# Source: https://docs.pinecone.io/reference/api/2025-10/control-plane/list_collections.md

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pinecone.io/llms.txt
> Use this file to discover all available pages before exploring further.

# List collections

> List all collections in a project.
Serverless indexes do not support collections.


<RequestExample>
  ```shell curl theme={null}
  PINECONE_API_KEY="YOUR_API_KEY"

  curl -i -X GET "https://api.pinecone.io/collections" \
    -H "Api-Key: $PINECONE_API_KEY" \
    -H "X-Pinecone-Api-Version: 2025-10"
  ```
</RequestExample>

<ResponseExample>
  ```json curl theme={null}
  {
      "collections": [
          {
              "name": "example-collection1",
              "status": "Ready",
              "environment": "us-east-1-aws",
              "size": 3081918,
              "vector_count": 99,
              "dimension": 3
          },
          {
              "name": "example-collection1",
              "status": "Ready",
              "environment": "us-east-1-aws",
              "size": 160087040000000,
              "vector_count": 10000000,
              "dimension": 1536
          }
      ]
  }
  ```
</ResponseExample>


## OpenAPI

````yaml https://raw.githubusercontent.com/pinecone-io/pinecone-api/refs/heads/main/2025-10/db_control_2025-10.oas.yaml get /collections
openapi: 3.0.3
info:
  title: Pinecone Control Plane API
  description: >-
    Pinecone is a vector database that makes it easy to search and retrieve
    billions of high-dimensional vectors.
  contact:
    name: Pinecone Support
    url: https://support.pinecone.io
    email: support@pinecone.io
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
  version: 2025-10
servers:
  - url: https://api.pinecone.io
    description: Production API endpoints
security:
  - ApiKeyAuth: []
tags:
  - name: Manage Indexes
    description: Actions that manage indexes
externalDocs:
  description: More Pinecone.io API docs
  url: https://docs.pinecone.io/introduction
paths:
  /collections:
    get:
      tags:
        - Manage Indexes
      summary: List collections
      description: |
        List all collections in a project.
        Serverless indexes do not support collections.
      operationId: list_collections
      parameters:
        - in: header
          name: X-Pinecone-Api-Version
          description: Required date-based version header
          required: true
          schema:
            default: 2025-10
            type: string
          style: simple
      responses:
        '200':
          description: List all the collections in your current project.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CollectionList'
              examples:
                multiple-collections:
                  summary: Multiple collections with different states
                  value:
                    collections:
                      - dimension: 3
                        environment: us-east1-gcp
                        name: small-collection
                        size: 3126700
                        status: Ready
                        vector_count: 99
                      - dimension: 3
                        environment: us-east1-gcp
                        name: small-collection-new
                        size: 3126700
                        status: Initializing
                        vector_count: 99
                      - dimension: 1536
                        environment: us-east1-gcp
                        name: big-collection
                        size: 160087040000000
                        status: Ready
                        vector_count: 10000000
                no-collections:
                  summary: No collections created yet
                  value:
                    collections: []
        '401':
          description: 'Unauthorized. Possible causes: Invalid API key.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                unauthorized:
                  summary: Unauthorized
                  value:
                    error:
                      code: UNAUTHENTICATED
                      message: Invalid API key.
                    status: 401
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              examples:
                internal-server-error:
                  summary: Internal server error
                  value:
                    error:
                      code: UNKNOWN
                      message: Internal server error
                    status: 500
components:
  schemas:
    CollectionList:
      description: The list of collections that exist in the project.
      type: object
      properties:
        collections:
          description: List of collections in the project
          type: array
          items:
            $ref: '#/components/schemas/CollectionModel'
    ErrorResponse:
      example:
        error:
          code: QUOTA_EXCEEDED
          message: >-
            The index exceeds the project quota of 5 pods by 2 pods. Upgrade
            your account or change the project settings to increase the quota.
        status: 429
      description: The response shape used for all error responses.
      type: object
      properties:
        status:
          example: 500
          description: The HTTP status code of the error.
          type: integer
        error:
          example:
            code: INVALID_ARGUMENT
            message: >-
              Index name must contain only lowercase alphanumeric characters or
              hyphens, and must not begin or end with a hyphen.
          description: Detailed information about the error that occurred.
          type: object
          properties:
            code:
              description: >-
                The error code.

                Possible values: `OK`, `UNKNOWN`, `INVALID_ARGUMENT`,
                `DEADLINE_EXCEEDED`, `QUOTA_EXCEEDED`, `NOT_FOUND`,
                `ALREADY_EXISTS`, `PERMISSION_DENIED`, `UNAUTHENTICATED`,
                `RESOURCE_EXHAUSTED`, `FAILED_PRECONDITION`, `ABORTED`,
                `OUT_OF_RANGE`, `UNIMPLEMENTED`, `INTERNAL`, `UNAVAILABLE`,
                `DATA_LOSS`, `FORBIDDEN`, `UNPROCESSABLE_ENTITY`, or
                `PAYMENT_REQUIRED`.
              x-enum:
                - OK
                - UNKNOWN
                - INVALID_ARGUMENT
                - DEADLINE_EXCEEDED
                - QUOTA_EXCEEDED
                - NOT_FOUND
                - ALREADY_EXISTS
                - PERMISSION_DENIED
                - UNAUTHENTICATED
                - RESOURCE_EXHAUSTED
                - FAILED_PRECONDITION
                - ABORTED
                - OUT_OF_RANGE
                - UNIMPLEMENTED
                - INTERNAL
                - UNAVAILABLE
                - DATA_LOSS
                - FORBIDDEN
                - UNPROCESSABLE_ENTITY
                - PAYMENT_REQUIRED
              type: string
            message:
              example: >-
                Index name must contain only lowercase alphanumeric characters
                or hyphens, and must not begin or end with a hyphen.
              description: A human-readable description of the error
              type: string
            details:
              description: >-
                Additional information about the error. This field is not
                guaranteed to be present.
              type: object
          required:
            - code
            - message
      required:
        - status
        - error
    CollectionModel:
      description: >-
        The CollectionModel describes the configuration and status of a Pinecone
        collection.
      type: object
      properties:
        name:
          example: example-collection
          description: The name of the collection.
          type: string
        size:
          example: 10000000
          description: The size of the collection in bytes.
          type: integer
          format: int64
        status:
          example: Initializing
          description: |-
            The status of the collection.
            Possible values: `Initializing`, `Ready`, or `Terminating`.
          x-enum:
            - Initializing
            - Ready
            - Terminating
          type: string
        dimension:
          example: 1536
          description: >-
            The dimension of the vectors stored in each record held in the
            collection.
          type: integer
          format: int32
          minimum: 1
          maximum: 20000
        vector_count:
          example: 120000
          description: The number of records stored in the collection.
          type: integer
          format: int32
        environment:
          example: us-east1-gcp
          description: The environment where the collection is hosted.
          type: string
      required:
        - name
        - status
        - environment
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: Api-Key
      description: >-
        An API Key is required to call Pinecone APIs. Get yours from the
        [console](https://app.pinecone.io/).

````