Sendcloud Connections API

openapi: 3.1.0
info:
  title: Shipments Address Connections API
  version: 3.0.0
  description: The Shipments API allows you to create and announce, retrieve, and cancel outgoing shipments and their associated parcels within the Sendcloud platform.
  contact:
    name: Sendcloud API Support
    email: contact@sendcloud.com
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
servers:
- url: https://panel.sendcloud.sc/api/v3
  description: Sendcloud Production
tags:
- name: Connections
paths:
  /event-subscriptions/connections:
    post:
      summary: Create a connection
      description: Create a new connection to an external endpoint where event notifications will be delivered.
      tags:
      - Connections
      operationId: sc-public-v3-scp-post-create_connection
      security:
      - HTTPBasicAuth: []
      - OAuth2ClientCreds: []
      x-mint:
        href: /api/v3/event-subscriptions/create-a-connection
        content: "Create a new connection that defines an external endpoint for event delivery.\n\n**Webhook connections** require a `url` and optionally authentication configuration. Supported authentication types are `none`, `bearer`, `basic`, and `api_key`.\n\n**Klaviyo connections** require only the `type` field set to `klaviyo` with an empty `configuration` object. After creating the connection, use the [Start OAuth2 authorization](/api/v3/event-subscriptions/start-oauth2-authorization) endpoint to connect your Klaviyo account.\n\n<Info>\n  Webhook URLs must be publicly accessible and respond with a `2xx` status code to acknowledge event delivery.\n</Info>"
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/connection-create-request'
            examples:
              WebhookConnection:
                summary: Create a webhook connection with bearer auth
                value:
                  type: webhook
                  configuration:
                    url: https://example.com/webhooks/sendcloud
                    auth_type: bearer
                    auth_config:
                      token: my-secret-token
                    extra_headers:
                      X-Custom-Header: my-value
              WebhookConnectionNoAuth:
                summary: Create a webhook connection without auth
                value:
                  type: webhook
                  configuration:
                    url: https://example.com/webhooks/sendcloud
                    auth_type: none
              KlaviyoConnection:
                summary: Create a Klaviyo connection
                value:
                  type: klaviyo
                  configuration: {}
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema:
                description: Connection created
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/connection'
              examples:
                WebhookCreated:
                  summary: Webhook connection created
                  value:
                    data:
                      id: 1
                      type: webhook
                      configuration:
                        url: https://example.com/webhooks/sendcloud
                        auth_type: bearer
                        extra_headers:
                          X-Custom-Header: my-value
                      created_at: '2026-01-15T10:30:00Z'
                      updated_at: '2026-01-15T10:30:00Z'
                KlaviyoCreated:
                  summary: Klaviyo connection created
                  value:
                    data:
                      id: 2
                      type: klaviyo
                      configuration: {}
                      created_at: '2026-01-15T10:30:00Z'
                      updated_at: '2026-01-15T10:30:00Z'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/errors'
              examples:
                ValidationError:
                  summary: Validation error
                  value:
                    errors:
                    - detail: This field is required.
                      status: '400'
                      source:
                        pointer: /data/type
                      code: required
        '429':
          description: Throttled
    get:
      summary: List connections
      description: Retrieve all connections for the authenticated user's organization.
      tags:
      - Connections
      operationId: sc-public-v3-scp-get-list_connections
      security:
      - HTTPBasicAuth: []
      - OAuth2ClientCreds: []
      x-mint:
        href: /api/v3/event-subscriptions/list-connections
      parameters:
      - schema:
          type: string
          enum:
          - webhook
          - klaviyo
        in: query
        name: connection_type
        description: Filter by connection type.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                description: List of connections
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/connection'
                required:
                - data
              examples:
                ListConnections:
                  summary: List of connections
                  value:
                    data:
                    - id: 1
                      type: webhook
                      configuration:
                        url: https://example.com/webhooks/sendcloud
                        auth_type: bearer
                        extra_headers:
                          X-Custom-Header: my-value
                      created_at: '2026-01-15T10:30:00Z'
                      updated_at: '2026-01-15T10:30:00Z'
                    - id: 2
                      type: klaviyo
                      configuration: {}
                      created_at: '2026-01-16T09:00:00Z'
                      updated_at: '2026-01-16T09:00:00Z'
        '429':
          description: Throttled
  /event-subscriptions/connections/{id}:
    parameters:
    - schema:
        type: integer
      in: path
      name: id
      description: The id of the connection.
      required: true
    get:
      summary: Get a connection
      description: Retrieve a specific connection by its id.
      tags:
      - Connections
      operationId: sc-public-v3-scp-get-connection
      security:
      - HTTPBasicAuth: []
      - OAuth2ClientCreds: []
      x-mint:
        href: /api/v3/event-subscriptions/get-a-connection
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                description: Connection details
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/connection'
              examples:
                GetConnection:
                  summary: Get a webhook connection
                  value:
                    data:
                      id: 1
                      type: webhook
                      configuration:
                        url: https://example.com/webhooks/sendcloud
                        auth_type: bearer
                        extra_headers:
                          X-Custom-Header: my-value
                      created_at: '2026-01-15T10:30:00Z'
                      updated_at: '2026-01-15T10:30:00Z'
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/errors'
    patch:
      summary: Update a connection
      description: Update an existing connection by its id. Only the fields provided in the request body will be updated.
      tags:
      - Connections
      operationId: sc-public-v3-scp-patch-connection
      security:
      - HTTPBasicAuth: []
      - OAuth2ClientCreds: []
      x-mint:
        href: /api/v3/event-subscriptions/update-a-connection
        content: "Update the configuration of an existing connection.\n\nOnly the fields provided in the request body will be updated. For example, you can update just the webhook URL or authentication settings without changing other fields.\n\n<Warning>\n  Updating a connection's configuration may affect all subscriptions that use this connection.\n</Warning>"
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/connection-update-request'
            examples:
              UpdateWebhookUrl:
                summary: Update the webhook URL
                value:
                  configuration:
                    url: https://example.com/webhooks/sendcloud-v2
              UpdateAuth:
                summary: Update authentication settings
                value:
                  configuration:
                    auth_type: api_key
                    auth_config:
                      header_name: X-Api-Key
                      api_key: my-new-api-key
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                description: Updated connection
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/connection'
              examples:
                UpdatedConnection:
                  summary: Updated webhook connection
                  value:
                    data:
                      id: 1
                      type: webhook
                      configuration:
                        url: https://example.com/webhooks/sendcloud-v2
                        auth_type: api_key
                        extra_headers:
                          X-Custom-Header: my-value
                      created_at: '2026-01-15T10:30:00Z'
                      updated_at: '2026-01-20T14:00:00Z'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/errors'
              examples:
                ValidationError:
                  summary: Validation error
                  value:
                    errors:
                    - detail: Enter a valid URL.
                      status: '400'
                      source:
                        pointer: /data/configuration/url
                      code: invalid
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/errors'
    delete:
      summary: Delete a connection
      description: Delete a specific connection by its id. Any subscriptions associated with this connection will also be deleted.
      tags:
      - Connections
      operationId: sc-public-v3-scp-delete-connection
      security:
      - HTTPBasicAuth: []
      - OAuth2ClientCreds: []
      x-mint:
        href: /api/v3/event-subscriptions/delete-a-connection
        content: "Delete a connection and all its associated subscriptions.\n\n<Warning>\n  This action is irreversible. All subscriptions linked to this connection will be permanently deleted and event delivery will stop immediately.\n</Warning>"
      responses:
        '204':
          description: No Content
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/errors'
components:
  schemas:
    errors:
      title: Errors
      type: object
      description: A standardized format for errors in JSON:API responses.
      properties:
        errors:
          type:
          - array
          - object
          items:
            type: object
            allOf:
            - $ref: '#/components/schemas/ErrorObject'
            required:
            - status
            - code
            - detail
    connection-update-request:
      title: Update Connection request
      description: Request body for updating an existing connection. All fields are optional.
      type: object
      properties:
        type:
          type: string
          description: The type of connection.
          enum:
          - webhook
          - klaviyo
        configuration:
          type: object
          description: 'The configuration for the connection. The shape depends on the connection type.


            For `webhook` connections, see the webhook configuration fields.

            For `klaviyo` connections, configuration can be an empty object as credentials are managed via OAuth2.'
    connection:
      title: Connection
      description: A connection defines an external endpoint where event notifications are delivered.
      type: object
      properties:
        id:
          type: integer
          format: int64
          minimum: 1
          description: Unique identifier of the connection.
        type:
          type: string
          description: The type of connection.
          enum:
          - webhook
          - klaviyo
        configuration:
          type: object
          description: The configuration for the connection. The shape depends on the connection type.
        created_at:
          type: string
          format: date-time
          description: The date and time when the connection was created, in ISO 8601 format.
        updated_at:
          type: string
          format: date-time
          description: The date and time when the connection was last updated, in ISO 8601 format.
    connection-create-request:
      title: Create Connection request
      description: Request body for creating a new connection.
      type: object
      required:
      - type
      - configuration
      properties:
        type:
          type: string
          description: The type of connection.
          enum:
          - webhook
          - klaviyo
        configuration:
          type: object
          description: 'The configuration for the connection. The shape depends on the connection type.


            For `webhook` connections, see the webhook configuration fields.

            For `klaviyo` connections, configuration can be an empty object as credentials are managed via OAuth2.'
    ErrorObject:
      title: Error
      type: object
      description: Error in a JSON:API error format
      properties:
        id:
          type: string
          description: A unique identifier for the error.
        links:
          type: object
          description: A set of hyperlinks that provide additional information about the error.
          properties:
            about:
              type: string
              description: A URL that provides additional information about the error.
        status:
          type: string
          format: int32
          description: The HTTP status code of the error.
          minLength: 1
        code:
          type: string
          description: A unique error code for the error, in snake case format.
          minLength: 1
          enum:
          - unknown_field
          - invalid
          - forbidden
          - invalid_choice
          - min_value
          - 'null'
          - not_found
          - required
          - not_a_list
          - non_field_errors
          - authentication_failed
          - validation_error
          - parcel_announcement_error
        title:
          type: string
          description: A short, human-readable summary of the error.
          minLength: 1
        detail:
          type: string
          description: A human-readable explanation of the error.
          minLength: 1
        source:
          type: object
          description: An object that identifies the source of the error within the request payload.
          properties:
            pointer:
              type: string
              description: A `JSON` pointer to the location of the error within the request payload.
            parameter:
              type: string
              description: The name of the `query` parameter that caused the error.
            header:
              type: string
              description: The name of the `header` parameter that caused the error.
        meta:
          type: object
          description: Additional metadata about the error.
  securitySchemes:
    HTTPBasicAuth:
      type: http
      description: Basic Authentication using API key and secrets is currently the main authentication mechanism.
      scheme: basic
    OAuth2ClientCreds:
      type: oauth2
      description: OAuth2 is a standardized protocol for authorization that allows users to share their private resources stored on one site with another site without having to provide their credentials. OAuth2 Client Credentials Grant workflow. This workflow is typically used for server-to-server interactions that require authorization to access specific resources.
      flows:
        clientCredentials:
          tokenUrl: https://account.sendcloud.com/oauth2/token/
          scopes:
            api: Default OAuth scope required to access Sendcloud API.