E2B Sandbox Events and Webhooks API

openapi: 3.1.0
info:
  title: E2B Sandbox Events and Webhooks API
  version: 0.1.0
  description: |
    Documented REST surface for E2B sandbox lifecycle events and webhook
    subscriptions. Modeled directly from the public documentation at
    https://e2b.dev/docs/sandbox/lifecycle-events-webhooks and
    https://e2b.dev/docs/sandbox/lifecycle-events-api.

    This spec covers two surfaces:
      1. Polling REST events at /events/sandboxes (team-wide) and
         /events/sandboxes/{sandboxID} (single sandbox).
      2. Webhook subscription management at /events/webhooks, plus the
         signed POST payload that E2B delivers to subscribed URLs.

    Webhook deliveries include the headers e2b-webhook-id,
    e2b-delivery-id, e2b-signature-version, and e2b-signature. The
    signature is a base64-encoded SHA-256 of the concatenation of the
    subscription secret and the raw payload body, with trailing "="
    padding stripped.

servers:
  - url: https://api.e2b.app

security:
  - ApiKeyAuth: []

components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key

  parameters:
    sandboxID:
      name: sandboxID
      in: path
      required: true
      schema:
        type: string
    webhookID:
      name: webhookID
      in: path
      required: true
      schema:
        type: string

  schemas:
    SandboxLifecycleEventType:
      type: string
      description: Documented sandbox lifecycle event types.
      enum:
        - sandbox.lifecycle.created
        - sandbox.lifecycle.updated
        - sandbox.lifecycle.killed
        - sandbox.lifecycle.paused
        - sandbox.lifecycle.resumed
        - sandbox.lifecycle.checkpointed

    SandboxExecution:
      type: object
      description: |
        Execution metrics included on terminal events such as
        sandbox.lifecycle.killed and sandbox.lifecycle.paused.
      properties:
        started_at:
          type: string
          format: date-time
        vcpu_count:
          type: integer
        memory_mb:
          type: integer
        execution_time:
          type: integer
          description: Execution duration in milliseconds.

    SandboxEventData:
      type: object
      description: |
        Event-specific payload. May be null on events that have no
        additional context. For sandbox.lifecycle.updated the payload
        may include set_timeout. For sandbox.lifecycle.killed and
        sandbox.lifecycle.paused the payload includes execution
        details.
      properties:
        sandbox_metadata:
          type: object
          additionalProperties:
            type: string
        execution:
          $ref: '#/components/schemas/SandboxExecution'
        set_timeout:
          type: integer
          description: New timeout in seconds for sandbox.lifecycle.updated.
      additionalProperties: true

    SandboxEvent:
      type: object
      required:
        - id
        - version
        - type
        - timestamp
        - sandbox_id
        - sandbox_team_id
      properties:
        id:
          type: string
        version:
          type: string
          example: v2
        type:
          $ref: '#/components/schemas/SandboxLifecycleEventType'
        timestamp:
          type: string
          format: date-time
        event_category:
          type: string
          example: lifecycle
        event_label:
          type: string
        event_data:
          $ref: '#/components/schemas/SandboxEventData'
        sandbox_id:
          type: string
        sandbox_execution_id:
          type: string
        sandbox_template_id:
          type: string
        sandbox_build_id:
          type: string
        sandbox_team_id:
          type: string

    SandboxEventsResponse:
      type: object
      properties:
        events:
          type: array
          items:
            $ref: '#/components/schemas/SandboxEvent'

    WebhookCreateRequest:
      type: object
      required:
        - name
        - url
        - events
      properties:
        name:
          type: string
        url:
          type: string
          format: uri
        enabled:
          type: boolean
          default: true
        events:
          type: array
          items:
            $ref: '#/components/schemas/SandboxLifecycleEventType'
        signatureSecret:
          type: string
          description: Shared secret used to sign delivery payloads.

    WebhookUpdateRequest:
      type: object
      properties:
        url:
          type: string
          format: uri
        enabled:
          type: boolean
        events:
          type: array
          items:
            $ref: '#/components/schemas/SandboxLifecycleEventType'

    Webhook:
      type: object
      required:
        - id
        - teamId
        - name
        - url
        - events
      properties:
        id:
          type: string
        teamId:
          type: string
        name:
          type: string
        createdAt:
          type: string
          format: date-time
        enabled:
          type: boolean
        url:
          type: string
          format: uri
        events:
          type: array
          items:
            $ref: '#/components/schemas/SandboxLifecycleEventType'

paths:
  /events/sandboxes:
    get:
      summary: List team sandbox lifecycle events
      description: |
        Returns sandbox lifecycle events across the entire team. Supports
        pagination via offset/limit and filtering by event type.
      tags: [events]
      parameters:
        - in: query
          name: offset
          schema:
            type: integer
            default: 0
        - in: query
          name: limit
          schema:
            type: integer
            default: 10
            maximum: 100
        - in: query
          name: orderAsc
          schema:
            type: boolean
        - in: query
          name: types
          description: Filter by event type. Repeatable.
          schema:
            type: array
            items:
              $ref: '#/components/schemas/SandboxLifecycleEventType'
          style: form
          explode: true
      responses:
        '200':
          description: Team sandbox events
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SandboxEventsResponse'

  /events/sandboxes/{sandboxID}:
    get:
      summary: List events for a single sandbox
      tags: [events]
      parameters:
        - $ref: '#/components/parameters/sandboxID'
        - in: query
          name: offset
          schema:
            type: integer
            default: 0
        - in: query
          name: limit
          schema:
            type: integer
            default: 10
            maximum: 100
        - in: query
          name: orderAsc
          schema:
            type: boolean
        - in: query
          name: types
          schema:
            type: array
            items:
              $ref: '#/components/schemas/SandboxLifecycleEventType'
          style: form
          explode: true
      responses:
        '200':
          description: Sandbox events
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SandboxEventsResponse'

  /events/webhooks:
    get:
      summary: List webhook subscriptions
      tags: [webhooks]
      responses:
        '200':
          description: Registered webhooks
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Webhook'
    post:
      summary: Register a webhook subscription
      tags: [webhooks]
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WebhookCreateRequest'
      responses:
        '201':
          description: Webhook created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Webhook'

  /events/webhooks/{webhookID}:
    get:
      summary: Get a webhook subscription
      tags: [webhooks]
      parameters:
        - $ref: '#/components/parameters/webhookID'
      responses:
        '200':
          description: Webhook configuration
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Webhook'
    patch:
      summary: Update a webhook subscription
      tags: [webhooks]
      parameters:
        - $ref: '#/components/parameters/webhookID'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WebhookUpdateRequest'
      responses:
        '200':
          description: Updated webhook
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Webhook'
    delete:
      summary: Delete a webhook subscription
      tags: [webhooks]
      parameters:
        - $ref: '#/components/parameters/webhookID'
      responses:
        '200':
          description: Webhook deleted

webhooks:
  sandboxLifecycle:
    post:
      summary: Sandbox lifecycle event delivery
      description: |
        Delivered to the registered subscription URL when a matching
        sandbox lifecycle event occurs. Signed with SHA-256 over
        signatureSecret + raw body, base64-encoded with trailing "="
        padding stripped, and sent in the e2b-signature header.
      parameters:
        - in: header
          name: e2b-webhook-id
          required: true
          schema:
            type: string
        - in: header
          name: e2b-delivery-id
          required: true
          schema:
            type: string
        - in: header
          name: e2b-signature-version
          required: true
          schema:
            type: string
            example: v1
        - in: header
          name: e2b-signature
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SandboxEvent'
      responses:
        '2XX':
          description: Subscriber accepted the event.