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

# List signatures

> Returns your organization's custom signatures, newest first, including ones still being prepared. Requires the `signatures:read` ability.



## OpenAPI

````yaml /en/openapi.yaml get /api/signatures
openapi: 3.1.0
info:
  title: Paperjoy API
  version: '2026-10-19'
  description: >-
    Create, preview, and track real handwritten postcards. The API key decides
    whether a request runs in test or live mode.
  termsOfService: https://paperjoy.co/regulamin
  license:
    name: Proprietary
    url: https://paperjoy.co/regulamin
servers:
  - url: https://paperjoy.co
security:
  - bearerAuth: []
tags:
  - name: Account
    description: The authenticated account and its credit balance.
  - name: Postcards
    description: Create, preview, list, and retrieve postcards.
  - name: Signatures
    description: Custom handwritten signatures available to your organization.
paths:
  /api/signatures:
    get:
      tags:
        - Signatures
      summary: List signatures
      description: >-
        Returns your organization's custom signatures, newest first, including
        ones still being prepared. Requires the `signatures:read` ability.
      operationId: listSignatures
      responses:
        '200':
          description: Your organization's signatures.
          content:
            application/json:
              schema:
                type: object
                required:
                  - data
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Signature'
              example:
                data:
                  - id: sig_ZeXOkSQjTp
                    name: Marta Nowak
                    status: active
                    created_at: '2026-10-10T09:00:00+00:00'
                    updated_at: '2026-10-12T11:20:00+00:00'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
components:
  schemas:
    Signature:
      type: object
      required:
        - id
        - name
        - status
        - created_at
        - updated_at
      properties:
        id:
          type: string
          examples:
            - sig_ZeXOkSQjTp
        name:
          type: string
          examples:
            - Marta Nowak
        status:
          type: string
          enum:
            - in_progress
            - active
          description: >-
            `in_progress` while Paperjoy prepares the signature from your scan.
            Only `active` signatures can be used.
        created_at:
          type:
            - string
            - 'null'
          format: date-time
        updated_at:
          type:
            - string
            - 'null'
          format: date-time
    Error:
      type: object
      required:
        - message
      properties:
        message:
          type: string
  responses:
    Unauthorized:
      description: The API key is missing, invalid, revoked, or expired.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            message: Unauthenticated.
    Forbidden:
      description: >-
        The API key lacks the required ability, or the resource belongs to
        someone else.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            message: This action is unauthorized.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        A Paperjoy API key. Keys starting with `pj_test_` use test mode; keys
        starting with `pj_live_` use live mode.

````

This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.