Clerk

Clerk Clients API

The Client object tracks sessions, as well as the state of any sign in and sign up attempts, for a given device.

Documentation GitHub OpenAPI

Operations 3

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 /clients List all clients (deprecated) · List All Clients #

Ask an LLM

“How do I list every client device record in my instance?”

“Is the list-all-clients endpoint being deprecated?”

Tell an agent

List all clients, newest first.

Show the first {limit} clients.

POST /clients/verify Verify a client token · Verify a Client #

Ask an LLM

“How do I verify the client contained in a token on my backend?”

“Can I check that a client token is valid?”

Tell an agent

Verify the client in token {token}.

Check that client token {token} is genuine.

GET /clients/{client_id} Get a client's details · Get a Client #

Ask an LLM

“How do I look up one client and its sessions by ID?”

“What details are returned for a single client?”

Tell an agent

Get client {client_id}.

Show the details of client {client_id}.

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Clerk Backend Clients API
  x-logo:
    url: https://clerk.com/_next/image?url=%2Fimages%2Fclerk-logo.svg&w=96&q=75
    altText: Clerk docs
    href: https://clerk.com/docs
  contact:
    email: support@clerk.com
    name: Clerk Platform Team
    url: https://clerk.com/support
  description: 'The Clerk REST Backend API, meant to be accessed by backend servers.


    ### Versions


    When the API changes in a way that isn''t compatible with older versions, a new version is released.

    Each version is identified by its release date, e.g. `2025-04-10`. For more information, please see Clerk API Versions.


    Please see https://clerk.com/docs for more information.'
  version: '2025-11-10'
  termsOfService: https://clerk.com/terms
  license:
    name: MIT
    url: https://github.com/clerk/openapi-specs/blob/main/LICENSE
servers:
- url: https://api.clerk.com/v1
security:
- bearerAuth: []
tags:
- name: Clients
  description: The Client object tracks sessions, as well as the state of any sign in and sign up attempts, for a given device.
  externalDocs:
    url: https://clerk.com/docs/references/javascript/client
paths:
  /clients:
    get:
      deprecated: true
      operationId: GetClientList
      x-speakeasy-group: clients
      x-speakeasy-name-override: list
      tags:
      - Clients
      summary: List All Clients
      description: 'Returns a list of all clients. The clients are returned sorted by creation date,

        with the newest clients appearing first.

        Warning: the endpoint is being deprecated and will be removed in future versions.'
      parameters:
      - $ref: '#/components/parameters/Paginated'
      - $ref: '#/components/parameters/LimitParameter'
      - $ref: '#/components/parameters/OffsetParameter'
      responses:
        '200':
          $ref: '#/components/responses/Client.List'
        '400':
          $ref: '#/components/responses/ClerkErrors'
        '401':
          $ref: '#/components/responses/AuthenticationInvalid'
        '410':
          $ref: '#/components/responses/DeprecatedEndpoint'
        '422':
          $ref: '#/components/responses/UnprocessableEntity'
  /clients/verify:
    post:
      operationId: VerifyClient
      x-speakeasy-group: clients
      x-speakeasy-name-override: verify
      tags:
      - Clients
      summary: Verify a Client
      description: Verifies the client in the provided token
      requestBody:
        description: Parameters.
        content:
          application/json:
            schema:
              type: object
              additionalProperties: false
              properties:
                token:
                  type: string
                  description: A JWT that represents the active client.
              required:
              - token
      responses:
        '200':
          $ref: '#/components/responses/Client'
        '400':
          $ref: '#/components/responses/ClerkErrors'
        '401':
          $ref: '#/components/responses/AuthenticationInvalid'
        '404':
          $ref: '#/components/responses/ResourceNotFound'
  /clients/{client_id}:
    get:
      operationId: GetClient
      x-speakeasy-group: clients
      x-speakeasy-name-override: get
      tags:
      - Clients
      summary: Get a Client
      description: Returns the details of a client.
      parameters:
      - name: client_id
        in: path
        description: Client ID.
        required: true
        schema:
          type: string
      responses:
        '200':
          $ref: '#/components/responses/Client'
        '400':
          $ref: '#/components/responses/ClerkErrors'
        '401':
          $ref: '#/components/responses/AuthenticationInvalid'
        '404':
          $ref: '#/components/responses/ResourceNotFound'
components:
  schemas:
    SessionActivityResponse:
      type:
      - object
      - 'null'
      properties:
        object:
          type: string
        id:
          type: string
        device_type:
          type: string
        is_mobile:
          type: boolean
        browser_name:
          type: string
        browser_version:
          type: string
        ip_address:
          type: string
        city:
          type: string
        country:
          type: string
      required:
      - id
      - object
      - is_mobile
    Client:
      type: object
      additionalProperties: false
      properties:
        object:
          type: string
          description: 'String representing the object''s type. Objects of the same type share the same value.

            '
          enum:
          - client
        id:
          type: string
          description: 'String representing the identifier of the session.

            '
        session_ids:
          type: array
          items:
            type: string
        sessions:
          type: array
          items:
            $ref: '#/components/schemas/Session'
        sign_in_id:
          type:
          - string
          - 'null'
        sign_up_id:
          type:
          - string
          - 'null'
        last_active_session_id:
          type:
          - string
          - 'null'
          description: 'Last active session_id.

            '
        last_authentication_strategy:
          type:
          - string
          - 'null'
          description: 'The authentication strategy that was last used to authenticate the user on this client.

            '
        updated_at:
          type: integer
          format: int64
          description: 'Unix timestamp of last update.

            '
        created_at:
          type: integer
          format: int64
          description: 'Unix timestamp of creation.

            '
      required:
      - object
      - id
      - session_ids
      - sessions
      - sign_in_id
      - sign_up_id
      - last_active_session_id
      - last_authentication_strategy
      - updated_at
      - created_at
    ClerkError:
      type: object
      properties:
        message:
          type: string
        long_message:
          type: string
        code:
          type: string
        meta:
          type: object
      required:
      - message
      - long_message
      - code
    SessionTask:
      type: object
      properties:
        key:
          type: string
      required:
      - key
    Session:
      type: object
      additionalProperties: false
      properties:
        object:
          type: string
          description: 'String representing the object''s type. Objects of the same type share the same value.

            '
          enum:
          - session
        id:
          type: string
        user_id:
          type: string
        client_id:
          type: string
        actor:
          type:
          - object
          - 'null'
        status:
          type: string
          enum:
          - active
          - revoked
          - ended
          - expired
          - removed
          - abandoned
          - replaced
          - pending
        last_active_organization_id:
          type:
          - string
          - 'null'
        last_active_at:
          type: integer
        latest_activity:
          $ref: '#/components/schemas/SessionActivityResponse'
        expire_at:
          type: integer
          format: int64
          description: 'Unix timestamp of expiration.

            '
        abandon_at:
          type: integer
          format: int64
          description: 'Unix timestamp of abandonment.

            '
        updated_at:
          type: integer
          format: int64
          description: 'Unix timestamp of last update.

            '
        created_at:
          type: integer
          format: int64
          description: 'Unix timestamp of creation.

            '
        tasks:
          type:
          - array
          - 'null'
          items:
            $ref: '#/components/schemas/SessionTask'
      required:
      - object
      - id
      - user_id
      - client_id
      - status
      - last_active_at
      - expire_at
      - abandon_at
      - updated_at
      - created_at
    ClerkErrors:
      type: object
      properties:
        errors:
          type: array
          items:
            $ref: '#/components/schemas/ClerkError'
        meta:
          type: object
        clerk_trace_id:
          type: string
      required:
      - errors
  responses:
    Client:
      description: Success
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Client'
    UnprocessableEntity:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ClerkErrors'
    ResourceNotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ClerkErrors'
    Client.List:
      description: Success
      content:
        application/json:
          schema:
            type: array
            items:
              $ref: '#/components/schemas/Client'
    ClerkErrors:
      description: Request was not successful
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ClerkErrors'
    DeprecatedEndpoint:
      description: The endpoint is considered deprecated and is pending removal.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ClerkErrors'
    AuthenticationInvalid:
      description: Authentication invalid
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ClerkErrors'
  parameters:
    Paginated:
      name: paginated
      in: query
      description: 'Whether to paginate the results.

        If true, the results will be paginated.

        If false, the results will not be paginated.'
      required: false
      schema:
        type: boolean
    LimitParameter:
      name: limit
      in: query
      description: 'Applies a limit to the number of results returned.

        Can be used for paginating the results together with `offset`.'
      required: false
      schema:
        type: integer
        default: 10
        minimum: 1
        maximum: 500
    OffsetParameter:
      name: offset
      in: query
      description: 'Skip the first `offset` results when paginating.

        Needs to be an integer greater or equal to zero.

        To be used in conjunction with `limit`.'
      required: false
      schema:
        type: integer
        default: 0
        minimum: 0
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Secret key, obtained under "API Keys" in the Clerk Dashboard.
      bearerFormat: sk_<environment>_<secret value>
externalDocs:
  url: https://clerk.com/docs
x-speakeasy-retries:
  strategy: backoff
  backoff:
    initialInterval: 500
    maxInterval: 60000
    maxElapsedTime: 3600000
    exponent: 1.5
  statusCodes:
  - 5XX
  retryConnectionErrors: true

Clerk Clients API

Operations 3

Documentation

Specifications

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OpenAPI Specification