Hatchet API

The Hatchet REST API is the control plane for the Hatchet engine. It exposes operations for tasks, workflow runs, durable tasks, events, filters (CEL-based event routing), webhooks/webhook workers, tenants, users, workers, scheduled and cron workflows, alerting, rate limits, API tokens, observability (logs, traces, metrics), feature flags, and engine metadata. The contract is OpenAPI 3.1 and ships in-tree at hatchet-dev/hatchet under api-contracts/openapi. Stable endpoints are namespaced under /api/v1/stable; legacy endpoints remain under /api/v1. Authentication is bearer token or session cookie.

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OpenAPI Specification

hatchet-openapi.yml Raw ↑
openapi: 3.1.0
info:
  version: 1.0.0
  title: Hatchet API
  description: The Hatchet API
servers:
- url: ''
security:
- bearerAuth: []
- cookieAuth: []
paths:
  /api/v1/stable/tasks/{task}:
    get:
      x-resources:
      - tenant
      - task
      description: Get a task by id
      operationId: v1-task:get
      parameters:
      - description: The task id
        in: path
        name: task
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: The attempt number
        in: query
        name: attempt
        required: false
        schema:
          type: integer
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1TaskSummary'
          description: Successfully retrieved the task
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: The task was not found
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: Get a Task
      tags:
      - Task
  /api/v1/stable/tasks/{task}/task-events:
    get:
      x-resources:
      - tenant
      - task
      description: List events for a task
      operationId: v1-task-event:list
      parameters:
      - description: The task id
        in: path
        name: task
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: The number to skip
        in: query
        name: offset
        required: false
        schema:
          type: integer
          format: int64
      - description: The number to limit by
        in: query
        name: limit
        required: false
        schema:
          type: integer
          format: int64
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1TaskEventList'
          description: Successfully retrieved the events
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: The task was not found
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: List Events for a Task
      tags:
      - Task
  /api/v1/stable/tasks/{task}/logs:
    get:
      x-resources:
      - tenant
      - task
      description: Lists log lines for a task
      operationId: v1-log-line:list
      parameters:
      - description: The task id
        in: path
        name: task
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: The number to limit by
        in: query
        name: limit
        required: false
        schema:
          type: integer
          format: int64
      - description: The start time to get logs for
        in: query
        name: since
        required: false
        schema:
          type: string
          format: date-time
      - description: The end time to get logs for
        in: query
        name: until
        required: false
        schema:
          type: string
          format: date-time
      - description: A full-text search query to filter for
        in: query
        name: search
        required: false
        schema:
          type: string
      - description: The log level(s) to include
        in: query
        name: levels
        required: false
        schema:
          type: array
          items:
            $ref: '#/components/schemas/V1LogLineLevel'
      - description: The direction to order by
        in: query
        name: order_by_direction
        required: false
        schema:
          $ref: '#/components/schemas/V1LogLineOrderByDirection'
      - description: The attempt number to filter for
        in: query
        name: attempt
        required: false
        schema:
          type: integer
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1LogLineList'
          description: Successfully listed the events
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
      summary: List Log Lines
      tags:
      - Log
  /api/v1/stable/tenants/{tenant}/tasks/cancel:
    post:
      x-resources:
      - tenant
      description: Cancel tasks
      operationId: v1-task:cancel
      parameters:
      - description: The tenant id
        in: path
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/V1CancelTaskRequest'
        description: The tasks to cancel
        required: true
      responses:
        '200':
          description: Successfully cancelled the tasks
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1CancelledTasks'
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: The task was not found
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: Cancel Tasks
      tags:
      - Task
  /api/v1/stable/tenants/{tenant}/logs:
    get:
      x-resources:
      - tenant
      description: Lists log lines for a tenant
      operationId: v1-tenant-log-line:list
      parameters:
      - description: The tenant id
        in: path
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: The number to limit by
        in: query
        name: limit
        required: false
        schema:
          type: integer
          format: int64
      - description: The start time to get logs for
        in: query
        name: since
        required: false
        schema:
          type: string
          format: date-time
      - description: The end time to get logs for
        in: query
        name: until
        required: false
        schema:
          type: string
          format: date-time
      - description: A full-text search query to filter for
        in: query
        name: search
        required: false
        schema:
          type: string
      - description: The log level(s) to include
        in: query
        name: levels
        required: false
        schema:
          type: array
          items:
            $ref: '#/components/schemas/V1LogLineLevel'
      - description: The direction to order by
        in: query
        name: order_by_direction
        required: false
        schema:
          $ref: '#/components/schemas/V1LogLineOrderByDirection'
      - description: The attempt number to filter for
        in: query
        name: attempt
        required: false
        schema:
          type: integer
      - description: The task external ID(s) to filter by
        in: query
        name: taskExternalIds
        required: false
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      - description: The workflow id(s) to filter for
        in: query
        name: workflow_ids
        required: false
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      - description: The step id(s) to filter for
        in: query
        name: step_ids
        required: false
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1LogLineList'
          description: Successfully listed the logs
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
      summary: List Log Lines
      tags:
      - Log
  /api/v1/stable/tenants/{tenant}/log-point-metrics:
    get:
      x-resources:
      - tenant
      description: Get a minute by minute breakdown of log metrics for a tenant
      operationId: v1-tenant-log-line:get:point-metrics
      parameters:
      - description: The tenant id
        in: path
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: The start time to get logs for
        in: query
        name: since
        required: false
        schema:
          type: string
          format: date-time
      - description: The end time to get logs for
        in: query
        name: until
        required: false
        schema:
          type: string
          format: date-time
      - description: A full-text search query to filter for
        in: query
        name: search
        required: false
        schema:
          type: string
      - description: The log level(s) to include
        in: query
        name: levels
        required: false
        schema:
          type: array
          items:
            $ref: '#/components/schemas/V1LogLineLevel'
      - description: The task external ID(s) to filter by
        in: query
        name: taskExternalIds
        required: false
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      - description: The workflow id(s) to filter for
        in: query
        name: workflow_ids
        required: false
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      - description: The step id(s) to filter for
        in: query
        name: step_ids
        required: false
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1LogsPointMetrics'
          description: Successfully retrieved the log point metrics
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: Get Log Point Metrics
      tags:
      - Log
  /api/v1/stable/tenants/{tenant}/tasks/replay:
    post:
      x-resources:
      - tenant
      description: Replay tasks
      operationId: v1-task:replay
      parameters:
      - description: The tenant id
        in: path
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/V1ReplayTaskRequest'
        description: The tasks to replay
        required: true
      responses:
        '200':
          description: Successfully replayed the tasks
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1ReplayedTasks'
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: The task was not found
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: Replay Tasks
      tags:
      - Task
  /api/v1/stable/tasks/{task}/restore:
    post:
      x-resources:
      - tenant
      - task
      description: Restore an evicted durable task
      operationId: v1-task:restore
      parameters:
      - description: The task id
        in: path
        name: task
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1RestoreTaskResponse'
          description: Successfully restored the task
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: The task was not found
      summary: Restore a Task
      tags:
      - Task
  /api/v1/stable/dags/tasks:
    get:
      description: Lists all tasks that belong a specific list of dags
      operationId: v1-dag:list:tasks
      parameters:
      - description: The external id of the DAG
        in: query
        name: dag_ids
        required: true
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      - description: The tenant id
        in: query
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      responses:
        '200':
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/V1DagChildren'
                description: The list of tasks
          description: Successfully listed the tasks
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: List Tasks
      tags:
      - Task
  /api/v1/stable/tenants/{tenant}/workflow-runs:
    get:
      x-resources:
      - tenant
      description: Lists workflow runs for a tenant.
      operationId: v1-workflow-run:list
      parameters:
      - description: The tenant id
        in: path
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: The number to skip
        in: query
        name: offset
        required: false
        schema:
          type: integer
          format: int64
      - description: The number to limit by
        in: query
        name: limit
        required: false
        schema:
          type: integer
          format: int64
      - description: A list of statuses to filter by
        in: query
        name: statuses
        required: false
        schema:
          type: array
          items:
            $ref: '#/components/schemas/V1TaskStatus'
      - description: The earliest date to filter by
        in: query
        name: since
        required: true
        schema:
          type: string
          format: date-time
      - description: The latest date to filter by
        in: query
        name: until
        required: false
        schema:
          type: string
          format: date-time
      - description: Additional metadata k-v pairs to filter by
        in: query
        name: additional_metadata
        required: false
        schema:
          type: array
          items:
            type: string
      - description: The workflow ids to find runs for
        in: query
        name: workflow_ids
        required: false
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      - description: The worker id to filter by
        in: query
        name: worker_id
        required: false
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: Whether to include DAGs or only to include tasks
        in: query
        name: only_tasks
        required: true
        schema:
          type: boolean
      - description: The parent task external id to filter by
        in: query
        name: parent_task_external_id
        required: false
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: The external id of the event that triggered the workflow run
        in: query
        name: triggering_event_external_id
        required: false
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: A flag for whether or not to include the input and output payloads in the response. Defaults to `true` if unset.
        in: query
        name: include_payloads
        required: false
        schema:
          type: boolean
      - description: Filter within the RUNNING status bucket. ALL returns both on-worker and evicted tasks, ON_WORKER returns only tasks running on a worker, EVICTED returns only evicted tasks. Defaults to ALL.
        in: query
        name: running_filter
        required: false
        schema:
          $ref: '#/components/schemas/V1RunningFilter'
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1TaskSummaryList'
          description: Successfully listed the tasks
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: List Workflow Runs
      tags:
      - Workflow Runs
  /api/v1/stable/tenants/{tenant}/workflow-runs/display-names:
    get:
      x-resources:
      - tenant
      description: Lists displayable names of workflow runs for a tenant
      operationId: v1-workflow-run:display-names:list
      parameters:
      - description: The tenant id
        in: path
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: The external ids of the workflow runs to get display names for
        in: query
        name: external_ids
        required: true
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1WorkflowRunDisplayNameList'
          description: Successfully listed the tasks
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: List Workflow Runs
      tags:
      - Workflow Runs
  /api/v1/stable/tenants/{tenant}/workflow-runs/external-ids:
    get:
      x-resources:
      - tenant
      description: Lists external ids for workflow runs matching filters
      operationId: v1-workflow-run:external-ids:list
      parameters:
      - description: The tenant id
        in: path
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: A list of statuses to filter by
        in: query
        name: statuses
        required: false
        schema:
          type: array
          items:
            $ref: '#/components/schemas/V1TaskStatus'
      - description: The earliest date to filter by
        in: query
        name: since
        required: true
        schema:
          type: string
          format: date-time
      - description: The latest date to filter by
        in: query
        name: until
        required: false
        schema:
          type: string
          format: date-time
      - description: Additional metadata k-v pairs to filter by
        in: query
        name: additional_metadata
        required: false
        schema:
          type: array
          items:
            type: string
      - description: The workflow ids to find runs for
        in: query
        name: workflow_ids
        required: false
        schema:
          type: array
          items:
            type: string
            format: uuid
            minLength: 36
            maxLength: 36
      - description: Filter within the RUNNING status bucket. ALL returns both on-worker and evicted tasks, ON_WORKER returns only tasks running on a worker, EVICTED returns only evicted tasks. Defaults to ALL.
        in: query
        name: running_filter
        required: false
        schema:
          $ref: '#/components/schemas/V1RunningFilter'
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1WorkflowRunExternalIdList'
          description: Successfully listed the tasks
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: List Workflow Run External Ids
      tags:
      - Workflow Runs
  /api/v1/stable/tenants/{tenant}/workflow-runs/trigger:
    post:
      x-resources:
      - tenant
      description: Trigger a new workflow run
      operationId: v1-workflow-run:create
      parameters:
      - description: The tenant id
        in: path
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/V1TriggerWorkflowRunRequest'
        description: The workflow run to create
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1WorkflowRunDetails'
          description: Successfully created the workflow run
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
      summary: Create Workflow Run
      tags:
      - Workflow Runs
  /api/v1/stable/tenants/{tenant}/durable-tasks/branch:
    post:
      x-resources:
      - tenant
      description: Branch a durable task from a specific node, creating a new branch and re-processing its matches.
      operationId: v1-durable-task:branch
      parameters:
      - description: The tenant id
        in: path
        name: tenant
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/V1BranchDurableTaskRequest'
        description: The branch request
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1BranchDurableTaskResponse'
          description: Successfully branch the durable task
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
      summary: Branch Durable Task
      tags:
      - Workflow Runs
  /api/v1/stable/durable-tasks/{durable-task}:
    get:
      x-resources:
      - durable-task
      description: Lists all event log entries for a durable task.
      operationId: v1-durable-task:event-log:list
      parameters:
      - description: The durable task external id
        in: path
        name: durable-task
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      - description: The number of event log entries to skip
        in: query
        name: offset
        required: false
        schema:
          type: integer
          format: int64
      - description: The number of event log entries to limit by
        in: query
        name: limit
        required: false
        schema:
          type: integer
          format: int64
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1DurableEventLogList'
          description: Successfully listed event log entries
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not found
      summary: List Durable Event Log
      tags:
      - Durable Tasks
  /api/v1/stable/workflow-runs/{v1-workflow-run}:
    get:
      x-resources:
      - tenant
      - v1-workflow-run
      description: Get a workflow run and its metadata to display on the "detail" page
      operationId: v1-workflow-run:get
      parameters:
      - description: The workflow run id to get
        in: path
        name: v1-workflow-run
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1WorkflowRunDetails'
          description: Successfully listed the tasks
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: A malformed or bad request
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Forbidden
        '501':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIErrors'
          description: Not implemented
      summary: List Tasks
      tags:
      - Workflow Runs
  /api/v1/stable/workflow-runs/{v1-workflow-run}/status:
    get:
      x-resources:
      - tenant
      - v1-workflow-run
      description: Get the status of a workflow run.
      operationId: v1-workflow-run:get-status
      parameters:
      - description: The workflow run id to get the status for
        in: path
        name: v1-workflow-run
        required: true
        schema:
          type: string
          format: uuid
          minLength: 36
          maxLength: 36
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1TaskStatus'
          description: Successfully listed the tasks
        '400':
          content:
            application/json:
              schema:
                $ref: '#

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