear, which requires an admin-scoped key — a standard key will fail to set the subscription up.

Which resources can it watch?

Issue, Comment, Issue Label, Comment Reaction, Cycle and Project, selected when configuring the trigger.

Can I limit it to one team?

Yes — the trigger is configured with the team to scope events to, so other teams' activity does not start your workflow.

What does the payload contain?

The full Linear event payload including the action type and the resource data, so you can branch on what happened without a follow-up query.

Build with the Linear Trigger node

Drop it into a workflow, wire it to an agent, or call it on a schedule. You'll need Linear credentials first.

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