Snowflake External Volume API

The external-volume API from Snowflake — 3 operation(s) for external-volume.

Documentation GitHub OpenAPI

Operations 5

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

GET /api/v2/external-volumes List external volumes · List External Volumes #

Ask an LLM

“Which external volumes are configured for my Iceberg tables?”

“Can I see all the external storage volumes in my account?”

Tell an agent

List all external volumes in the account.

Show me every configured external volume.

POST /api/v2/external-volumes Create an external volume · Create an External Volume #

Ask an LLM

“How do I point Snowflake at my own cloud storage for Iceberg data?”

“Can I create an external volume that allows writes?”

Tell an agent

Create external volume {name} with storage locations {storage_locations}.

Create external volume {name} on {storage_locations} with allow writes set to {allow_writes}.

GET /api/v2/external-volumes/{name} Get an external volume · Fetch an External Volume #

Ask an LLM

“What storage locations does a specific external volume use?”

“Does a given external volume allow writes?”

Tell an agent

Fetch external volume {name}.

Show the storage locations of this external volume.

DELETE /api/v2/external-volumes/{name} Delete an external volume · Delete an External Volume #

Ask an LLM

“How do I remove an external volume?”

“Can I delete an external volume by its name?”

Tell an agent destructive · confirm first

Delete external volume {name}.

Drop this external volume from the account.

POST /api/v2/external-volumes/{name}:undrop Restore a dropped external volume · Undrop an External Volume #

Ask an LLM

“I dropped an external volume by mistake; can I bring it back?”

“Is undrop supported for external volumes?”

Tell an agent

Undrop external volume {name} that I deleted.

Restore this recently dropped external volume.

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OpenAPI Specification

openapi: 3.2.0
info:
  version: 0.0.1
  title: Snowflake External Volume API
  description: The Snowflake External Volume API is a REST API that you can use to access, update, and perform certain actions on External Volume resource in a Snowflake database.
  contact:
    name: Snowflake, Inc.
    url: https://snowflake.com
    email: support@snowflake.com
servers:
- description: Snowflake REST Server
  url: https://org-account.snowflakecomputing.com
security:
- KeyPair: []
- ExternalOAuth: []
- SnowflakeOAuth: []
tags:
- name: external-volume
paths:
  /api/v2/external-volumes:
    get:
      summary: List External Volumes
      tags:
      - external-volume
      description: List external volumes
      operationId: listExternalVolumes
      parameters:
      - $ref: common.yaml#/components/parameters/like
      responses:
        '200':
          description: successful
          headers:
            X-Snowflake-Request-ID:
              $ref: common.yaml#/components/headers/X-Snowflake-Request-ID
            Link:
              $ref: common.yaml#/components/headers/Link
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/ExternalVolume'
              examples:
                Listexternalvolumes200Example:
                  summary: Default listExternalVolumes 200 response
                  x-microcks-default: true
                  value:
                  - name: Example Title
                    storage_locations:
                    - {}
                    allow_writes: true
                    comment: example_value
                    created_on: '2026-01-15T10:30:00Z'
                    owner: example_value
                    owner_role_type: example_value
        '202':
          $ref: common.yaml#/components/responses/202SuccessAcceptedResponse
        '400':
          $ref: common.yaml#/components/responses/400BadRequest
        '401':
          $ref: common.yaml#/components/responses/401Unauthorized
        '403':
          $ref: common.yaml#/components/responses/403Forbidden
        '404':
          $ref: common.yaml#/components/responses/404NotFound
        '405':
          $ref: common.yaml#/components/responses/405MethodNotAllowed
        '408':
          $ref: common.yaml#/components/responses/408RequestTimeout
        '409':
          $ref: common.yaml#/components/responses/409Conflict
        '410':
          $ref: common.yaml#/components/responses/410Gone
        '429':
          $ref: common.yaml#/components/responses/429LimitExceeded
        '500':
          $ref: common.yaml#/components/responses/500InternalServerError
        '503':
          $ref: common.yaml#/components/responses/503ServiceUnavailable
        '504':
          $ref: common.yaml#/components/responses/504GatewayTimeout
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    post:
      summary: Create an External Volume
      tags:
      - external-volume
      description: Create an external volume
      operationId: createExternalVolume
      parameters:
      - $ref: common.yaml#/components/parameters/createMode
      responses:
        '200':
          $ref: common.yaml#/components/responses/200SuccessResponse
        '202':
          $ref: common.yaml#/components/responses/202SuccessAcceptedResponse
        '400':
          $ref: common.yaml#/components/responses/400BadRequest
        '401':
          $ref: common.yaml#/components/responses/401Unauthorized
        '403':
          $ref: common.yaml#/components/responses/403Forbidden
        '404':
          $ref: common.yaml#/components/responses/404NotFound
        '405':
          $ref: common.yaml#/components/responses/405MethodNotAllowed
        '408':
          $ref: common.yaml#/components/responses/408RequestTimeout
        '409':
          $ref: common.yaml#/components/responses/409Conflict
        '410':
          $ref: common.yaml#/components/responses/410Gone
        '429':
          $ref: common.yaml#/components/responses/429LimitExceeded
        '500':
          $ref: common.yaml#/components/responses/500InternalServerError
        '503':
          $ref: common.yaml#/components/responses/503ServiceUnavailable
        '504':
          $ref: common.yaml#/components/responses/504GatewayTimeout
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ExternalVolume'
            examples:
              CreateexternalvolumeRequestExample:
                summary: Default createExternalVolume request
                x-microcks-default: true
                value:
                  name: Example Title
                  storage_locations:
                  - name: Example Title
                    storage_provider: S3
                  allow_writes: true
                  comment: example_value
                  created_on: '2026-01-15T10:30:00Z'
                  owner: example_value
                  owner_role_type: example_value
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /api/v2/external-volumes/{name}:
    get:
      summary: Fetch an External Volume
      tags:
      - external-volume
      description: Fetch an external volume
      operationId: fetchExternalVolume
      parameters:
      - $ref: common.yaml#/components/parameters/name
      responses:
        '200':
          description: successful
          headers:
            X-Snowflake-Request-ID:
              $ref: common.yaml#/components/headers/X-Snowflake-Request-ID
            Link:
              $ref: common.yaml#/components/headers/Link
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ExternalVolume'
              examples:
                Fetchexternalvolume200Example:
                  summary: Default fetchExternalVolume 200 response
                  x-microcks-default: true
                  value:
                    name: Example Title
                    storage_locations:
                    - name: Example Title
                      storage_provider: S3
                    allow_writes: true
                    comment: example_value
                    created_on: '2026-01-15T10:30:00Z'
                    owner: example_value
                    owner_role_type: example_value
        '202':
          $ref: common.yaml#/components/responses/202SuccessAcceptedResponse
        '400':
          $ref: common.yaml#/components/responses/400BadRequest
        '401':
          $ref: common.yaml#/components/responses/401Unauthorized
        '403':
          $ref: common.yaml#/components/responses/403Forbidden
        '404':
          $ref: common.yaml#/components/responses/404NotFound
        '405':
          $ref: common.yaml#/components/responses/405MethodNotAllowed
        '408':
          $ref: common.yaml#/components/responses/408RequestTimeout
        '409':
          $ref: common.yaml#/components/responses/409Conflict
        '410':
          $ref: common.yaml#/components/responses/410Gone
        '429':
          $ref: common.yaml#/components/responses/429LimitExceeded
        '500':
          $ref: common.yaml#/components/responses/500InternalServerError
        '503':
          $ref: common.yaml#/components/responses/503ServiceUnavailable
        '504':
          $ref: common.yaml#/components/responses/504GatewayTimeout
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    delete:
      summary: Delete an External Volume
      tags:
      - external-volume
      description: Delete an external volume
      operationId: deleteExternalVolume
      parameters:
      - $ref: common.yaml#/components/parameters/name
      - $ref: common.yaml#/components/parameters/ifExists
      responses:
        '200':
          $ref: common.yaml#/components/responses/200SuccessResponse
        '202':
          $ref: common.yaml#/components/responses/202SuccessAcceptedResponse
        '400':
          $ref: common.yaml#/components/responses/400BadRequest
        '401':
          $ref: common.yaml#/components/responses/401Unauthorized
        '403':
          $ref: common.yaml#/components/responses/403Forbidden
        '404':
          $ref: common.yaml#/components/responses/404NotFound
        '405':
          $ref: common.yaml#/components/responses/405MethodNotAllowed
        '408':
          $ref: common.yaml#/components/responses/408RequestTimeout
        '409':
          $ref: common.yaml#/components/responses/409Conflict
        '410':
          $ref: common.yaml#/components/responses/410Gone
        '429':
          $ref: common.yaml#/components/responses/429LimitExceeded
        '500':
          $ref: common.yaml#/components/responses/500InternalServerError
        '503':
          $ref: common.yaml#/components/responses/503ServiceUnavailable
        '504':
          $ref: common.yaml#/components/responses/504GatewayTimeout
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /api/v2/external-volumes/{name}:undrop:
    post:
      summary: Undrop an External Volume
      tags:
      - external-volume
      description: Undrop an external volume
      operationId: undropExternalVolume
      parameters:
      - $ref: common.yaml#/components/parameters/name
      responses:
        '200':
          $ref: common.yaml#/components/responses/200SuccessResponse
        '202':
          $ref: common.yaml#/components/responses/202SuccessAcceptedResponse
        '400':
          $ref: common.yaml#/components/responses/400BadRequest
        '401':
          $ref: common.yaml#/components/responses/401Unauthorized
        '403':
          $ref: common.yaml#/components/responses/403Forbidden
        '404':
          $ref: common.yaml#/components/responses/404NotFound
        '405':
          $ref: common.yaml#/components/responses/405MethodNotAllowed
        '408':
          $ref: common.yaml#/components/responses/408RequestTimeout
        '409':
          $ref: common.yaml#/components/responses/409Conflict
        '410':
          $ref: common.yaml#/components/responses/410Gone
        '429':
          $ref: common.yaml#/components/responses/429LimitExceeded
        '500':
          $ref: common.yaml#/components/responses/500InternalServerError
        '503':
          $ref: common.yaml#/components/responses/503ServiceUnavailable
        '504':
          $ref: common.yaml#/components/responses/504GatewayTimeout
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    StorageLocation:
      type: object
      properties:
        name:
          type: string
          description: ''
          example: Example Title
        storage_provider:
          type: string
          enum:
          - S3
          - S3GOV
          - GCS
          - AZURE
          description: Specifies the cloud storage provider that stores your data files.
          example: S3
      required:
      - name
      - storage_provider
      discriminator:
        propertyName: storage_provider
        mapping:
          S3: StorageLocationS3
          S3GOV: StorageLocationS3Gov
          GCS: StorageLocationGcs
          AZURE: StorageLocationAzure
    ExternalVolume:
      type: object
      description: A Snowflake external volume
      properties:
        name:
          type: string
          pattern: ^"([^"]|"")+"|[a-zA-Z_][a-zA-Z0-9_$]*$
          description: String that specifies the identifier (the name) for the external volume; must be unique in your account.
          example: Example Title
        storage_locations:
          type: array
          items:
            $ref: '#/components/schemas/StorageLocation'
          description: Set of named cloud storage locations in different regions and, optionally, cloud platforms.
          example: []
        allow_writes:
          type: boolean
          description: Specifies whether write operations are allowed for the external volume; must be set to TRUE for Iceberg tables that use Snowflake as the catalog.
          example: true
        comment:
          type: string
          description: String (literal) that specifies a comment for the external volume.
          example: example_value
        created_on:
          type: string
          format: date-time
          readOnly: true
          description: Date and time when the external volume was created.
          example: '2026-01-15T10:30:00Z'
        owner:
          type: string
          pattern: ^"([^"]|"")+"|[a-zA-Z_][a-zA-Z0-9_$]*$
          readOnly: true
          description: Role that owns the external volume
          example: example_value
        owner_role_type:
          type: string
          pattern: ^"([^"]|"")+"|[a-zA-Z_][a-zA-Z0-9_$]*$
          readOnly: true
          description: The type of role that owns the external volume
          example: example_value
      required:
      - name
      - storage_locations
  securitySchemes:
    KeyPair:
      $ref: common.yaml#/components/securitySchemes/KeyPair
    ExternalOAuth:
      $ref: common.yaml#/components/securitySchemes/ExternalOAuth
    SnowflakeOAuth:
      $ref: common.yaml#/components/securitySchemes/SnowflakeOAuth

Snowflake External Volume API

Operations 5

Documentation

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